» Articles » PMID: 27342314

Brain Activation Differences in Schizophrenia During Context-dependent Processing of Saccade Tasks

Overview
Publisher Biomed Central
Date 2016 Jun 26
PMID 27342314
Citations 4
Authors
Affiliations
Soon will be listed here.
Abstract

Background: Brain function in schizophrenia has been probed using saccade paradigms and functional magnetic resonance imaging, but little information exists about how changing task context impacts saccade related brain activation and behavioral performance. We recruited schizophrenia and comparison subjects to perform saccade tasks in differing contexts: (1) two single task runs (anti- or pro-saccades alternating with fixation) and (2) one dual task run (antisaccades alternating with prosaccades).

Results: Context-dependent differences in saccade circuitry were evaluated using ROI analyses. Distinction between anti- and pro-saccade activation across contexts (single versus dual task) suggests that the schizophrenia group did not respond to context in the same way as the comparison group.

Conclusions: Further investigation of context processing effects on brain activation and saccade performance measures informs models of cognitive deficits in the disorder and enhances understanding of antisaccades as a potential endophenotype for schizophrenia.

Citing Articles

Positive and Negative Symptoms Are Associated with Distinct Effects on Predictive Saccades.

Smith E, Crawford T Brain Sci. 2022; 12(4).

PMID: 35447950 PMC: 9025332. DOI: 10.3390/brainsci12040418.


Saccadic eye movements in different dimensions of schizophrenia and in clinical high-risk state for psychosis.

Obyedkov I, Skuhareuskaya M, Skugarevsky O, Obyedkov V, Buslauski P, Skuhareuskaya T BMC Psychiatry. 2019; 19(1):110.

PMID: 30961571 PMC: 6454611. DOI: 10.1186/s12888-019-2093-8.


Regularized aggregation of statistical parametric maps.

Wang L, Chung J, Park C, Choi H, Rodrigue A, Pierce J Hum Brain Mapp. 2018; 40(1):65-79.

PMID: 30184306 PMC: 6865509. DOI: 10.1002/hbm.24355.


Failure to mobilize cognitive control for challenging tasks correlates with symptom severity in schizophrenia.

Baran B, Karahanoglu F, Agam Y, Mantonakis L, Manoach D Neuroimage Clin. 2016; 12:887-893.

PMID: 27872811 PMC: 5109850. DOI: 10.1016/j.nicl.2016.10.020.

References
1.
Camchong J, Dyckman K, Austin B, Clementz B, McDowell J . Common neural circuitry supporting volitional saccades and its disruption in schizophrenia patients and relatives. Biol Psychiatry. 2008; 64(12):1042-50. PMC: 3339629. DOI: 10.1016/j.biopsych.2008.06.015. View

2.
McDowell J, Brown G, Paulus M, Martinez A, Stewart S, Dubowitz D . Neural correlates of refixation saccades and antisaccades in normal and schizophrenia subjects. Biol Psychiatry. 2002; 51(3):216-23. DOI: 10.1016/s0006-3223(01)01204-5. View

3.
Jenkinson M, Beckmann C, Behrens T, Woolrich M, Smith S . FSL. Neuroimage. 2011; 62(2):782-90. DOI: 10.1016/j.neuroimage.2011.09.015. View

4.
McDowell J, Dyckman K, Austin B, Clementz B . Neurophysiology and neuroanatomy of reflexive and volitional saccades: evidence from studies of humans. Brain Cogn. 2008; 68(3):255-70. PMC: 2614688. DOI: 10.1016/j.bandc.2008.08.016. View

5.
Stratta P, Daneluzzo E, Bustini M, Prosperini P, Rossi A . Processing of context information in schizophrenia: relation to clinical symptoms and WCST performance. Schizophr Res. 2000; 44(1):57-67. DOI: 10.1016/s0920-9964(99)00142-5. View