|
|
|
Summary:It has been widely assumed that inside ahead models use efference copies to cre-ate predictions about the sensory consequences of our personal actions. While these pre-dictions have often been associated with a lowered blood oxygen leveldependent (Bold) response in sensory cortices, the timing and duration of thehemodynamic response for the processing of video suggestions of self-generated(energetic) versus externally generated (passive) movements is poorly understood. In thepresent examine, we examined the speculation that predictive mechanisms for self-generated actions lead to early and shorter neural processing compared with exter-nally generated movements. We investigated active and passive movements utilizing acustom-made fMRI-compatible motion BloodVitals device. Visual video suggestions of theactive and passive movements was offered in actual time or with variable delays.Participants had to guage whether or not the feedback was delayed. Taylor approximation. Our reanalysis con-firmed our previous discovering of lowered Bold response for lively compared to pas-sive movements. Moreover, we discovered constructive effects of the TD and DD in thesupplementary motor space, cerebellum, visible cortices, and subcortical structures,indicating earlier and shorter hemodynamic responses for energetic in comparison with passivemovements. Furthermore, earlier activation in the putamen for active in contrast topassive conditions was related to reduced delay detection performance. Thesefindings point out that efference copy-based mostly predictive mechanisms allow earlierprocessing of motion suggestions, which may need lowered the power to detect shortdelays between motion and suggestions. |
|
發表於