Postrhinal cortex, rodent homolog of the primate parahippocampal cortex, processes spatial and contextual information. Our hypothesis of postrhinal function is that it serves to encode context, in part, by forming representations that link objects to places. To test this hypothesis, we recorded postrhinal neurons and local field potentials (LFPs) in rats trained on a two-choice, visual discrimination task. As predicted, many postrhinal neurons signaled object-location conjunctions. Another large proportion encoded egocentric motor responses. In addition, postrhinal LFPs exhibited strong oscillatory rhythms in the theta band, and many postrhinal neurons were phase locked to theta. Although correlated with running speed, theta power was lower than predicted by speed alone immediately before and after choice. However, theta power was significantly increased following incorrect decisions, suggesting a role in signaling error. These findings provide evidence that postrhinal cortex encodes representations that link objects to places and suggest postrhinal theta modulation extends to cognitive as well as spatial functions.
This research output has an Altmetric Attention Score of 10. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 February 2013.
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#3,854,973
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#4,354
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Outputs of similar age
#33,964
of 300,304 outputs
Outputs of similar age from Neuron
#51
of 115 outputs
Altmetric has tracked 28,841,988 research outputs across all sources so far. Compared to these this one has done well and is in the 86th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 9,980 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 33.3. This one has gotten more attention than average, scoring higher than 55% of its peers.
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We're also able to compare this research output to 115 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 54% of its contemporaries.
