The sensory stimulus does not have to be a visual one, though. Reaction time can be measured as a response to other sensory stimuli, too, such as a sound or a touch. In fact, reaction times to sound have been shown to be faster, on average, than reaction times to visual stimuli.eaction time can be measured as a response to other sensory stimuli, too, such as a sound or a touch. In fact, reaction times to sound have been shown to be faster, on average, than reaction times to visual stimuli.
Body Dysmorphic Disorder. Body dysmorphic disorder (BDD) is a distinct mental disorder in which a person is preoccupied with an imagined physical defect or a minor defect that others often cannot see.
By Psych Central Staff ~ 1 min read. Body Dysmorphic Disorder is a mental disorder characterized by a a preoccupation with a defect in the personâs physical appearance. The defect is either imagined, or, if a slight physical anomaly is present, the individualâs concern is markedly excessive.pecific Symptoms of Body Dysmorphic Disorder. 1  Preoccupation with an imagined defect in appearance. 2  If a slight physical anomaly is present, the personâs concern is markedly excessive. 3  The preoccupation causes clinically significant distress or impairment in social, occupational, or other important areas of functioning.