Cortico-ocular coupling in the service of episodic memory formation.

Autor: Popov T; Methods of Plasticity Research, Department of Psychology, University of Zurich, Zurich, Switzerland; Department of Psychology, University of Konstanz, Konstanz, Germany. Electronic address: tzvetan.popov@uzh.ch., Staudigl T; Department of Psychology, Ludwig-Maximilians-Universität München, Munich, Germany.
Jazyk: angličtina
Zdroj: Progress in neurobiology [Prog Neurobiol] 2023 Aug; Vol. 227, pp. 102476. Date of Electronic Publication: 2023 Jun 01.
DOI: 10.1016/j.pneurobio.2023.102476
Abstrakt: Encoding of visual information is a necessary requirement for most types of episodic memories. In search for a neural signature of memory formation, amplitude modulation of neural activity has been repeatedly shown to correlate with and suggested to be functionally involved in successful memory encoding. We here report a complementary view on why and how brain activity relates to memory, indicating a functional role of cortico-ocular interactions for episodic memory formation. Recording simultaneous magnetoencephalography and eye tracking in 35 human participants, we demonstrate that gaze variability and amplitude modulations of alpha/beta oscillations (10-20 Hz) in visual cortex covary and predict subsequent memory performance between and within participants. Amplitude variation during pre-stimulus baseline was associated with gaze direction variability, echoing the co-variation observed during scene encoding. We conclude that encoding of visual information engages unison coupling between oculomotor and visual areas in the service of memory formation.
Competing Interests: Declaration of Competing Interest The authors report no competing interests.
(Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE