Publication details

The Role of the Inferior Frontal Gyri in Cognitive Processing of Patients with Parkinson's Disease: A Pilot rTMS Study

Authors

SROVNALOVÁ Hana MAREČEK Radek REKTOROVÁ Irena

Year of publication 2011
Type Article in Periodical
Magazine / Source MOVEMENT DISORDERS
MU Faculty or unit

Faculty of Medicine

Citation
Doi http://dx.doi.org/10.1002/mds.23663
Field Neurology, neurosurgery, neurosciences
Keywords Parkinsons disease; repetitive transcranial magnetic stimulation; cognitive; Stroop Test; Frontal Assessment Battery; inferior frontal gyrus
Description We studied whether 1 session of high-frequency repetitive transcranial magnetic stimulation (rTMS) applied sequentially over both the left and right inferior frontal gyri (IFG) would enhance performance in tests evaluating the ability to inhibit habitual responses (Stroop test, ST; Frontal Assessment Battery, FAB) in patients with Parkinson's disease (PD). Methods: Ten nondemented PD patients (6 men, 4 women; age, 66 +/- 6 years; disease duration, 5.4 +/- 2.45 years) entered the randomized, sham stimulation-controlled study with a crossover design. The ST and the FAB were performed prior to and immediately after an appropriate rTMS session. Results: The active but not sham rTMS induced significant improvement in all ST subtests (word, color, color-word). Conversely, the calculated Stroop interference and the FAB scores remained unchanged. Conclusions: In PD patients, rTMS of the IFG increased the speed of cognitive processing in both the congruent and incongruent conditions of the ST.
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