Abstract: A neurovascular coupling analytical method based on an electroencephalogram and functional near-infrared spectroscopy includes: S100: acquiring an electroencephalogram signal and a brain hemodynamic signal; S110: extracting an event-related potential signal from the electroencephalogram signal; S120: extracting a time characteristic from the event-related potential signal; S130: extracting a hemodynamic response function from the brain hemodynamic signal; S140: extracting an amplitude characteristic and time characteristics from the hemodynamic response function; and S150: analyzing influence of the time characteristic of the event-related potential signal on the amplitude characteristic and the time characteristics of the hemodynamic response function to obtain a coupling result. The time characteristic of the event-related potential signal is a delay.

Abstract: The present technology provides spontaneous capillary flow devices for patterning walls on a hydrophilic substrate. In some embodiments, the devices include rails having a first end portion for receiving a flowable material, a second end portion opposite the first end portion, and a base portion having a flow surface extending between the first end portion and the second end portion. The flow surface can face the hydrophilic substrate and define a flow path. When the flowable material is released into the first end portion, the flowable material flows via spontaneous capillary flow from the first end portion to the second end portion along the flow path to create a partition on the hydrophilic substrate.

Abstract: The present technology provides spontaneous capillary flow devices for patterning walls on a hydrophilic substrate. In some embodiments, the devices include rails having a first end portion for receiving a flowable material, a second end portion opposite the first end portion, and a base portion having a flow surface extending between the first end portion and the second end portion. The flow surface can face the hydrophilic substrate and define a flow path. When the flowable material is released into the first end portion, the flowable material flows via spontaneous capillary flow from the first end portion to the second end portion along the flow path to create a partition on the hydrophilic substrate.