The goal of this 5-year project is to discover large, specific attention-related deficits in patients with schizophrenia (SC) through a program of clinical research guided by basic science models of the role of attention in visual perception and visual working memory (WM). Deficits in attention are fundamental to SC, but the specific cognitive and neural mechanisms underlying the impairments remain largely undetermined. Recent cognitive/neuroscience studies of attention have yielded a broad theoretical framework, accompanied by a rich set of experimental paradigms that can isolate specific attention subsystems. The proposed research will translate these theoretical perspectives and experimental paradigms into a clinical research program that will use both behavioral and event-related potential methods to provide a theoretically motivated and highly specific description of attention deficits in SC. The application focuses on the role of attention in visual perception and WM (Aims 1 & 2) because these have received detailed analyses in the basic science literature and because the clinical literature provides evidence of deficits in these areas. To study the operation of attention in perception, Experiments 1 -5 will assess attentional functioning in the context of sensory detection, visual search, and object segregation. Experiments 6-10 test the hypothesis that patients have specific deficits in using attention to control the encoding of information into WM. The paradigms were chosen for their ability to isolate specific attention-related cognitive processes, yielding large, distinctive patterns of results in normal subjects, thereby increasing the opportunity to observe specific, interpretable deficits in SC. These data will provide new insight into the cognitive/neural systems that are impaired in SC, potentially clarifying the nature of the phenotype, providing new targets for pharmacological treatment, and elucidating the nature of normal attention.

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Research Project (R01)
Project #
5R01MH065034-04
Application #
6795139
Study Section
Special Emphasis Panel (ZMH1-NRB-W (02))
Program Officer
Heinssen, Robert K
Project Start
2001-09-27
Project End
2006-08-31
Budget Start
2004-09-01
Budget End
2005-08-31
Support Year
4
Fiscal Year
2004
Total Cost
$360,501
Indirect Cost
Name
University of Maryland Baltimore
Department
Psychiatry
Type
Schools of Medicine
DUNS #
188435911
City
Baltimore
State
MD
Country
United States
Zip Code
21201
Gaspelin, Nicholas; Luck, Steven J (2018) Inhibition as a potential resolution to the attentional capture debate. Curr Opin Psychol 29:12-18
Beck, Valerie M; Luck, Steven J; Hollingworth, Andrew (2018) Whatever you do, don't look at the...: Evaluating guidance by an exclusionary attentional template. J Exp Psychol Hum Percept Perform 44:645-662
Gaspelin, Nicholas; Luck, Steven J (2018) ""Top-down"" Does Not Mean ""Voluntary"". J Cogn 1:
Gold, James M; Robinson, Benjamin; Leonard, Carly J et al. (2018) Selective Attention, Working Memory, and Executive Function as Potential Independent Sources of Cognitive Dysfunction in Schizophrenia. Schizophr Bull 44:1227-1234
Hahn, Britta; Robinson, Benjamin M; Leonard, Carly J et al. (2018) Posterior Parietal Cortex Dysfunction Is Central to Working Memory Storage and Broad Cognitive Deficits in Schizophrenia. J Neurosci 38:8378-8387
Gaspelin, Nicholas; Luck, Steven J (2018) The Role of Inhibition in Avoiding Distraction by Salient Stimuli. Trends Cogn Sci 22:79-92
Gaspelin, Nicholas; Luck, Steven J (2018) Distinguishing among potential mechanisms of singleton suppression. J Exp Psychol Hum Percept Perform 44:626-644
Gaspelin, Nicholas; Luck, Steven J (2018) Combined Electrophysiological and Behavioral Evidence for the Suppression of Salient Distractors. J Cogn Neurosci 30:1265-1280
Feuerstahler, Leah M; Luck, Steven J; MacDonald 3rd, Angus et al. (2018) A note on the identification of change detection task models to measure storage capacity and attention in visual working memory. Behav Res Methods :
Gaspelin, Nicholas; Leonard, Carly J; Luck, Steven J (2017) Suppression of overt attentional capture by salient-but-irrelevant color singletons. Atten Percept Psychophys 79:45-62

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