SeminarRecording AvailableNeuroscience

Neural representations of space in the hippocampus of a food-caching bird

Schedule
Wednesday, December 1, 2021
17:00 UTC
Hannah Payne

Aronov lab, Columbia University

Host: WWNeuRise

Recording

Event Information

Recording

Available

Host

WWNeuRise

Duration

35 minutes

Abstract

Spatial memory in vertebrates requires brain regions homologous to the mammalian hippocampus. Between vertebrate clades, however, these regions are anatomically distinct and appear to produce different spatial patterns of neural activity. We asked whether hippocampal activity is fundamentally different even between distant vertebrates that share a strong dependence on spatial memory. We studied tufted titmicefood-caching birds capable of remembering many concealed food locations. We found mammalian-like neural activity in the titmouse hippocampus, including sharp-wave ripples and anatomically organized place cells. In a non-food-caching bird species, spatial firing was less informative and was exhibited by fewer neurons. These findings suggest that hippocampal circuit mechanisms are similar between birds and mammals, but that the resulting patterns of activity may vary quantitatively with species-specific ethological needs.

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