Abstract: A method of medical image processing for images of body structures, comprising: receiving anatomical data to reconstruct an anatomical image of a region of a body of a patient, said region comprises a portion of at least one internal body part which borders or is spaced apart from a target tissue; receiving functional data from a functional imaging modality which images at least said portion of the region of the body of the patient; processing said anatomical image to generate at least one image mask corresponding to the zone outside of the wall of said at least one internal body part; correlating the at least one generated image mask with the functional data for guiding a reconstruction of a functional image depicting said target tissue; and providing the reconstructed functional image.

Abstract: A method, apparatus, and article of manufacture for irradiating one or more targets within a sample with electromagnetic (EM) radiation. One or more targets within the sample are controllably defined with an acoustic field. The sample is irradiated with input EM radiation having an input wavefront. An amount of frequency shifted EM radiation is detected, wherein at least some of the input EM radiation that passes through the acoustic field at the targets is shifted in frequency to form the frequency shifted EM radiation. The input wavefront is modified, using feedback comprising the amount of the frequency shifted EM radiation that is detected, into a modified wavefront. The sample is irradiated using the input EM radiation comprising the modified wavefront, and the process is repeated as desired.

Abstract: A method of performing an optical examination on a test object and an optical examination device. The method includes obtaining a first detection light quantity distribution that is a detection light quantity distribution obtained for each of a plurality of optical models that simulate the test object, obtaining, using the optical sensor, a second detection light quantity distribution that is a distribution of an amount of light detected on the test object, and selecting based on the first light quantity distribution and the second detection light quantity distribution, an optical model suited to the test object from the plurality of optical models. The optical examination device includes an optical sensor, and a control system to control the irradiation system to obtain an amount of light detected by the detection system.

Abstract: At least one processor is configured to control transmission of infrared rays from an infrared transmitter. A signal reception unit is configured to receive waveform signals of the infrared rays received by an infrared receiver. The at least one processor is configured to measure pulses of a user who wears an earphone based on the waveform signals and to control a transmission pattern of the infrared rays from the infrared transmitter based on which of accuracy in measurement of pulses and power saving is prioritized.

Abstract: A system and method for monitoring biological parameters in freely moving animals that, in the illustrative embodiment, comprises a two-color optical measurement/recording system that is combined with a fluorescent protein reporter of cellular membrane potentials and a fluorescent protein that is insensitive to such cellular membrane potentials. The two wavelengths are used to un-mix physiological artifacts in recordings that occur in freely moving animals.

Abstract: An imaging device configured for optoacoustic imaging of an object, including an illumination device including optical components arranged to illuminate the object, a detector device comprising an array of detector elements arranged in a tank and arranged to detect acoustic signals created in the object, and a container device including a tank arranged to accommodate the detector device, the object and a matching transmission medium, a holding device adapted to position and move the object relative to the illumination device and the detector device, wherein the optical components are arranged in the tank to illuminate the object from different directions.

Abstract: A system and method include contactless detecting and tracking cardiac activity by making use of a feedback control system, such as a Phase Locked Loop (PLL), in real-time or from a prerecorded signal stream.

Abstract: A method of assessing tissue health comprises the steps of obtaining depth-resolved spectra of a selected area of in vivo tissue, and assessing the health of the selected area based on the depth-resolved structural information of the scatterers. Obtaining depth-resolved spectra of the selected area comprises directing a sample beam towards the selected area at an angle, and receiving an angle-resolved scattered sample beam. The angle-resolved scattered sample beam is cross-correlated with the reference beam to produce an angle-resolved cross-correlated signal about the selected area, which is spectrally dispersed to yield an angle-resolved, spectrally-resolved cross-correlation profile having depth-resolved information about the selected area. The angle-resolved, spectrally-resolved cross-correlation profile is processed to obtain depth-resolved information about scatterers in the selected area.

Abstract: Exemplified methods and systems facilitate presentation of data derived from measurements of the heart in a non-invasive procedure (e.g., via phase space tomography analysis). In particular, the exemplified methods and systems facilitate presentation of such measurements in a graphical user interface, or “GUI” (e.g., associated with a healthcare provider web portal to be used by physicians, researchers, or patients, and etc.) and/or in a report for diagnosis of heart pathologies and disease. The presentation facilitates a unified and intuitive visualization that includes three-dimensional visualizations and two-dimensional visualizations that are concurrently presented within a single interactive interface and/or report.

