scholarly journals Motivation and Affective Judgments Differentially Recruit Neurons in the Primate Dorsolateral Prefrontal and Anterior Cingulate Cortex

2015 ◽  
Vol 35 (5) ◽  
pp. 1939-1953 ◽  
Author(s):  
K.-i. Amemori ◽  
S. Amemori ◽  
A. M. Graybiel
Keyword(s):  
Anterior Cingulate Cortex ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Dorsolateral Prefrontal

Effects of unilateral deactivations of dorsolateral prefrontal cortex and anterior cingulate cortex on saccadic eye movements

2014 ◽  
Vol 111 (4) ◽  
pp. 787-803 ◽  
Author(s):  
Michael J. Koval ◽  
R. Matthew Hutchison ◽  
Stephen G. Lomber ◽  
Stefan Everling
Keyword(s):  
Prefrontal Cortex ◽  
Eye Movements ◽  
Functional Connectivity ◽  
Anterior Cingulate Cortex ◽  
Dorsolateral Prefrontal Cortex ◽  
Saccadic Eye Movements ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Dorsolateral Prefrontal ◽  
Single Neuron Recording

The dorsolateral prefrontal cortex (dlPFC) and anterior cingulate cortex (ACC) have both been implicated in the cognitive control of saccadic eye movements by single neuron recording studies in nonhuman primates and functional imaging studies in humans, but their relative roles remain unclear. Here, we reversibly deactivated either dlPFC or ACC subregions in macaque monkeys while the animals performed randomly interleaved pro- and antisaccades. In addition, we explored the whole-brain functional connectivity of these two regions by applying a seed-based resting-state functional MRI analysis in a separate cohort of monkeys. We found that unilateral dlPFC deactivation had stronger behavioral effects on saccades than unilateral ACC deactivation, and that the dlPFC displayed stronger functional connectivity with frontoparietal areas than the ACC. We suggest that the dlPFC plays a more prominent role in the preparation of pro- and antisaccades than the ACC.

scholarly journals SNAP-25a/b Isoform Levels in Human Brain Dorsolateral Prefrontal Cortex and Anterior Cingulate Cortex

2015 ◽  
Vol 1 (4) ◽  
pp. 220-234 ◽  
Author(s):  
Peter M. Thompson ◽  
Dianne A. Cruz ◽  
Elizabeth A. Fucich ◽  
Dianna Y. Olukotun ◽  
Masami Takahashi ◽  
...  
Keyword(s):  
Prefrontal Cortex ◽  
Human Brain ◽  
Anterior Cingulate Cortex ◽  
Dorsolateral Prefrontal Cortex ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Dorsolateral Prefrontal

scholarly journals Cognitive and Neuroimaging Profiles of Individuals With Dual Decline in Memory and Gait

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 766-767
Author(s):  
Qu Tian ◽  
Susan Resnick ◽  
Christos Davatzikos ◽  
Stephanie Studenski ◽  
Luigi Ferrucci
Keyword(s):  
Depressive Symptoms ◽  
Anterior Cingulate Cortex ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Precentral Gyrus ◽  
Visuospatial Ability ◽  
Brain Volumes ◽  
Dementia Risk ◽  
Increased Risk ◽  
Dorsolateral Prefrontal

Abstract Across 6 aging cohorts we showed that dual decline in memory and gait speed was associated with increased risk of dementia compared to memory or gait decline only. We now characterize dual decliners. Using longitudinal BLSA data, we examined associations of phenotypic groups with changes in cognition, depressive symptoms, and brain volumes in areas important for cognitive (dorsolateral prefrontal, medial temporal) and motor functions (precentral gyrus,striatum,thalamus,anterior cingulate cortex) using linear mixed effects models (usual agers=reference), adjusting for covariates. Compared to usual agers, dual decliners had faster decline in card rotation score, greater increase in CES-D, and greater atrophy in thalamus and anterior cingulate cortex. Rates of change in these parameters did not differ among the other three groups. Dual decliners experience faster decline in visuospatial ability, greater atrophy in selected motor areas, and greater increase in depressive symptoms, suggesting potential mechanisms underlying increased dementia risk in dual decliners.

scholarly journals Macaque anterior cingulate cortex deactivation impairs performance and alters lateral prefrontal oscillatory activities in a rule-switching task

2018 ◽  
Author(s):  
Liya Ma ◽  
Jason L. Chan ◽  
Kevin Johnston ◽  
Stephen G. Lomber ◽  
Stefan Everling
Keyword(s):  
Cognitive Control ◽  
Anterior Cingulate Cortex ◽  
Critical Role ◽  
Cingulate Cortex ◽  
Anterior Cingulate ◽  
Dorsal Anterior Cingulate Cortex ◽  
Stimulus Response ◽  
Dorsolateral Prefrontal ◽  
Phase Amplitude ◽  
Switching Task

SUMMARYIn primates, both the dorsal anterior cingulate cortex (dACC) and the dorsolateral prefrontal cortex (dlPFC) are key regions of the frontoparietal cognitive control network. To study the role of the dACC and its communication with the dlPFC in cognitive control, we recorded the local field potentials from the dlPFC before and during the reversible deactivation of the dACC, in macaque monkeys engaging in uncued switches between two stimulus-response rules. Cryogenic dACC deactivation impaired response accuracy during rule-maintenance, but not rule-switching, which coincided with a reduction in the correct-error difference in dlPFC beta activities specifically during maintenance of the more challenging rule. During both rule switching and maintenance, dACC deactivation prolonged the animals’ reaction time and reduced task-related theta/alpha activities in the dlPFC; it also weakened dlPFC theta-gamma phase-amplitude modulation. Thus, the dACC and its interaction with the dlPFC plays a critical role in the maintenance of a new, challenging rule.

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