Monchi, O. ; Petrides, M. ; Doyon, J. ; Postuma, R. B. ; Worsley, K. ; Dagher, A. (2004). "Neural Bases of Set-Shifting Deficits in Parkinson's Disease". Journal of Neuroscience. 24 (3): 702–710. doi:10.1523/JNEUROSCI.4860-03.2004. PMID 14736856.
Sawada, Y. ; Nishio, Y. ; Suzuki, K. ; Hirayama, K. ; Takeda, A. ; Hosokai, Y. ; Ishioka, T. ; Itoyama, Y. ; Takahashi, S. ; Fukuda, H. ; Mori, E. (2012). García, Antonio Verdejo (ed.). "Attentional Set-Shifting Deficit in Parkinson's Disease is Associated with Prefrontal Dysfunction: An FDG-PET Study". PLoS ONE. 7 (6): e38498. doi:10.1371/journal.pone.0038498. PMC 3369918. PMID 22685575.