Abstract: Methods and apparatus are provided for assessing endothelial function in a mammal. In certain embodiments the methods involve using a cuff to apply pressure to an artery in a subject to determine a plurality of baseline values for a parameter related to endothelial function as a function of applied pressure (Pm); b) applying a stimulus to the subject; and applying external pressure Pm to the artery to determine a plurality of stimulus-effected values for the parameter related to endothelial function as a function of applied pressure (Pm); where the baseline values are determined from measurements made when said mammal is not substantially effected by said stimulus and differences in said baseline values and said stimulus-effected values provide a measure of endothelial function in said mammal.

Abstract: A device for detection of internal bleeding in a patient's body is provided. An optical interface for transmitting IR light through an area of a skin of a patient and to collect IR light from the area of the skin, is provided. In some embodiments the optical interface includes one or more delivery components and one or more collection components. The delivery component includes a plurality of first optical channels configured to transmit the IR light through a plurality of respective first sub-areas on the area of the skin, into an internal layer of the body. The collection component includes a plurality of second optical channels, configured to collect IR light from a plurality of respective second sub-areas on the area of the skin.

Abstract: An implantable cardiac device is provided. The implantable cardiac device includes a sensing unit adapted to measure an intrathoracic or intracardiac impedance, pressure, and/or accelerometry input stream, which includes a patient's respiratory waveforms. Furthermore, the implantable cardiac device includes a quantizer-unit adapted to sample the input stream with an initial sampling frequency Fs, providing input samples of the input stream. The implantable cardiac device further includes a filter bank 50 suited to perform a streaming Wavelet transformation on the input samples on a sample-by-sample basis, using the initial sampling frequency Fs provided by the quantizer-unit, wherein the streaming Wavelet transformation is adapted to perform a source separation, extracting, and separating the respiratory waveforms of the input stream.

Abstract: A biosignal measurement apparatus includes: a potential difference measurement unit that measures a potential difference between a plurality of electrodes of an electrode unit placed on a user's chest; an ECG analysis unit that obtains an electrocardiogram (ECG) indicating a temporal variation of a cardiac potential of the user, from the potential difference measured by the potential difference measurement unit; an impedance measurement switching unit that determines a start timing of a first period which is a period not including an R wave, using the ECG obtained by the ECG analysis unit; an impedance measurement unit that measures an impedance between the plurality of electrodes in the first period; and a respiratory calculation unit that calculates respiratory information related to respiration of the user, based on a temporal variation of the impedance measured by the impedance measurement unit.

Abstract: The present invention is directed to a wearable system wherein elements of the system, including various sensors adapted to detect biometric and other data and/or to deliver drugs, are positioned proximal to, on the ear or in the ear canal of a person. In embodiments of the invention, elements of the system are positioned on the ear or in the ear canal for extended periods of time. For example, an element of the system may be positioned on the tympanic membrane of a user and left there overnight, for multiple days, months, or years. Because of the position and longevity of the system elements in the ear canal, the present invention has many advantages over prior wearable biometric and drug delivery devices.

Abstract: A blood flow index calculating method includes: obtaining, by a camera, an image capturing a first site of a living body and a second site of the living body; extracting an area of the first site of the living body and an area of the second site of the living body, by a processor; detecting a pulse wave pattern of the first site of the living body from the area of the first site of the living body and detecting a pulse wave pattern of the second site of the living body from the area of the second site of the living body, by the processor; first calculating a delay amount from the pulse wave pattern of the first site and the pulse wave pattern of the second site, by the processor; and second calculating an index related to blood flow by using the delay amount, by the processor.

Abstract: A method of measuring blood pressure, including: sensing an atmospheric pressure, an applied pressure, and a blood pressure of a blood vessel delivered to a skin and outputting an electrical signal indicating a result of sensing the pressures; dividing the electrical signal into a divided electrical signal which includes a direct current (DC) signal and an alternating current (AC) signal; processing the divided electrical signal; calculating the applied pressure using the processed electrical signal; and calculating a blood pressure average using the calculated applied pressure and a swing value of the processed electrical signal.

Abstract: An automatic blood pressure measuring apparatus includes: a compression band wrapped around a compressed site of a living body, the automatic blood pressure measuring apparatus sequentially extracting a pulse wave that is pressure oscillation in the compression band in a process of changing a compression pressure value of the compression band to determine a blood pressure value of the living body based on a change in the pulse wave, the compression band having a plurality of expansion bags having independent air chambers aligned in a width direction to respectively compress the compressed site of the living body, the automatic blood pressure measuring apparatus sequentially calculating an amplitude ratio of an amplitude value of a pulse wave from a predetermined expansion bag positioned on a downstream side of an upstream expansion bag positioned on an upstream side of an artery in the compressed site out of the expansion bags.

