A5039091462- Neural dynamics and brain function
- EEG and Brain-Computer Interfaces
- Functional Brain Connectivity Studies
- Neural and Behavioral Psychology Studies
- Neuroscience and Music Perception
- Biochemical Analysis and Sensing Techniques
- Olfactory and Sensory Function Studies
- Advanced Chemical Sensor Technologies
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Attention Deficit Hyperactivity Disorder
- Memory Processes and Influences
New York State Psychiatric Institute
2006-2013
New York Psychoanalytic Society and Institute
2006-2013
Columbia University
2009
The heterogeneity of schizophrenia remains an obstacle for understanding its pathophysiology. Studies using a tone discrimination screening test to classify patients have found evidence 2 subgroups having either specific deficit in verbal working memory (WM) or deficits both and nonverbal memory. This study aimed (a) replicate larger samples differences between these auditory WM; (b) evaluate their performance on tests explicit sustained attention; (c) determine the relation WM...
Abstract Existing 67‐channel event‐related potentials, obtained during recognition and working memory paradigms with words or faces, were used to examine early visual processing in schizophrenia patients prone auditory hallucinations ( AH , n = 26) not NH 49) healthy controls HC 46). Current source density CSD ) transforms revealed distinct, strongly left‐ (words) right‐lateralized (faces; N 170) inferior‐temporal 1 sinks (150 ms each group. was quantified by temporal PCA of peak‐adjusted...
Abstract To disentangle subprocesses of verbal working memory deficits in schizophrenia, long EEG epochs (>10 s) were recorded from 13 patients and 17 healthy adults during a visual word serial position test. ERP generator patterns summarized by temporal PCA reference‐free current source density (CSD) waveforms to sharpen 31‐channel topographies. Patients showed poorer performance reduced left inferior parietotemporal P3 source. Build‐up mid‐frontal negative slow wave (SW) controls item...
To better characterize neurophysiologic processes underlying olfactory dysfunction in schizophrenia, nose–referenced 30–channel electroencephalogram was recorded from 32 patients and 35 healthy adults (18 18 male) during detection of hydrogen sulfide (constant-flow olfactometer, 200 ms unirhinal exposure). Event-related potentials (ERPs) were transformed to reference–free current source density (CSD) waveforms analyzed by unrestricted Varimax–PCA. Participants indicated when they perceived a...