Abstract: This invention is a gateway for testing mental function comprising a portable structure that houses one or more mental function testers and an access control device that allows the user to enter a defined area based upon the result of the mental function test. The access control device may either directly control an exit from the gateway or it may dispense a portable indicator of the test results. The gateway may comprise one or more mental function testers that give the same or different tests. The invention also comprises methods of using the gateway, including the steps of assessing a user's mental function and operating the access control device depending upon the assessment. The latter step may comprise permitting the user access to an at-risk activity.

Abstract: A computer is provided along with a method for testing users for alertness and mental fitness. The system and method are usable wherever there is a risk to persons, property, or the environment from individuals not fit to operate machinery or enter an work area safely, or for testing a user for dementia or other neurological impairment. The testing methods resemble computer games, but they actually measure mental fitness and alertness rather than aptitude, ability, or intelligence. The disclosed basic test is general, simple and non-intellectual, and compatible with worldwide, multilingual use. Other tests are more specifically designed to test for the ability to perform certain occupational duties or types of activities. Tests which measure neurological impairment do involve some intellectual functions such as memory. The basic test preferably comprises a plurality of yes or no questions based upon graphical data displayed to the user.

Abstract: A special-purpose computer is provided along with a method for testing users for alertness and mental fitness before beginning work or a potentially dangerous activity. The system and method are usable wherever there is a risk to persons, property, or the environment from individuals not fit to operate machinery or enter an work area safely. The testing methods resemble computer games, but they actually measure mental fitness and alertness rather than aptitude, ability, or intelligence. The disclosed basic test is general, simple and non-intellectual, and compatible with worldwide, multilingual use. Other tests are more specifically designed to test for the ability to perform certain occupational duties or types of activities. The basic test preferably comprises a plurality of yes or no questions based upon graphical data displayed to the user. Each user's answers and performance are preferably maintained in strict confidence through storage only on a removable storage medium, such as a Smart Card.