Abstract: A system for determining a physiological signal of a person supported by a person support apparatus using signals from force transducers is described herein. Force transducers communicate with a controller to transmit signals indicative of weight acting on them. The controller determines blood volume pulse information from the signals received from the force transducers. Heart rate and respiratory rate information is derived from the blood volume pulse information.

Abstract: Systems and methods are provided for determining performance capacity. One such system includes a wearable device having a biosensor that measures biometrics and a motion sensor that monitors activity. The system also includes a processor coupled to the biosensor and the motion sensor, and a non-transitory computer-readable medium operatively coupled to the processor and storing instructions that, when executed, cause the processor to execute specific functions. The instructions are executed to cause the processor to generate biometric data from the biometrics and activity data from the activity. Further, the instructions are executed to create a response profile based on one or more of a heart rate variability (HRV) score based on the biometric data, a fatigue score based on the activity data, a predicted HRV score based on the biometric and activity data, and a predicted fatigue score based on the biometric data and/or the activity data.

Abstract: Technology for a wearable heart rate monitoring device is disclosed. The wearable heart rate monitoring device can include a heart rate sensor operable to collect sensor data, a modulator operable to generate a modulated signal that includes the sensor data, a housing configured to engage a body feature or surface in a manner that allows for heart rate detection, and a communication module configured to transmit the sensor data in the modulated signal to a mobile computing device via a wired connection that is power limited. The mobile computing device is typically configured to demodulate the modulated signal in order to extract the sensor data.

Abstract: Disclosed methods and systems may be operable to obtain non-contact diagnostic information about movements of scattering objects such as fluids in subsurface vasculature in tissue. As an example, a method may include causing a light source to illuminate the tissue with at least a first portion of the emitted light and illuminate an optical modulator with at least a second portion of the emitted light. The second portion of the emitted light may be modulated by the optical modulator. An offset source is configured to provide an offset frequency signal. An image sensor may receive optical information from the sample. A heterodyne signal based on the reference frequency signal and the offset frequency signal may be used as a gain input of each detector element of the image sensor. Based on the received information, a movement of a portion of the sample may be determined.

Abstract: The present application provides methods and devices for determining an action and/or an action part, and generally relates to the field of wearable devices. A method disclosed herein comprises: in response to that a first part on a body of a user executes an action, acquiring target blood flow information of the first part or a second part corresponding to the first part; and determining the first part and/or the action according to the target blood flow information and reference information. The methods and devices disclosed provide a new scheme for recognizing an action and/or an action part.

Abstract: Neuromodulation systems with nerve monitoring assemblies and associated devices, systems, and methods are disclosed herein. A neuromodulation system configured in accordance with some embodiments of the present technology can include, for example, a generator, a nerve monitoring assembly configured to detect electroneurogram (ENG) signals, and a neuromodulation catheter. The neuromodulation catheter can include an elongated shaft with a distal portion and a proximal portion. The distal portion of the shaft can include an array of electrodes configured to detect nerve activity from within a blood vessel of a human. The proximal portion of the shaft can include at least one connector that operably couples the electrodes to the generator and to the nerve monitoring assembly.

Abstract: A medical device is utilized to monitor physiological parameters of a patient and capture segments of the monitored physiological parameters. The medical device includes circuitry configured to monitor one or more physiological parameters associated with the patient and an analysis module that includes a buffer and a processor. The buffer stores monitored physiological parameters and the processor analyzes the monitored physiological parameters and triggers capture of segments from the buffer in response to a triggering criteria being satisfied. The analysis module selects a pre-trigger duration based at least in part on the triggering criteria.

Abstract: An electro-physiology mapping catheter is disclosed which includes an elongated body having opposed proximal and distal end portions and defining a longitudinal axis therebetween, the distal end portion of the body forming a generally circular mapping loop that extends through a plane oriented generally perpendicular to the longitudinal axis of the elongated body, the circular mapping loop having an inwardly bent distal tip section.

