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Dec
2014

Patients with schizophrenia frequently exhibit motor deficits. However, to date, there are no studies comparing motor performance in first episode patients with schizophrenia and schizophrenia spectrum disorders (SSD; e.g.
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http://linkinghub.elsevier.com/retrieve/pii/S016517811400705
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Aug
2011

Reduced mismatch negativity (MMN) and P3a amplitudes are neurophysiological biomarkers for schizophrenia that index deviance detection and the orienting response, respectively. First-episode psychosis (FEP) patients show reduced amplitudes of the 'MMN/P3a complex', but it is unclear whether this occurs across the FEP spectrum.
Fifty-three young people (17-36 years) were assessed: 17 FEP affective-spectrum (bipolar disorder with psychotic features and major depressive disorder with psychotic features), 18 FEP schizophrenia-spectrum (schizophrenia, schizoaffective disorder, and schizophreniform disorder), and 18 healthy controls.

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Dec
1969

Neurological soft signs have been considered one of the promising neurological endophenotypes for schizophrenia. However, most previous studies have employed clinical rating data only. The present study aimed to examine the neurobiological basis of one of the typical motor coordination signs, the Fist-Edge-Palm (FEP) task, in patients with first-episode schizophrenia and their non-psychotic first degree relatives.

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Nov
2011

Empathy is a multidimensional construct that relies on affective and cognitive component processes. A few studies have reported impairments of both cognitive and affective empathy components in patients with schizophrenia. It is, however, not known whether these difficulties are already present at psychosis onset.

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Feb
2009

To investigate static and dynamic visuospatial working memory (VSWM) processes in first-episode psychosis (FEP) patients and explore the validity of such measures as specific trait markers of schizophrenia.
Twenty FEP patients and 20 age-, sex-, laterality- and education-matched controls carried out a dynamic and static VSWM paradigm. At 2-year follow up 13 patients met Diagnostic and Statistical Manual (of Mental Health Disorders)--Fourth Edition (DSM-IV) criteria for schizophrenia, 1 for bipolar disorder, 1 for brief psychotic episode and 5 for schizotypal personality disorder.

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