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Gamma frequency-range abnormalities to auditory stimulation in schizophrenia.
These data provide new information on selective deficits in early-stage sensory processing in schizophrenia, a failure to support the entrainment of intrinsic gamma-frequency oscillators.
Abnormal Neural Synchrony in Schizophrenia
- K. Spencer, P. Nestor, M. Niznikiewicz, D. Salisbury, M. Shenton, R. McCarley
- Psychology, MedicineThe Journal of Neuroscience
- 13 August 2003
Findings support the hypothesis that schizophrenia is associated with impaired neural circuitry demonstrated as a failure of gamma band synchronization, especially in the 40 Hz range.
DTI and MTR abnormalities in schizophrenia: Analysis of white matter integrity
Cingulate fasciculus integrity disruption in schizophrenia: a magnetic resonance diffusion tensor imaging study
Uncinate fasciculus findings in schizophrenia: a magnetic resonance diffusion tensor imaging study.
These findings demonstrate the importance of investigating white matter tracts in vivo in schizophrenia and support the hypothesis of a disruption in the normal pattern of connectivity between temporal and frontal brain regions in schizophrenia.
Neural synchrony indexes disordered perception and cognition in schizophrenia.
- K. Spencer, P. Nestor, R. McCarley
- Psychology, MedicineProceedings of the National Academy of Sciences…
- 7 December 2004
It is reported that, in both healthy controls and schizophrenia patients, visual Gestalt stimuli elicit a gamma-band oscillation that is phase-locked to reaction time and hence may reflect processes leading to conscious perception of the stimuli, but the frequency of this oscillation is lower in schizophrenics than in healthy individuals.
Connectivity among semantic associates: An fMRI study of semantic priming
Altered orbitofrontal sulcogyral pattern in schizophrenia.
- Motoaki Nakamura, P. Nestor, M. Shenton
- Psychology, MedicineBrain : a journal of neurology
- 1 March 2007
Evidence of altered distribution of orbitofrontal sulcogyral pattern in schizophrenia is provided, possibly reflecting a neurodevelopmental aberration in schizophrenia.
Mental disorder and violence: personality dimensions and clinical features.
- P. Nestor
- PsychologyThe American journal of psychiatry
- 1 December 2002
The hypothesis that these four fundamental personality dimensions operate jointly, and in varying degrees, as clinical risk factors for violence among groups with these classes of mental disorders is supported.
Left auditory cortex gamma synchronization and auditory hallucination symptoms in schizophrenia
- K. Spencer, M. Niznikiewicz, P. Nestor, M. Shenton, R. McCarley
- Psychology, MedicineBMC Neuroscience
- 20 July 2009
These findings suggest that differential neural circuit abnormalities may be present in the left and right auditory cortices in schizophrenia and provide further support for the hypothesis that hallucinations are related to cortical hyperexcitability, which is manifested by an increased propensity for high-frequency synchronization in modality-specific cortical areas.