[HTML][HTML] Aberrant cortical connectivity during ambiguous object recognition is associated with schizophrenia

VJ Pokorny, TD Espensen-Sturges, PC Burton… - Biological Psychiatry …, 2021 - Elsevier
Background Dysfunctional connectivity within the perceptual hierarchy is proposed to be an
integral component of psychosis. The fragmented ambiguous object task was implemented …

Impact of reduced‐dimensionality independent components analysis on event‐related potential measurements

VJ Pokorny, SR Sponheim, E Rawls - Psychophysiology, 2023 - Wiley Online Library
Independent components analysis (ICA) is an effective and ubiquitous tool for cleaning EEG.
To reduce computation time, many analysis pipelines decrease EEG dimensionality prior to …

Neural indicator of altered mismatch detection predicts atypical cognitive-perceptual experiences in psychotic psychopathology

VJ Pokorny, SR Sponheim - Schizophrenia bulletin, 2022 - academic.oup.com
Background Atypical auditory processing (AAP) in psychotic psychopathology is evident in
early (N1), mid-latency (P2/N2/mismatch negativity), and late (P3) neural responses. The …

Self-reported perceptual aberrations in psychosis map to event-related potentials and semantic appraisals of objects.

JM Longenecker, VJ Pokorny, SS Kang… - Journal of abnormal …, 2021 - psycnet.apa.org
Psychotic disorders have been associated with visual deficits and deviant semantic
processing, making it unclear whether object detection abnormalities in psychosis originate …

[HTML][HTML] Perceptual mechanisms of visual hallucinations and illusions in psychosis

SD Klein, CA Olman, SR Sponheim - Journal of psychiatry and …, 2020 - ncbi.nlm.nih.gov
Psychosis has been associated with neural anomalies across a number of brain regions and
cortical networks. Nevertheless, the exact pathophysiology of the disorder remains unclear …

Behavioral Apophenia and Dimensions of Psychoticism in Adolescents with and without Mood Disorders

M Reinke, JM Longenecker, L Chowdhury, M Thai… - …, 2023 - karger.com
Apophenia is the tendency to falsely detect meaningful relationships and may indicate
susceptibility to more extreme expressions on the psychotic spectrum. This pilot investigated …

[PDF][PDF] Object Recognition in Psychosis: Altered Connectivity Between Levels of the Visual Perceptual Hierarchy

S Bansal - Biological Psychiatry: Cognitive Neuroscience and …, 2021 - researchgate.net
Object recognition is a process in which visual input is ascribed a meaningful interpretation
that is made accessible to perceptual awareness. Intact discernment of objects is thus …