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The Maturational Characteristics of the GABA Input in the Anterior Piriform Cortex May Also Contribute to the Rapid Learning of the Maternal Odor during the Sensitive Period
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Oruro, Enver Miguel; Pardo, Grace V. E.; Lucion, Aldo Bolten; Calcagnotto, Maria Elisa; Idiart, Marco A. P. – Learning & Memory, 2020
During the first ten postnatal days (P), infant rodents can learn olfactory preferences for novel odors if they are paired with thermo-tactile stimuli that mimic components of maternal care. After P10, the thermo-tactile pairing becomes ineffective for conditioning. The current explanation for this change in associative learning is the alteration…
Descriptors: Neonates, Animals, Olfactory Perception, Brain Hemisphere Functions
Maturation of Pyramidal Cells in Anterior Piriform Cortex May Be Sufficient to Explain the End of Early Olfactory Learning in Rats
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Oruro, Enver Miguel; Pardo, Grace V. E.; Lucion, Aldo B.; Calcagnotto, Maria Elisa; Idiart, Marco A. P. – Learning & Memory, 2020
Studies have shown that neonate rodents exhibit high ability to learn a preference for novel odors associated with thermo-tactile stimuli that mimics maternal care. Artificial odors paired with vigorous strokes in rat pups younger than 10 postnatal days (P), but not older, rapidly induce an orientation-approximation behavior toward the conditioned…
Descriptors: Animal Behavior, Cytology, Learning Processes, Preferences