ArticleCerebral cortex (New York, N.Y. : 1991)2020
Impaired Fixation-Related Theta Modulation Predicts Reduced Visual Span and Guided Search Deficits in Schizophrenia.
Article in Cerebral cortex (New York, N.Y. : 1991), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 12 citations in OpenAlex.
- Seeing things in psychosis: Reduced theta power in early neural responses to ambiguous visual stimuli predicts perceptual distortions.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2025Article
- Fixational eye movements and their associated evoked potentials during natural vision are altered in schizophrenia.Schizophrenia research. Cognition · 2024Article
- Lower-level oculomotor deficits in schizophrenia during multi-line reading: Evidence from return-sweeps.Quarterly journal of experimental psychology (2006) · 2024Article
- Altered excitatory and inhibitory ionotropic receptor subunit expression in the cortical visuospatial working memory network in schizophrenia.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Article
- Temporal imprecision of phase coherence in schizophrenia and psychosis-dynamic mechanisms and diagnostic marker.Molecular psychiatry · 2024Review
- Unveiling the Associations between EEG Indices and Cognitive Deficits in Schizophrenia-Spectrum Disorders: A Systematic Review.Diagnostics (Basel, Switzerland) · 2022Review
- Neurophysiological, Oculomotor, and Computational Modeling of Impaired Reading Ability in Schizophrenia.Schizophrenia bulletin · 2021Article
- A roadmap for development of neuro-oscillations as translational biomarkers for treatment development in neuropsychopharmacology.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020Review
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
During normal visual behavior, individuals scan the environment through a series of saccades and fixations. At each fixation, the phase of ongoing rhythmic neural oscillations is reset, thereby increasing efficiency of subsequent visual processing. This phase-reset is reflected in the generation of a fixation-related potential (FRP). Here, we evaluate the integrity of theta phase-reset/FRP generation and Guided Visual Search task in schizophrenia. Subjects performed serial and parallel versions of the task. An initial study (15 healthy controls (HC)/15 schizophrenia patients (SCZ)) investigated behavioral performance parametrically across stimulus features and set-sizes. A subsequent study (25-HC/25-SCZ) evaluated integrity of search-related FRP generation relative to search performance and evaluated visual span size as an index of parafoveal processing. Search times were significantly increased for patients versus controls across all conditions. Furthermore, significantly, deficits were observed for fixation-related theta phase-reset across conditions, that fully predicted impaired reduced visual span and search performance and correlated with impaired visual components of neurocognitive processing. By contrast, overall search strategy was similar between groups. Deficits in theta phase-reset mechanisms are increasingly documented across sensory modalities in schizophrenia. Here, we demonstrate that deficits in fixation-related theta phase-reset during naturalistic visual processing underlie impaired efficiency of early visual function in schizophrenia.
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