Vestibular contribution to memory processing

Abstract

Background and Aim: The vestibular system contributes in the stabilization of the head and body, orientation, and gazing through the processing of sensory inputs. A wealth of evidence supports the involvement of vestibular informa-tion in higher functions, too. Methods: In this paper, we reviewed the pre-vious studies on the effect of the vestibular system on memory as one of the cognitive func-tions. Results: Clinical and laboratory findings indi-cate the association of vestibular inputs (besides postural control and oculomotor) with a variety of higher functions, especially memory func-tion. Because part of the memory function is determined by other cognitive processes i.e. attention capacity, emotional disturbances, and executive functions, the study of the effect of vestibular inputs on these functions provides a more accurate view of how the vestibular inputs affect memory performance. Conclusion: Although our current knowledge on vestibular-memory interaction is increasing, the exact involvement of vestibular signals in memory representations is still unclear and needs further studies to determine the theore-tical basis of vestibular involvement in memory processing.