The brain can develop conflicting multisensory principles to guide behavior DOI Creative Commons
Scott A. Smyre, Naomi L. Bean, Barry E. Stein

et al.

Cerebral Cortex, Journal Year: 2024, Volume and Issue: 34(6)

Published: June 1, 2024

Abstract Midbrain multisensory neurons undergo a significant postnatal transition in how they process cross-modal (e.g. visual–auditory) signals. In early stages, signals derived from common events are processed competitively; however, at later stages cooperatively such that their salience is enhanced. This reflects adaptation to configurations consistently experienced and become informative about which correspond events. Tested here was the assumption overt behaviors follow similar maturation. Cats were reared omnidirectional sound thereby compromising experience needed for this developmental process. Animals then repeatedly exposed different of visual auditory stimuli spatiotemporally congruent or spatially disparate) varied on each side space behavior assessed using detection/localization task. showed enhanced performance consistent with provided: elicited where provided, disparate provided. Cross-modal not did enhance responses. The presumptive benefit flexibility sensitize neural circuits (and control) features environment will function. These experiments reveal these processes have high degree flexibility, two (conflicting) principles can be implemented by opposite sides even within same animal.

Language: Английский

The brain can develop conflicting multisensory principles to guide behavior DOI Creative Commons
Scott A. Smyre, Naomi L. Bean, Barry E. Stein

et al.

Cerebral Cortex, Journal Year: 2024, Volume and Issue: 34(6)

Published: June 1, 2024

Abstract Midbrain multisensory neurons undergo a significant postnatal transition in how they process cross-modal (e.g. visual–auditory) signals. In early stages, signals derived from common events are processed competitively; however, at later stages cooperatively such that their salience is enhanced. This reflects adaptation to configurations consistently experienced and become informative about which correspond events. Tested here was the assumption overt behaviors follow similar maturation. Cats were reared omnidirectional sound thereby compromising experience needed for this developmental process. Animals then repeatedly exposed different of visual auditory stimuli spatiotemporally congruent or spatially disparate) varied on each side space behavior assessed using detection/localization task. showed enhanced performance consistent with provided: elicited where provided, disparate provided. Cross-modal not did enhance responses. The presumptive benefit flexibility sensitize neural circuits (and control) features environment will function. These experiments reveal these processes have high degree flexibility, two (conflicting) principles can be implemented by opposite sides even within same animal.

Language: Английский

Citations

2