Abstract: A device disclosure includes a unit that measures an eye potential; and a unit that sets a threshold coefficient based on a frequency characteristic value of eye potential differential values and sets an upper threshold and a lower threshold based on a number obtained by multiplying a standard deviation of the eye potential differential values by the threshold coefficient, and detects a change in the eye potential differential values as the eyeblink waveform wherein the change occurs in the time-series data on the eye potential differential values either when the eye potential differential value becomes larger than the upper threshold and, after that, changes from the upper threshold to the lower threshold within a predetermined time or when the eye potential differential value becomes smaller than the lower threshold and, after that, changes from the lower threshold to the upper threshold within the predetermined time.

Abstract: A wrist-wearable body composition measuring device includes a main body; a strap connected to the main body; a first input electrode and a first output electrode which are provided on an inner surface of the strap and configured to contact a wrist of a subject; a second input electrode and a second output electrode which are provided on an outer surface of the strap; a measuring unit configured to measure a body impedance of the subject by applying current to the first input electrode and the second input electrode and detecting a voltage generated between the first output electrode and the second output electrode in response to the applied current; and a processor configured to analyze a body composition of the subject based on the body impedance measured by the measuring unit.

Abstract: A method of internal MRI employing at least one active internal MRI detector located within a sample of interest. The method includes applying an MRI pulse sequence to the sample of interest. The MRI pulse sequence includes spatial encoding projections. The method further includes receiving MRI signals at the active internal MRI detector and reconstructing at least one MRI image from the MRI signals using an error minimizing algorithm. The MRI pulse sequence provides an increase in an acquisition speed when reconstructing the at least one MRI image by sparsely under-sampling an image k-space in at least one dimension.

Abstract: There is provided a technique for DWI measurement, in which MPG application is performed in many directions, that enables detection of presence or absence of body motion during imaging without prolongation of imaging time. A plurality of image groups each comprising 6 or more diffusion-weighted images selected from a plurality of diffusion-weighted images are created so the groups differ from one anther in one or more diffusion-weighted images included in each of the groups. Value of a predetermined diffusion index representing a characteristic amount of diffusion-weighted image is calculated for each image group from the diffusion-weighted images included in each image group. Value of a predetermined body motion index relating to body motion information is calculated from the value of the diffusion index for each image group. Presence or absence of body motion is determined for each image group on the basis of the value of the body motion index.

Abstract: An animal handling system for use in a magnetic resonance device (MRD) device, including: a first elongated enclosure having a proximal end, a distal open end and a first geometry, and a second elongated enclosure having a proximal end, a distal open end and a second geometry. The first geometry comprises a first cross-sectional area that is larger than a second cross-sectional area of the second geometry. The first elongated enclosure is inserted into a first input port of the MRD device and the second elongated enclosure is inserted in a second input port of the MRD device diametrically opposite to first input port. The first elongated enclosure and the second elongated enclosure are inserted into the respective input ports, the second elongated enclosure slides into the first elongated enclosure through the open distal end of the first elongated enclosure.

Abstract: A coil housing for a magnetic resonance (“MR”) imaging apparatus, comprises an anatomy receiving space defined by the coil housing, shaped and sized to receive at least a portion of a patient's anatomy to be imaged and a spacer shaped to maintain the anatomy receiving space a first distance from a bore wall of the MR imaging apparatus, the first distance defining an imaging area of the MR imaging apparatus.

Abstract: A method of accounting for the movement of the lungs during an endoscopic procedure such that a previously acquired image may be dynamically registered with a display showing the position of a locatable guide. After an initial image set is acquired, an area of interest is identified and the movement thereof due to breathing is mathematically modeled. Patient movement sensors are then used to provide information on the patient's breathing patterns. This information is entered into the mathematical model in order to update the registration between the image set and a display showing the position of the locatable guide.

Abstract: A stereo-imaging device that operates by translating a single lens in front of an exposed imaging sensor, or translating one of the objective lens group for higher image quality. The device and method is used as a surgical instrument guide. An objective lens with a translating lens part can directly attached in front of a camera with an exposed sensor or an endoscopic circuit with an exposed imaging fiber bundle surface to capture/record the image shift generated by the lens translation. The stereo-imaging device can realize a camera which can swing back and forth from regular 2D image capturing mode to the stereo mode to capture images for 3D viewing, or a switchable stereo endoscope without size increases of multiple imaging systems to be used for periodical 3D inspections.

Abstract: The present disclosure provides systems and methods for retrieving an implantable device. An implantable device includes a casing, and a marker coupled to the casing, wherein the marker includes a detectable material encased in a biocompatible material, and wherein the marker facilitates accurately locating and retrieving the implantable device after implantation in a patient.

