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Titolo:
The effect of distraction on smooth pursuit eye movements: comparison of normal subjects with schizophrenic patients
Autore:
Nolte, A; Moser, A; Arolt, V; Kompf, D;
Indirizzi:
Univ Lubeck, Dept Neurol, D-23538 Lubeck, Germany Univ Lubeck Lubeck Germany D-23538 Dept Neurol, D-23538 Lubeck, Germany Univ Lubeck, Dept Psychiat, D-23538 Lubeck, Germany Univ Lubeck Lubeck Germany D-23538 ept Psychiat, D-23538 Lubeck, Germany
Titolo Testata:
NEURO-OPHTHALMOLOGY
fascicolo: 3, volume: 21, anno: 1999,
pagine: 147 - 155
SICI:
0165-8107(199905)21:3<147:TEODOS>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRACKING; DYSFUNCTIONS; ATTENTION; SPECIFICITY;
Keywords:
distraction; smooth pursuit; schizophrenic patients; eye movements;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Nolte, A Univ Lubeck, Dept Neurol, Ratzeburger Allee 160, D-23538 Lubeck, Germany Univ Lubeck Ratzeburger Allee 160 Lubeck Germany D-23538 Germany
Citazione:
A. Nolte et al., "The effect of distraction on smooth pursuit eye movements: comparison of normal subjects with schizophrenic patients", NEURO-OPHTH, 21(3), 1999, pp. 147-155

Abstract

Smooth pursuit eve movements (SPEM) made in response to 15 degrees/s and 30 degrees/s targets were studied in schizophrenic patients (DSM III-R and ICD 10 criteria) and normal controls using infrared photoelectric techniques. Tracking of the target was carried out without competing stimuli and while acoustic (click-noises, 80 dB, delivered binaural through headphones with5 Hz) and visual (Manhattan at night background) distractions were presented. As previously described, gain values of SPEM of schizophrenic patients were significantly reduced when compared to those of the control group. Smooth pursuit in both groups was impaired when tracking the target against a background as well as when an auditory distraction was present. In all distraction paradigms, gain was reduced to a similar extent in the schizophrenic group and normal controls. In addition, schizophrenic patients performed as well as normal controls on tests of sustained attention (continuous performance test, CPT). In conclusion, these results suggest that smooth pursuit dysfunction in schizophrenia may not be due to an increase in distractibility or a general deficit in sustained attention.

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Documento generato il 05/04/20 alle ore 00:51:43