Local field potentials in dorsal anterior cingulate sulcus reflect rewards but not travel time costs during foraging
| Autor: | Michael L. Platt, Benjamin Y. Hayden, Arjun Ramakrishnan |
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| Rok vydání: | 2019 |
| Předmět: |
Dorsum
prefrontal cortex 0303 health sciences cost-benefit analysis General Neuroscience Foraging nonhuman primate Local field potential Time cost Travel time 03 medical and health sciences 0302 clinical medicine Decision variables Special collection on Prefrontal Cortex Cingulate sulcus Neurology (clinical) Prefrontal cortex Psychology Decision making 030217 neurology & neurosurgery 030304 developmental biology Cognitive psychology |
| Zdroj: | Brain and Neuroscience Advances |
| ISSN: | 2398-2128 |
| Popis: | To maximise long-term reward rates, foragers deciding when to leave a patch must compute a decision variable that reflects both the immediately available reward and the time costs associated with travelling to the next patch. Identifying the mechanisms that mediate this computation is central to understanding how brains implement foraging decisions. We previously showed that firing rates of dorsal anterior cingulate sulcus neurons incorporate both variables. This result does not provide information about whether integration of information reflected in dorsal anterior cingulate sulcus spiking activity arises locally or whether it is inherited from upstream structures. Here, we examined local field potentials gathered simultaneously with our earlier recordings. In the majority of recording sites, local field potential spectral bands – specifically theta, beta, and gamma frequency ranges – encoded immediately available rewards but not time costs. The disjunction between information contained in spiking and local field potentials can constrain models of foraging-related processing. In particular, given the proposed link between local field potentials and inputs to a brain area, it raises the possibility that local processing within dorsal anterior cingulate sulcus serves to more fully bind immediate reward and time costs into a single decision variable. |
| Databáze: | OpenAIRE |
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