1. Proximal perimeter encoding in the rat rostral thalamus
- Author
-
Md. Nurul Islam, Mathias L. Mathiasen, John Patrick Aggleton, Katharina Ulrich, Shane M. O'Mara, and Paweł Matulewicz
- Subjects
Male ,0301 basic medicine ,Thalamus ,Midline Thalamic Nuclei ,lcsh:Medicine ,Synaptic Transmission ,Article ,Physics::Fluid Dynamics ,Perimeter ,03 medical and health sciences ,0302 clinical medicine ,Encoding (memory) ,Animals ,Spatial representation ,lcsh:Science ,030304 developmental biology ,Neurons ,Physics ,0303 health sciences ,Multidisciplinary ,Quantitative Biology::Neurons and Cognition ,lcsh:R ,Rats ,030104 developmental biology ,Anterior Thalamic Nuclei ,Ambient lighting ,lcsh:Q ,Neuroscience ,030217 neurology & neurosurgery - Abstract
Perimeters are an important part of the environment, delimiting its geometry. Here, we investigated how perimeters (vertical walls; vertical drops) affect neuronal responses in the rostral thalamus (the anteromedial and parataenial nuclei in particular). We found neurons whose firing patterns reflected the presence of walls and drops, irrespective of arena shape. Their firing patterns were stable across multiple sleep-wake cycles and were independent of ambient lighting conditions. Thus, rostral thalamic nuclei may participate in spatial representation by encoding the perimeters of environments.
- Published
- 2019