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An independent, landmark-dominated head-direction signal

An independent, landmark-dominated head-direction signal

An independent, landmark-dominated head-direction signal in dysgranular retrosplenial cortex
Pierre-Yves Jacob, Giulio Casali, Laure Spieser, Hector Page, Dorothy Overington & Kate Jeffery.

We investigated how landmarks influence the brain’s computation of head direction and found that in a bidirectionally symmetrical environment, some neurons in dysgranular retrosplenial cortex showed bidirectional firing patterns. This indicates dominance of neural activity by local environmental cues even when these conflicted with the global head direction signal. It suggests a mechanism for associating landmarks to or dissociating them from the head direction signal, according to their directional stability and/or utility.

Nat Neurosci advance online publication. doi: 10.1038/nn.4465. Jacob1 2017

The full paper (Jacob1 2017) may be downloaded by members of the Animal Navigation Forum, which is open to members and non-members at the link below . .

  • 10 January 2017
  • Animal Navigation Group

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