Foraging Interactive D prime, or in short, FInD, is another generalizable method to measure a patient’s ability to detect stimuli from the background or to discriminate different stimuli from one another. FInD’s underlying principle is based on Signal Detection Theory and asks the user to find the signals that are randomly distributed across the cells by clicking on them. FInD is self-administered and adaptive, therefore homing in on the threshold range of each user individually. The analysis software delivers the results instantaneously.
Visual functions examined with FInD
FInD is currently able to measure the following visual functions: color detection, color discrimination, depth perception, contrast vision, contrast sensitivity function, threshold versus contrast vision (‘Dipper Function’), equivalent noise for motion, motion coherence, pattern coherence, spatio-temporal contrast sensitivity (‘Flicker’ Sensitivity), face detection, and discrimination.