fMRI abnormalities in dorsolateral prefrontal cortex during a working memory task in manic, euthymic and depressed bipolar subjects

J Townsend, SY Bookheimer, LC Foland–Ross… - Psychiatry Research …, 2010 - Elsevier
Neuropsychological studies of subjects with bipolar disorder suggest impairment of working
memory not only in acute mood states, but also while subjects are euthymic. Using fMRI to …

Prefrontal cortical activation associated with working memory in adults and preschool children: an event-related optical topography study

S Tsujimoto, T Yamamoto, H Kawaguchi… - Cerebral …, 2004 - academic.oup.com
It is well known that lateral areas of the prefrontal cortex (LPFC) play a central role in
working memory (a critical basis of various cognitive functions), but it remains unknown …

Neural correlates of a reversal learning task with an affectively neutral baseline: an event-related fMRI study

PL Remijnse, MMA Nielen, HBM Uylings, DJ Veltman - Neuroimage, 2005 - Elsevier
Reversal learning may conceptually be dissected into acquiring stimulus–reinforcement
associations and subsequently altering behavior by switching to new associations as …

Association of storage and processing functions in the dorsolateral prefrontal cortex of the nonhuman primate

R Levy, PS Goldman-Rakic - Journal of Neuroscience, 1999 - Soc Neuroscience
The prominent role of the prefrontal cortex (PFC) in working memory (WM) is widely
acknowledged both in nonhuman primates and in humans. However, less agreement exists …

The influence of memory load upon delay-interval activity in a working-memory task: an event-related functional MRI study

AP Jha, G McCarthy - Journal of Cognitive Neuroscience, 2000 - direct.mit.edu
We conducted two fMRI studies to investigate the sensitivity of delay-period activity to
changes in memory load during a delayed-recognition task for faces. In Experiment 1, each …

Working memory deficits after traumatic brain injury: catecholaminergic mechanisms and prospects for treatment—a review

TW Mcallister, LA Flashman, MB Sparling, AJ Saykin - Brain injury, 2004 - Taylor & Francis
Primary objective: To review the neural circuitry and neurochemistry of working memory and
outline the evidence for working memory deficits after traumatic brain injury, and the …

Segregation of areas related to visual working memory in the prefrontal cortex revealed by rTMS

FM Mottaghy, M Gangitano, R Sparing… - Cerebral …, 2002 - academic.oup.com
The functional organization of working memory (WM) in the human prefrontal cortex remains
unclear. Storage and processing functions might be segregated in ventral and dorsal areas …

Functional Disconnection Between the Prefrontal and Parietal Cortices During Working Memory Processing in Schizophrenia: A [15O]H2O PET Study

JJ Kim, JS Kwon, HJ Park, T Youn… - American Journal of …, 2003 - Am Psychiatric Assoc
OBJECTIVE: The prefrontal-parietal circuits have been reported to play an important role in
working memory. The purpose of this study was to use direct neuroimaging to address …

Functional topography of a distributed neural system for spatial and nonspatial information maintenance in working memory

JB Sala, P Rämä, SM Courtney - Neuropsychologia, 2003 - Elsevier
We investigated the degree to which the distributed and overlapping patterns of activity for
working memory (WM) maintenance of objects and spatial locations are functionally …

Using neuroimaging to evaluate models of working memory and their implications for language processing

JM Chein, SM Ravizza, JA Fiez - Journal of Neurolinguistics, 2003 - Elsevier
The precise relationships that exist between verbal working memory and language
processing remain underdetermined. We argue that while neuroimaging methods have the …