Cerebellar Transcranial Direct Current Stimulation (tDCS), leaves virtual navigation performance unchanged
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Cerebellar Transcranial Direct Current Stimulation (tDCS), leaves virtual navigation performance unchangedAutoria
Data de publicació
2019-03-12Editor
Frontiers MediaCita bibliogràfica
FERRUCCI, Roberta; SERINO, Silvia; RUGGIERO, Fabiana; REPETTO, Claudia; COLOMBO, Desirée; PEDROLI, Elisa; MARCEGLIA, Sara; RIVA, Giiuseppe; PRIORI, Alberto (2019).Cerebellar Transcranial Direct Current Stimulation (tDCS), leaves virtual navigation performance unchanged. Frontiers in Neuroscience (2019), v. 13Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://www.frontiersin.org/articles/10.3389/fnins.2019.00198/fullVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
Spatial cognition is an umbrella term used to refer to the complex set of abilities
necessary to encode, categorize, and use spatial information from the surrounding
environment to move effectively and orient within ... [+]
Spatial cognition is an umbrella term used to refer to the complex set of abilities
necessary to encode, categorize, and use spatial information from the surrounding
environment to move effectively and orient within it. Experimental studies indicate that
the cerebellum belongs to the neural network involved in spatial cognition, although its
exact role in this function remains unclear. Our aim was to investigate in a pilot study
using a virtual reality navigation task in healthy subjects whether cerebellar transcranial
direct current stimulation (tDCS), a non-invasive technique, influences spatial navigation.
Forty healthy volunteers (24 women; age range = 20–42 years; years of education
range 13–18) were recruited. The virtual reality spatial navigation task comprised two
phases: encoding, in which participants actively navigated the environment and learned
the spatial locations for one object, and retrieval, in which they retrieved the position
of the object they had discovered and memorized in the previous encoding phase,
starting from another starting point. Participants received tDCS stimulation (anodal or
sham according to the experimental condition they were assigned to) for 20 min before
beginning the retrieval phase. Our results showed that cerebellar tDCS left the accuracy
of the three indexes used to measure effective navigational abilities unchanged. Hence,
cerebellar tDCS had no influence on the retrieval phase for the spatial maps stored.
Further studies, enrolling a larger sample and testing a different stimulation protocol,
may give a greater insight into the role of the cerebellum in spatial navigation. [-]
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info:eu-repo/semantics/openAccess
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