1970
DOI: 10.1037/h0029655
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Physiological concomitants of behavioral indexes in schizophrenia.

Abstract: Measures of heart rate, respiration rate, galvanic skin response, and electromyogram were obtained from 28 schizophrenic patients and 14 controls under rest and stress conditions. Patients had been classified as either chronic or acute on the basis of the Phillips Premorbid Rating Scale. Depending on the measure, chronic schizophrenic patients were either "overaroused" or ''underaroused" as compared to control Ss; acute schizophrenic patients fell in between chronic schizophrenics and controls.

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Cited by 30 publications
(10 citation statements)
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“…Though the difference level was not significant, the majority of ‘HC SCR-non’ in the present study were females (Chi-square test df =1, χ 2 = 2.608, p = 0.106). While many earlier studies included more male than female subjects (Bernstein, 1967, 1970; Dawson et al, 1992; Dawson et al, 1994; Fenz & Velner., 1970; Gruzelier et al, 1981; Schell et al, 2005), we recruited both genders equally in this study.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Though the difference level was not significant, the majority of ‘HC SCR-non’ in the present study were females (Chi-square test df =1, χ 2 = 2.608, p = 0.106). While many earlier studies included more male than female subjects (Bernstein, 1967, 1970; Dawson et al, 1992; Dawson et al, 1994; Fenz & Velner., 1970; Gruzelier et al, 1981; Schell et al, 2005), we recruited both genders equally in this study.…”
Section: Discussionmentioning
confidence: 99%
“…In contrast, all healthy controls responded and then habituated. While multiple studies have reported greater SCR frequency in the patients with schizophrenia than in healthy controls (Bernstein, 1967, 1970; Fenz and Velner, 1970; Gruzelier et al, 1981; Zahn, 1964; Zahn et al, 1968; Zahn et al, 1981), others have replicated the finding of a subgroup of patients who are SCR “non-responders.” According to recent reviews, approximately 40 to 50% of patients with schizophrenia are SCR non-responders (Bernstein et al, 1982; Dawson and Nuechterlein, 1984; Dawson et al, 2000; Öhman, 1981). Though SCR non-response is also observed in patients with other mental illness including depression, as well as in some healthy controls in some situations, the underlying physiology or pathology associated with the responder/ non-responder distinction seems to be different in schizophrenia, depression and healthy controls (Levinson, 1991; Öhman, 1981).…”
Section: Introductionmentioning
confidence: 99%
“…Heart-rate differences between schizophrenics and normals have been reported consistently, both drug-free patients (Zahn et al (1968), Kelly & Walter (1969) and those taking phenothiazines having higher heart-rates ( Fenz & Welner (1970), Gruzelier & Venables (1975)); this elevation was maintained after withdrawal of medication (Spohn et al (1971)). Phenothiazine medication causes increased heart-rate and alters electrodermal activity ( Tecce & Cole (1972)).…”
mentioning
confidence: 87%
“…Abnormal patterns of habituation are well established in schizophrenia and include complete failures to habituate, slow habituation, and failures to register stimuli at all. Fenz and Velner (1970), in a literature review, concluded that schizophrenics fall anywhere along the continuum of arousal, although usually at the extremes. Some show sudden shifts in autonomic activity, now being overaroused and then underaroused.…”
Section: Some Consequences Of Central Integrative Failurementioning
confidence: 99%