Device for testing a person's attention
First Claim
1. Device for testing a person'"'"'s attention, comprising:
- speech memory means for generating stimuli, and means for reading said stimuli out at simultaneous time intervals from said speech memory means;
auditory stimulus generator means for rendering said stimuli audible to the person being tested and including loud-speaker or headphone means providing two channels for separate transmissions of sounds to the ears of said person, and a control unit including a switch unit by means of which either the same or different stimuli can be produced in the two channels;
key-press means adapted to be operated by the person being tested upon recognition of a specified target stimulus for delivering a corresponding key-press impulse;
recording means for sensing said key-press impulse and correlating the same with said target stimuli as well as with such stimuli as are different from said target stimuli; and
time control means for producing time window signals of predetermined time intervals at each delivery of a target stimulus, and gating circuit means for combining said time window signals with said key-press impulses.
2 Assignments
0 Petitions
Accused Products
Abstract
In a device to test a person'"'"'s attention or concentration ability, a series of digits is read out at a pre-determined, alterable speed by a speech recorder (62) and delivered by a speech generator (66) to headphones (10). The subject must press a button (16) every time a target (e.g. "0") is heard. Also every time a "0" is heard, a control unit (50) produces a window signal which is connected by an error logic circuit (70) to the key-press impulse. If the reaction is correct, the key-press impulse will be within the time window, and a counter (74) will accordingly increase the number of the "score". Any key-press impulse falling outside the time window is an omission error to be counted by another counter (75). The counter status is then analyzed to calculate an error index (IE).
-
Citations
17 Claims
-
1. Device for testing a person'"'"'s attention, comprising:
-
speech memory means for generating stimuli, and means for reading said stimuli out at simultaneous time intervals from said speech memory means; auditory stimulus generator means for rendering said stimuli audible to the person being tested and including loud-speaker or headphone means providing two channels for separate transmissions of sounds to the ears of said person, and a control unit including a switch unit by means of which either the same or different stimuli can be produced in the two channels; key-press means adapted to be operated by the person being tested upon recognition of a specified target stimulus for delivering a corresponding key-press impulse; recording means for sensing said key-press impulse and correlating the same with said target stimuli as well as with such stimuli as are different from said target stimuli; and time control means for producing time window signals of predetermined time intervals at each delivery of a target stimulus, and gating circuit means for combining said time window signals with said key-press impulses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
Specification