fMRI study: Brain activation in schizophrenic patients and healthy subjects during a working memory test

2000 ◽  
Vol 41 (1) ◽  
pp. 131-132
Author(s):  
N. Mjellem ◽  
A. Lund ◽  
K. Hugdahl ◽  
B. Rund ◽  
N.I. Landrø ◽  
...  
2007 ◽  
Vol 22 (4) ◽  
pp. 332-342 ◽  
Author(s):  
Ian A. Cook ◽  
Susan Y. Bookheimer ◽  
Laura Mickes ◽  
Andrew F. Leuchter ◽  
Anand Kumar

2008 ◽  
Vol 79 (1) ◽  
pp. 70-79 ◽  
Author(s):  
Gabriëlla A.M. Blokland ◽  
Katie L. McMahon ◽  
Jan Hoffman ◽  
Gu Zhu ◽  
Matthew Meredith ◽  
...  

Neuroreport ◽  
2001 ◽  
Vol 12 (18) ◽  
pp. 4047-4054 ◽  
Author(s):  
Nils Inge Landrø ◽  
Bjørn Rishovd Rund ◽  
Anders Lund ◽  
Kjetil Sundet ◽  
Norma Mjellem ◽  
...  

2001 ◽  
Vol 12 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Andreas Brand ◽  
Helmut Hildebrandt ◽  
Ahmet Cabuk ◽  
Jörg Zimmermann ◽  
Canan Basar-Eroglu

Abstract: In this study, we compared working memory (WM) functions for simple actions of healthy subjects and schizophrenic patients by means of behavioral and ERP measures. Healthy subjects showed a large frontal N2 amplitude in the hard WM task with updating demands of temporal sequence, but not in the easy WM and the control task. Schizophrenic patients had large frontal N2 amplitudes in all tasks without difference indicating that the patients had to activate the frontal cortex in tasks in which healthy subjects use automatized routines which do not involve the frontal cortex. Strong negative symptoms in schizophrenic patients were associated with small N2 amplitudes thus supporting the hypothesis of joint causes of cognitive and psychopathological features.


2009 ◽  
Vol 4 (1) ◽  
pp. 5-21 ◽  
Author(s):  
James F. Paskavitz ◽  
Lawrence H. Sweet ◽  
Jeremy Wellen ◽  
Karl G. Helmer ◽  
Stephen M. Rao ◽  
...  

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