Abstract
While structural abnormalities of the dorsolateral prefrontal cortex (DLPFC) may pre-date and predict psychosis onset, the relationships between functional deficits, cognitive and psychosocial impairments has yet to be explored in the at-risk period. An established measure of cognitive control (AXCPT) was administered to demographically matched clinical-high-risk (CHR; n=25), first-episode schizophrenia (FE; n=35), and healthy control (HC; n=35) participants during functional magnetic resonance imaging (fMRI) to investigate these relationships. CHR and FE individuals demonstrated impaired context processing and reduced DLPFC activation relative to HC individuals during increased cognitive control demands. FE and CHR individuals' ability to increase DLPFC activity in response to cognitive control demands was associated with better task performance. Task performance was also associated with severity of disorganization and poverty symptoms in FE participants. These findings support more extensive studies using fMRI to examine the clinical significance of prefrontal cortical functioning in the earliest stages of psychosis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 13-20 |
| Number of pages | 8 |
| Journal | Psychiatry Research - Neuroimaging |
| Volume | 221 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 30 2014 |
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Keywords
- Clinical high risk
- Cognition
- FMRI
- Prefrontal cortex
- Psychosis
- Ultra high risk
ASJC Scopus subject areas
- Psychiatry and Mental health
- Radiology Nuclear Medicine and imaging
- Neuroscience (miscellaneous)
Cite this
Impaired context processing as a potential marker of psychosis risk state. / Niendam, Tara A; Lesh, Tyler A.; Yoon, Jong; Westphal, Andrew J.; Hutchison, Natalie; Ragland, John D; Friedman, Marjorie Solomon; Minzenberg, Michael; Carter, Cameron S.
In: Psychiatry Research - Neuroimaging, Vol. 221, No. 1, 30.01.2014, p. 13-20.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Impaired context processing as a potential marker of psychosis risk state
AU - Niendam, Tara A
AU - Lesh, Tyler A.
AU - Yoon, Jong
AU - Westphal, Andrew J.
AU - Hutchison, Natalie
AU - Ragland, John D
AU - Friedman, Marjorie Solomon
AU - Minzenberg, Michael
AU - Carter, Cameron S
PY - 2014/1/30
Y1 - 2014/1/30
N2 - While structural abnormalities of the dorsolateral prefrontal cortex (DLPFC) may pre-date and predict psychosis onset, the relationships between functional deficits, cognitive and psychosocial impairments has yet to be explored in the at-risk period. An established measure of cognitive control (AXCPT) was administered to demographically matched clinical-high-risk (CHR; n=25), first-episode schizophrenia (FE; n=35), and healthy control (HC; n=35) participants during functional magnetic resonance imaging (fMRI) to investigate these relationships. CHR and FE individuals demonstrated impaired context processing and reduced DLPFC activation relative to HC individuals during increased cognitive control demands. FE and CHR individuals' ability to increase DLPFC activity in response to cognitive control demands was associated with better task performance. Task performance was also associated with severity of disorganization and poverty symptoms in FE participants. These findings support more extensive studies using fMRI to examine the clinical significance of prefrontal cortical functioning in the earliest stages of psychosis.
AB - While structural abnormalities of the dorsolateral prefrontal cortex (DLPFC) may pre-date and predict psychosis onset, the relationships between functional deficits, cognitive and psychosocial impairments has yet to be explored in the at-risk period. An established measure of cognitive control (AXCPT) was administered to demographically matched clinical-high-risk (CHR; n=25), first-episode schizophrenia (FE; n=35), and healthy control (HC; n=35) participants during functional magnetic resonance imaging (fMRI) to investigate these relationships. CHR and FE individuals demonstrated impaired context processing and reduced DLPFC activation relative to HC individuals during increased cognitive control demands. FE and CHR individuals' ability to increase DLPFC activity in response to cognitive control demands was associated with better task performance. Task performance was also associated with severity of disorganization and poverty symptoms in FE participants. These findings support more extensive studies using fMRI to examine the clinical significance of prefrontal cortical functioning in the earliest stages of psychosis.
KW - Clinical high risk
KW - Cognition
KW - FMRI
KW - Prefrontal cortex
KW - Psychosis
KW - Ultra high risk
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UR - http://www.scopus.com/inward/citedby.url?scp=84891829184&partnerID=8YFLogxK
U2 - 10.1016/j.pscychresns.2013.09.001
DO - 10.1016/j.pscychresns.2013.09.001
M3 - Article
C2 - 24120302
AN - SCOPUS:84891829184
VL - 221
SP - 13
EP - 20
JO - Psychiatry Research - Neuroimaging
JF - Psychiatry Research - Neuroimaging
SN - 0925-4927
IS - 1
ER -