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Letters   |    
Transience of Dysexecutive Syndrome But Permanence of Motor Deficits in the Course of Recurrent Subfrontal Meningioma
Esat Fahri Aydin, M.D.; Erol Ozan, M.D.
The Journal of Neuropsychiatry and Clinical Neurosciences 2013;25:E19-E19. doi:10.1176/appi.neuropsych.12060141
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Dept. of Psychiatry Atatürk University School of Medicine Turkey

Correspondence: Türkiye e2628@yahoo.com; Türkiye erolozan@gmail.com

Copyright © 2013 American Psychiatric Association

Extract

To the Editor: The frontal-subcortical circuits: dorsolateral prefrontal, anterior cingulate, and orbitofrontal circuits constitute the framework that mediates the executive control of cognition, emotion, and behavior by connecting non-motor areas of frontal cortex to basal ganglia and thalamus. The dorsolateral prefrontal circuit mediates the organization of information to facilitate a response (i.e., the executive functions), and the anterior cingulate circuit is required for motivated behavior. The orbitofrontal circuit has lateral and medial divisions. The medial portion integrates visceral–amygdalar functions with the internal state of the organism, whereas the lateral portion is involved with integration of limbic and emotional information into contextually-appropriate behaviors. Impaired executive functions, apathy and disinhibition/impulsivity, are hallmarks of non-motor circuit dysfunction.1,2 The case below inspired us to highlight recoverability of non-motor circuit functions thanks to fascinating brain plasticity.

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References

Tekin  S;  Cummings  JL:  Frontal-subcortical neuronal circuits and clinical neuropsychiatry: an update.  J Psychosom Res 2002; 53:647–654
[CrossRef] | [PubMed]
 
Bonelli  RM;  Cummings  JL:  Frontal-subcortical circuitry and behavior.  Dialogues Clin Neurosci 2007; 9:141–151
[PubMed]
 
Krause  M;  Mahant  N;  Kotschet  K  et al:  Dysexecutive behaviour following deep brain lesions: a different type of disconnection syndrome? Cortex 2012; 48:97–119
[CrossRef] | [PubMed]
 
Duffau  H:  The “frontal syndrome” revisited: lessons from electrostimulation mapping studies.  Cortex 2012; 48:120–131
[CrossRef] | [PubMed]
 
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