Abstract: A device and method for bioimpedance spectrography corrects for breathing artifacts. A breathing signal is used in conjunction with an impedance signal to adjust for a point in time within a respiratory cycle of a user at which the measurements are made. The correction allows the device to characterize tissue parameters accurately with fewer measurement points.

Abstract: The present invention relates to apparatus (10) for determining a respiration volume signal from a subject (12), comprising a processing unit (28) for receiving image data (26) detected from a field of view (42) and for determining an alternating signal (S) including vital sign information (R) of the subject (12) from the image data (26), an analysis unit (30) for determining at least one characteristic parameter (A) corresponding to a respiration parameter of the subject (12) on the basis of the alternating signal (S), a calibration unit (32) for determining a calibration value (V1, V2) on the basis of a breathing volume measured during inhale and/or exhale of the subject (12) by means of an airflow or an air volume measurement, and a calculation unit (34) for calculating the respiration volume of the subject (12) on the basis of the calibration value (V1, V2) and the at least one characteristic parameter (A).

Abstract: A method and system for generating a three-dimensional scan of an object using a handheld scanner is disclosed. The method involves obtaining images of the object from a successive plurality of handheld scanner positions with respect to the object, and processing the images to generate a respective 3D frame for each of the plurality of handheld scanner positions. Each 3D frame includes data representing locations of a plurality of 3D points on a surface of the object. The method further involves comparing each successive 3D frame with at least one preceding 3D frame, determining whether a result of the comparison meets a correspondence criterion associated with generation of a 3D representation of the surface of the object, and initiating a recovery process when the correspondence criterion is not met.

Abstract: Apparatus and methods are described, including apparatus for use with a subject who shares a bed with a second person. A motion sensor detects motion of the subject and motion of the second person, and generates a motion signal in response thereto. A control unit identifies components of the motion signal that were generated in response to motion of the subject, by distinguishing between components of the motion signal that were generated in response to motion of the subject, and components of the motion signal that were generated in response to motion of the second person. The control unit analyzes the components of the motion signal that were generated in response to motion of the subject and generates an output in response thereto. Other applications are also described.

Abstract: A screening device for conducting a tone audiometry includes a tone generator, an input device, and a controller device. The controller device is arranged to repeatedly perform: selecting a test stimulus from a group of test stimuli; applying the selected test stimulus to a test person; receiving via the input device from the test person a response indicating which test stimulus was heard by the test person; and adjusting an intensity according to the received response for selecting a next test stimulus. The group of test stimuli includes (i) no tone at all, (ii) a single tone with a first frequency and a first given intensity, and (iii) a multitude of tones of a second frequency and a second given intensity. The second frequency is higher than the first frequency and the multitude of tones have a duration shorter than the duration of the single tone.

Abstract: A method including obtaining a first electrocardiography [“ECG”] reading from a test subject when the test subject is believed to not suffer from blood volume loss and obtaining a second ECG reading from the test subject when the test subject is in an unknown condition regarding blood volume loss. The first ECG reading and the second ECG reading are obtained using the same electrode positions on the test subject and include sets of ECG signals which, based on experimental data, respond to small decrease in blood volume by a statistically significant strength decrease. If the second ECG reading exhibits a statistically significant strength decrease compared with the first ECG reading, an alert condition is raised, which indicates potential small decrease in blood volume. The method can be embodied as a stand-alone ECG apparatus or as an add-on unit to an ECG apparatus.

Abstract: The present disclosure relates to noninvasive methods, devices, and systems for measuring various blood constituents or analytes, such as glucose. In an embodiment, a light source comprises LEDs and super-luminescent LEDs. The light source emits light at least wavelengths of about 1610 nm, about 1640 nm, and about 1665 nm. In an embodiment, the detector comprises a plurality of photodetectors arranged in a special geometry comprising one of a substantially linear substantially equal spaced geometry, a substantially linear substantially non-equal spaced geometry, and a substantially grid geometry.

Abstract: The present disclosure generally relates to methods of using near infrared radiation, such as from a near infrared spectroscopy device, to monitor physical activity in a person. In one aspect, a method of measuring physiological parameters is provided. The method further includes determining a NIRS-derived measure of a tissue of a person using near infrared spectroscopy over a time period, associating the NIRS-derived measure to the time period to determine a function-related change, and associating the function-related change to a biomechanical function.

