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.
Specific 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.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.