scholarly journals The Role of Dorsal Premotor Cortex in Resolving Abstract Motor Rules: Converging Evidence From Transcranial Magnetic Stimulation and Cognitive Modeling

2019 ◽  
Vol 11 (1) ◽  
pp. 240-260 ◽  
Author(s):  
Patrick Rice ◽  
Andrea Stocco
2004 ◽  
Vol 91 (2) ◽  
pp. 978-993 ◽  
Author(s):  
Steve W. Kennerley ◽  
K. Sakai ◽  
M.F.S. Rushworth

To understand the contribution of the human presupplementary motor area (pre-SMA) in sequential motor behavior, we performed a series of finger key-press experiments. Experiment 1 revealed that each subject had a spontaneous tendency to organize or “chunk” a long sequence into shorter components. We hypothesized that the pre-SMA might have a special role in initiating each chunk but not at other points during the sequence. Experiment 2 therefore examined the effect of 0.5-s, 10-Hz repetitive transcranial magnetic stimulation (rTMS) directed over the pre-SMA. As hypothesized, performance was disrupted when rTMS was delivered over the pre-SMA at the beginning of the second chunk but not when it was delivered in the middle of a chunk. Contrary to the hypothesis, TMS did not disrupt sequence initiation. Experiments 3 and 4 examined whether the very first movement of a sequence could be disrupted under any circumstances. Pre-SMA TMS did disrupt the initiation of sequences but only when subjects had to switch between sequences and when the first movement of each sequence was not covertly instructed by a learned visuomotor association. In conjunction, the results suggest that for overlearned sequences the pre-SMA is primarily concerned with the initiation of a sequence or sequence chunk and the role of the pre-SMA in sequence initiation is only discerned when subjects must retrieve the sequence from memory as a superordinate set of movements without the aid of a visuomotor association. Control experiments revealed such effects were not present when rTMS was applied over the left dorsal premotor cortex.


NeuroImage ◽  
2012 ◽  
Vol 62 (1) ◽  
pp. 500-509 ◽  
Author(s):  
Sergiu Groppa ◽  
Nicole Werner-Petroll ◽  
Alexander Münchau ◽  
Günther Deuschl ◽  
Matthew F.S. Ruschworth ◽  
...  

2017 ◽  
Vol 10 (2) ◽  
pp. 533-534
Author(s):  
A. Salatino ◽  
A. Piedimonte ◽  
P. Sarasso ◽  
F. Garbarini ◽  
R. Ricci ◽  
...  

PLoS ONE ◽  
2016 ◽  
Vol 11 (9) ◽  
pp. e0163380 ◽  
Author(s):  
Carlotta Lega ◽  
Marianne A. Stephan ◽  
Robert J. Zatorre ◽  
Virginia Penhune

2014 ◽  
Vol 5 (3) ◽  
Author(s):  
Michela Balconi ◽  
Ylenia Canavesio ◽  
Roberta Finocchiaro

AbstractRecognition of emotional facial expressions is based on simulation and mirroring processes, and the premotor cortex is supposed to support this simulation mechanism. The role of this prefrontal area in processing emotional faces with different valence (anger, fear, happiness and neutral) was explored taking into account the effect of the lateralization model (more right-side activation for negative emotions; more left-side activation for positive emotions) of face processing and anxiety level (high vs low). High-frequency repetitive transcranial magnetic stimulation (rTMS, 10 Hz) was applied to the left prefrontal area to induce an increased activation response within the left premotor cortex. Twenty-nine subjects, who were divided into two different groups depending on their anxiety level (high/low anxiety; State-Trait-Anxiety Inventory (STAI), were asked to detect emotion / no emotion. Accuracy (AcI) and response times (RTs) were considered in response to the experimental conditions. A general significant increased performance was found in response to positive emotions in the case of left-side stimulation. Moreover, whereas high-anxiety subjects revealed a significant negative-valence bias in absence of stimulation, they showed a more significant AcI increasing and RTs decreasing in response to positive emotions in case of left premotor brain activation. The present results highlight the role of the premotor system for facial expression processing as a function of emotional type, supporting the existence of a valence-specific lateralized system within the prefrontal area. Finally, a sort of “restoring effect” induced by TMS was suggested for high-anxiety subjects.


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