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bioRxiv · 10.1101/2020.12.17.423241

Behavioral rebound following isolation of attention

Edwards, G.·Berestova, A.·Battelli, L.
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Abstract

Stable sensory perception is achieved through balanced excitatory-inhibitory interactions of lateralized sensory processing. In real world experience, sensory processing is rarely equal across lateralized processing regions, resulting in continuous rebalancing. Using lateralized attention as a case study, we predicted rebalancing lateralized processing following prolonged spatial attention imbalance could cause a gain in attention the opposite direction. In neurotypical human adults, we isolated covert attention to one visual field with a 30-minute attention-demanding task and found an increase in attention in the opposite visual field after manipulation. We suggest a gain in lateralized attention in the previously unattended visual field is due to an overshoot through attention rebalancing. The offline post-manipulation effect is suggestive of long-term potentiation affecting behavior. Our finding of visual field specific attention rebound could be critical for the development of clinical rehabilitation for patients with a unilateral lesion and lateralized attention deficits. This proof-of-concept study initiates the examination of overshoot following the release of imbalance in other lateralized control and sensory domains, important in our basic understanding of lateralized processing.

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Edwards, G., Berestova, A., Battelli, L.. 2020-12-18. Behavioral rebound following isolation of attention. https://doi.org/10.1101/2020.12.17.423241

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