Rapid, Experience-Induced Enhancement in Odorant Discrimination by Anterior Piriform Cortex Neurons

Rapid, experience-induced enhancement in odorant discrimination by anterior piriform cortex neurons.

Current views of odorant discrimination by the mammalian olfactory system suggest that the piriform cortex serves as a site of odor object synthesis. Given the enormous number of odorant feature combinations possible in nature, however, it seems unlikely that cortical synthetic receptive fields (RFs) are innate but rather require experience for their formation. The present experiment addressed ...

Experience-induced Enhancement in Odorant Discrimination by Anterior Piriform Cortex Neurons

Associative encoding in anterior piriform cortex versus orbitofrontal cortex during odor discrimination and reversal learning.

Recent proposals have conceptualized piriform cortex as an association cortex, capable of integrating incoming olfactory information with descending input from higher order associative regions such as orbitofrontal cortex (OFC). If true, encoding in piriform cortex should reflect associative features prominent in these areas during associative learning involving olfactory cues. To test this hyp...

Diverse patterns of odor representation by neurons in the anterior piriform cortex of awake mice.

The mammalian piriform cortex receives direct synaptic input from the olfactory bulb and is likely the locus for the formation of odor percept. It remains unclear how individual cortical neurons encode olfactory information in unanesthetized animals. By single-cell recordings from head-restrained awake mice, we studied the odor response profiles of individual neurons in the anterior piriform co...

RAPID COMMUNICATION Synaptic Correlates of Odor Habituation in the Rat Anterior Piriform Cortex

Wilson, Donald A. Synaptic correlates of odor habituation in the depression of excitatory afferent input. The results demonrat anterior piriform cortex. J. Neurophysiol. 80: 998–1001, 1998. strate that adaptation to prolonged odor stimulation by aPCX Responses of anterior piriform cortex layer II /III neurons to both neurons is associated with a decrease in afferent synaptic odors and electrica...