Exploring the short term visual store in schizophrenia using the attentional blink

Journal of Psychiatric Research
Jonathan K WynnMichael F Green

Abstract

Schizophrenia patients exhibit numerous deficits on visual processing tasks, ranging from very early stages of visual processing (e.g., backward masking) to the later working memory stages (e.g., delayed match-to-sample, N-back). However, little is known about deficits in an intermediate stage of visual information processing, namely short term visual memory (STVM). The attentional blink (AB) paradigm is considered to be a valid way to assess the STVM, and recent studies have reported AB deficits in schizophrenia. However, it is not clear whether the reported AB deficit in schizophrenia patients is due to their increased susceptibility to backward masking or increased vulnerability in the STVM. In this study we first found poorer performance in the AB task in 37 schizophrenia patients compared to 26 normal controls. To examine the effects of increasing and decreasing mask strength on AB performance in patients and controls, we next systematically varied the masking effect by varying the length of the distracters immediately following the targets. The manipulation had relatively little effect on the patient--control differences and patients continued to show an enhanced AB effect across conditions. The findings suggest that the ...Continue Reading

Citations

Apr 27, 2010·Schizophrenia Bulletin·John Gerald Taylor
Jul 24, 2012·Attention, Perception & Psychophysics·Mary H MacLean, Karen M Arnell
Feb 21, 2013·Journal of Abnormal Psychology·Gregory P StraussJames Gold
Jul 10, 2012·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Kristopher I MathisMichael F Green
Jan 9, 2016·Journal of Anxiety Disorders·Aileen M Echiverri-CohenJawad Husain
Jan 30, 2013·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Rolf VerlegerRebekka Lencer
Jun 10, 2014·Schizophrenia Research·Julie Walsh-MessingerDolores Malaspina
May 10, 2011·Journal of Psychiatric Research·Kristopher I MathisMichael F Green
Sep 8, 2010·Behavioural Brain Research·Corinna Haenschel, David E J Linden
Feb 24, 2012·PLoS Computational Biology·Johannes RüterMichael H Herzog
May 16, 2019·PLoS Computational Biology·Karim RajaeiSeyed-Mahdi Khaligh-Razavi
Feb 6, 2018·PloS One·Mika Koivisto, Simone Grassini

Related Concepts

Mental Concentration
Immediate Recall
Brief Psychiatric Rating Scale
Pattern Recognition, Visual
Perceptual Masking
Schizophrenia
Schizophrenic Psychology
Serial Learning

Related Feeds

Antipsychotic Drugs

Antipsychotic drugs are a class of medication primarily used to manage psychosis (including delusions, hallucinations, paranoia or disordered thought), principally in schizophrenia and bipolar disorder. Discover the latest research on antipsychotic drugs here