Abstract: A flexible, body-mountable analyte sensing device includes a flexible substrate configured for mounting to skin of a living body. The sensing device additionally includes optical fiber attached to the flexible substrate and configured to penetrate the skin such that an analyte-sensitive substance disposed on the end of the optical fiber can detect an analyte in interstitial fluid. A color, fluorescence intensity, or other optical property of the analyte-sensitive substance is related to the concentration or other property of the analyte. Light reflected, scattered, fluorescently emitted, or otherwise emitted from the analyte-sensitive substance is transmitted via the optical fiber and detected by a light sensor on the flexible substrate. Such emitted light can be emitted in response to illumination of the analyte-sensitive substance via the optical fiber. The sensing device is configured to wirelessly indicate detected concentrations or other information about the analyte in the interstitial fluid.

Abstract: Body-mountable devices are provided to detect the presence or status of a tumor in a body by detecting one or more properties of a probe located in subsurface vasculature of the body. A wearable body-mountable device can be worn for a protracted period of time to detect a probe in the vasculature at low concentrations and/or at low rates. A body-mountable device can detect properties of the probe that are indicative of whether the probe has interacted with a tumor of the body and determine the presence or status of a tumor in the body based on such detected properties. Additionally or alternatively, the probe could be introduced into the body as a probe aggregate and released from if the probe aggregate is absorbed by a tumor. The presence of released probes could be detected to determine a presence or status of a tumor in the body.

Abstract: An apparatus for insertion of a medical device in the skin of a subject is provided, as well as methods of inserting medical devices.

Abstract: An apparatus includes a housing, a fluid reservoir, a flow control mechanism, and an actuator. The housing defines an inner volume and has an inlet port that can be fluidically coupled to a patient and an outlet port. The fluid reservoir is disposed in the inner volume to receive and isolate a first volume of a bodily-fluid. The flow control mechanism is rotatable in the housing from a first configuration, in which a first lumen places the inlet port is in fluid communication with the fluid reservoir, and a second configuration, in which a second lumen places the inlet port in fluid communication with the outlet port. The actuator is configured to create a negative pressure in the fluid reservoir and is configured to rotate the flow control mechanism from the first configuration to the second configuration after the first volume of bodily-fluid is received in the fluid reservoir.

Abstract: A lancing device with a depth-adjustment mechanism including an adjustably-positioned stop surface, a movable control member operably coupled thereto, and a resiliently deflectable leg that engages the stop surface and a lancet carrier to provide a soft stop for the lancet carrier. The lancet carrier deflects the leg in a forward phase of the lancing stroke, and then the leg contacts the stop surface to stop the forward motion of the lancet carrier at an extended lancing position. The stop surface can be adjustably positioned so that different portions thereof are engaged to stop the lancet carrier at deeper or shallower positions. In example embodiments, the depth-adjustment mechanism includes a rotary dial and an extension arm of the leg, with the dial including a rotary wheel and a rotary shaft extending axially therefrom, the wheel forming the movable adjustment member, and the shaft forming the adjustably positioned stop surface.

Abstract: A method of assessing the likelihood that an individual has impulse control disorder. The individual is provided with an actuator, and instructed to actuate the actuator as an acknowledgement of when the individual has completed a reward task. Actuation of the actuator is monitored and recorded. An automated diagnosis of ICD is produced and output, wherein a greater degree of actuation of the actuator by the individual is taken to indicate a greater likelihood that the individual has impulse control disorder.

Abstract: A device for evaluation of suicide risk of a person. A measuring unit measures electrodermal activity in fingers of the person to detect depressed persons who are at risk for suicide. The measuring unit is arranged to transmit a sound signal or tone to the person and to provide a signal for analysis of the electrodermal activity from the person. A measuring module measures orientation reactions in the form of blood volume variations of the person, preferably by a phtophletysmographic method peripherally in the fingers and/or centrally in the frontal lobe of the brain through the forehead, and changes in the pulse rate of the test person.

Abstract: A cognitive ability level identification device is disclosed. The device is configured to present cognitive test to a user and to measure the user's response to the test. When the user fails the test, the device is configured to prevent the user from operating equipment and/or take any subsequent action, activity or process or to prevent the user from entering secured locations due to poor cognitive performance. A method for evaluating the user's cognitive performance is disclosed, by presenting to the user cognitive tests and comparing the user's actual performance to pre acquired cognitive performance baseline.