Saltar al contenido principal

Escribe una PREreview

Prefrontal stimulation prior to motor sequence learning alters multivoxel patterns in the striatum and the hippocampus

Publicada
Servidor
bioRxiv
DOI
10.1101/2021.07.01.450671

Motor sequence learning (MSL) is supported by dynamical interactions between hippocampal and striatal networks that are thought to be orchestrated by the prefrontal cortex. In the present study, we tested whether individually-tailored theta-burst stimulation of the dorsolateral prefrontal cortex (DLPFC) prior to MSL, can modulate multivoxel response patterns in the stimulated cortical area, the hippocampus and the striatum. Response patterns were assessed with multivoxel correlation structure analyses of functional magnetic resonance imaging data acquired during task practice and during resting-state scans before and after learning/stimulation. Results revealed that, across stimulation conditions, MSL induced greater modulation of task-related DLPFC multivoxel patterns than random practice. A similar learning-related modulatory effect was observed on sensorimotor putamen patterns under inhibitory stimulation. Furthermore, MSL as well as inhibitory stimulation affected (posterior) hippocampal multivoxel patterns at post-intervention rest. Exploratory analyses showed that MSL-related brain patterns in the posterior hippocampus persisted into post-learning rest preferentially after inhibitory stimulation. These results collectively show that prefrontal stimulation can alter multivoxel brain patterns in deep brain regions that are critical for the MSL process. They also suggest that stimulation influenced early offline consolidation processes as evidenced by a stimulation-induced modulation of the reinstatement of task pattern into post-learning wakeful rest.

Puedes escribir una PREreview de Prefrontal stimulation prior to motor sequence learning alters multivoxel patterns in the striatum and the hippocampus. Una PREreview es una revisión de un preprint y puede variar desde unas pocas oraciones hasta un extenso informe, similar a un informe de revisión por pares organizado por una revista.

Antes de comenzar

Te pediremos que inicies sesión con tu ORCID iD. Si no tienes un iD, puedes crear uno.

¿Qué es un ORCID iD?

Un ORCID iD es un identificador único que te distingue de otros/as con tu mismo nombre o uno similar.

Comenzar ahora