scholarly journals Abnormal prefrontal brain activation during a verbal fluency task in bipolar disorder patients with psychotic symptoms using multichannel NIRS

2018 ◽  
Vol Volume 14 ◽  
pp. 3081-3090 ◽  
Author(s):  
Jing-Jing Sun ◽  
Xiao-Min Liu ◽  
Chen-Yu Shen ◽  
Kun Feng ◽  
Po-Zi Liu
Keyword(s):  
Bipolar Disorder ◽  
Verbal Fluency ◽  
Brain Activation ◽  
Psychotic Symptoms ◽  
Verbal Fluency Task ◽  
Fluency Task

Disrupted Brain Activation and Deactivation Pattern during Semantic Verbal Fluency Task in Patients with Major Depression

2016 ◽  
Vol 74 (2) ◽  
pp. 69-77 ◽  
Author(s):  
Masahiro Takamura ◽  
Yasumasa Okamoto ◽  
Go Okada ◽  
Shigeru Toki ◽  
Tetsuya Yamamoto ◽  
...  
Keyword(s):  
Major Depression ◽  
Verbal Fluency ◽  
Brain Activation ◽  
Verbal Fluency Task ◽  
Semantic Verbal Fluency ◽  
Fluency Task

Dorsolateral prefrontal hemodynamic responses during a verbal fluency task in hypomanic bipolar disorder

2014 ◽  
Vol 17 (2) ◽  
pp. 172-183 ◽  
Author(s):  
Yukika Nishimura ◽  
Katsuyoshi Takahashi ◽  
Toshiyuki Ohtani ◽  
Reina Ikeda-Sugita ◽  
Kiyoto Kasai ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Verbal Fluency ◽  
Hemodynamic Responses ◽  
Verbal Fluency Task ◽  
Dorsolateral Prefrontal ◽  
Fluency Task

scholarly journals A Verbal Fluency Task‐Based Brain Activation fMRI Study in Patients with Crohn's Disease in Remission

2019 ◽  
Vol 29 (5) ◽  
pp. 630-639 ◽  
Author(s):  
Veena A. Nair ◽  
Keith Dodd ◽  
Shruti Rajan ◽  
Anu Santhanubosu ◽  
Poonam Beniwal‐Patel ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Verbal Fluency ◽  
Brain Activation ◽  
Verbal Fluency Task ◽  
Fmri Study ◽  
Fluency Task

scholarly journals Prefrontal Cortex Activation During Verbal Fluency Task and Tower of London Task in Schizophrenia and Major Depressive Disorder

2021 ◽  
Vol 12 ◽  
Author(s):  
Yilei Xiang ◽  
Yuan Li ◽  
Chang Shu ◽  
Zhongchun Liu ◽  
Huiling Wang ◽  
...  
Keyword(s):  
Major Depressive Disorder ◽  
Prefrontal Cortex ◽  
Verbal Fluency ◽  
Brain Activation ◽  
Cognitive Tasks ◽  
Hemodynamic Changes ◽  
Major Depressive ◽  
Verbal Fluency Task ◽  
Patient Groups ◽  
Fluency Task

Background: Cognitive dysfunction is a common clinical feature of mental disorders. A number of functional near-infrared spectroscopy (fNIRS) studies have shown reduced prefrontal activation during the verbal fluency task (VFT) in schizophrenia (SZ) and major depressive disorder (MDD). However, no studies have examined and compared the brain activation patterns during the Tower of London (TOL), which is another classic, high-sensitivity executive function testing tool, in these two serious mental disorders. This study aimed to assess the characteristics of brain activation during the two different cognitive tasks in SZ and MDD patients.Methods: This study recruited 30 patients with SZ, 30 patients with MDD, and 30 demographically matched healthy controls (HCs). The hemodynamic changes of the prefrontal cortex (PFC) were measured using 32-channel fNIRS during performance of the TOL task and VFT task.Results: SZ patients showed poorer VFT performance than MDD patients and HCs, and the two patient groups showed poorer TOL performance than HCs. Compared to HCs, both of the patient groups exhibited a significant decreased activation in the extensive PFC. Particularly in certain channels in the dorsolateral PFC (DLPFC), SZ patients exhibited significantly decreased hemodynamic changes than the MDD patients.Conclusions: Patients with SZ and MDD have different levels of impairment in different cognitive domains and different patterns of brain activation during the two cognitive tasks. Further research is needed to determine the use of fNIRS for clinical evaluation and diagnosis.

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