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This study examined the hypothesis that negative symptoms are associated with abnormalities of smooth pursuit in schizophrenic patients. The pursuit eye movements of 25 subjects with schizophrenia and 25 matched normal control subjects were recorded using an infrared eye tracking system and quantified using the log of signal-to-noise ratio (1n S/N). The severity of negative symptoms within the schizophrenic group was rated using the Scale for the Assessment of Negative Symptoms. Previous findings of pursuit abnormalities among schizophrenic patients as a group were replicated. There was, however, no significant association between the eye tracking dysfunction and the severity of negative symptoms.
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
September 1991,
Journal of psychiatry & neuroscience : JPN,
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
March 2005,
Schizophrenia research,
P Kelly, and
C Rennie, and
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J Anderson, and
A Howson, and
R Meares
September 1993,
Biological psychiatry,
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
February 2001,
Psychiatry research,
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
February 1995,
Biological psychiatry,
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
May 1985,
Psychiatry research,
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
September 2007,
Experimental brain research,
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
February 1980,
Perceptual and motor skills,
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
December 1976,
Archives of general psychiatry,
P Kelly, and
C Rennie, and
E Gordon, and
J Anderson, and
A Howson, and
R Meares
September 1998,
Archives of general psychiatry,
