Abstract
Japan Society for Higher Brain Dysfunction (founded as Japanese Society of Aphasiology in 1977) developed the two standardized test batteries to evaluate the impairment of generalized attention and spontaneity in clinical session. The neuropsychological batteries ware named Clinical Assessment for Attention (CAT) and Clinical Assessment for Spontaneity (CAS). CAT and CAS include the seven subtests and five subscales, respectively. CAT and CAS demonstrated substantial inter-rater and test-retest reliabilities and the distinct aging effect specifically in CAT. The two batteries revealed the significant differences between the normal subjects and brain-damaged patients on the performances of the most neuropsychological subtasks or subscales to measure attentional deficits and aspontaneity. Using CAT and CAS in clinical practice, we are able to precisely detect and evaluate the impairments of attention and volition.
