The spatial discrimination threshold (defined as the shortest distance interval at which two stimuli applied to the same part of the body can be recognized as spatially separate) and the temporal discrimination threshold (defined as the minimum interstimulus interval at which participants recognize a pair of tactile stimuli as temporally separate)
At 24:20, if we multiply 0.02 to number of letters correctly read, wouldn't a person who reads more letters have a higher score? Isn't lower logmar score better?