ABSTRACT
Heroin addicts (n = 100) and healthy controls (n = 100) were examined for their information processing ability at iconic (100 ms, 125 ms) as well as relatively deeper (250 ms, 500 ms) levels. Subjects were asked to identify briefly exposed photographs of familiar objects through an electronic tachistoscope. Addicts showed significant impairment of visual information processing at iconic but not at deeper levels.
Subject(s)
Heroin Dependence/psychology , Learning , Adult , Humans , Male , Reaction Time , Reference Values , ThinkingABSTRACT
Patients with allergy (n = 50), juvenile cancer (n = 50), and schizophrenia (n = 37), and nonpatient controls (n = 200) were asked to indicate their hand preferences on a 7-point scale (1 = left always, 7 = right always) for the 32-item Waterloo Handedness Questionnaire. Except for patients with schizophrenia, who exhibited a higher incidence of mixed hand preference, groups showed a clear rightward bias. Further analyses suggested that mixed hand preference in schizophrenia was evident more often for unskilled than skilled hand activities.
Subject(s)
Functional Laterality/physiology , Hypersensitivity/immunology , Neoplasms/immunology , Schizophrenia/immunology , Adolescent , Adult , Child , Extrapyramidal Tracts/physiopathology , Female , Humans , Immune Tolerance/immunology , Immunologic Deficiency Syndromes/immunology , Male , Motor Neurons/physiology , Motor Skills/physiology , Psychomotor Performance/physiology , Pyramidal Tracts/physiopathology , Reference Values , Risk FactorsABSTRACT
Patients with general anxiety disorder (GAD), anxiety prone subjects, and normal controls (n=30, N=90) were subjected to happy and sad mood induction conditions using facial expressions of emotion of varied intensity. Following mood induction, subjects were required to judge their mood state on two scales: the Positive and Negative Affect Scale and the Emotional Self Rating Scale. In general, the anxiety groups showed more sensitivity to the sad mood induction condition. However, the anxiety groups had a higher subjective rating for positive than negative emotions during the happy mood induction condition. These findings suggest the efficacy of the mood induction procedures in anxiety disorders.
