期刊
CURRENT OPINION IN NEUROBIOLOGY
卷 73, 期 -, 页码 -出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.conb.2022.01.002
关键词
Neural dynamics; Neuroethology; Internal state; Innate behavior; Neuromodulation; Dynamical systems
资金
- Max Planck Institute for Biological Cybernetics, Tuebingen, Germany
State-dependent computation plays a crucial role in cognition for both biological and artificial systems. Alan Turing and ethologists recognized its power in describing internal drives and behaviors. This article reformulates core ethological concepts in terms of explicitly dynamical systems and examines neural dynamics underlying internal states.
State-dependent computation is key to cognition in both biological and artificial systems. Alan Turing recognized the power of stateful computation when he created the Turing machine with theoretically infinite computational capacity in 1936. Independently, by 1950, ethologists such as Tinbergen and Lorenz also began to implicitly embed rudimentary forms of state-dependent computation to create qualitative models of internal drives and naturally occurring animal behaviors. Here, we reformulate core ethological concepts in explicitly dynamical systems terms for stateful computation. We examine, based on a wealth of recent neural data collected during complex innate behaviors across species, the neural dynamics that determine the temporal structure of internal states. We will also discuss the degree to which the brain can be hierarchically partitioned into nested dynamical systems and the need for a multi-dimensional state-space model of the neuro-modulatory system that underlies motivational and affective states.
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