Perceptual Dysfunction as a Determinant of Schizophrenic Word Associations

Electroencephalographic Spectra and Reaction Time in Disorders of Higher Nervous Function

“…The control profile showed no significant trend, the profile for recalled clues showed a significant cubic and quintic component, that for recognized clues showed a significant cubic component, and the clues of which the subject was unaware showed no trend (5). These data suggest that awareness of the clue (as manifested by later recognition or recall) is reflected in a cardiac profile with a pronounced cubic component (two inflections); as such, the profile shows a good approximation to the cubic curves reported by Roessler et al (6) for cardiac response to random tones, and to the curves reported by Schwartz and Higgins (7) for cardiac reactions to a simple motor response or to its ideational equivalent. All four profiles show an accelerative component after stimulus onset; this component is followed by a decelerative drop.…”

“…This pattern is repeated for several ejaculations and after each, the postejaculatory interval (PEI) grows longer. The female generally does not hop, dart, and ear-wiggle during the PEI, whereas these behaviors are frequent in the copulatory series leading to ejaculation (6). The change in the behavior of the females toward refractory males may be influenced by the ultrasonic postejaculatory "song" of the male, the subject of this report.…”

“…(i) Although the irregularities of the EEG that occur in nearly half of the subjects with acute psychoses are of a nonspecific type, recordings from subcortical electrodes in such individuals have demonstrated spike activity related to disturbances in mental state (5). (ii) One of the few consistent objective psychologic measures in patients with schizophrenia is the considerable variability of reaction time, particularly in the processing of relatively complex verbal information (6). (iii) When deviations of both EEG and consciousness are more severe, as during epileptic absence, there is an unmistakable association between reaction time and abnormal discharges recorded in scalp or subcortical EEG's.…”

Auditory Perception in Schizophrenia: A Second Study of the Intonation Test

“…The patients required 8dB more signal intensity than the controls. Moon et al (1968) used word lists with the instruction merely to repeat the words. They found that male schizophrenics (subtypes were not stated) misheard significantly more words than control subjects, who were matched with the former for age, intelligence, education, verbal ability and auditory acuity.…”

Bilateral auditory acuity of schizophrenic patients: effects of repeated testing, time of day and medication

“…Findings of higher than normal visual thresholds among schizophrenic patients (Mannuzza et al 1982) have recently cast doubts on this supposition, although it has been suggested that the effect is specific to vision and does not extend to other modalities (Zubin, 1980). On the other hand, there have been reports of an increased prevalence of hearing disorders in schizophrenic and paranoid psychoses, as compared with affective illness (see Cooper, 1979, for a review), and of impairments of auditory perception of stimulus words in schizophrenia (Moon et al 1968;Bull & Venables, 1974).…”