Independence of first- and second-order memories in newborn rabbits | Zendy

Gérard Coureaud | Zendy; Solène Languille | Zendy; Virginie Joly | Zendy; Benoı̂st Schaal | Zendy; Bernard Hars | Zendy

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Independence of first- and second-order memories in newborn rabbits

Author(s) -

Gérard Coureaud,

Solène Languille,

Virginie Joly,

Benoı̂st Schaal,

Bernard Hars

Publication year - 2011

Publication title -

learning and memory

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.228

H-Index - 136

eISSN - 1549-5485

pISSN - 1072-0502

DOI - 10.1101/lm.2145111

Subject(s) - recall , amnesia , psychology , odor , neuroscience , cognitive psychology , childhood amnesia , developmental psychology , olfactory perception , cognition , episodic memory , childhood memory

The mammary pheromone promotes the acquisition of novel odorants (CS1) in newborn rabbits. Here, experiments pinpoint that CS1 becomes able to support neonatal learning of other odorants (CS2). We therefore evaluated whether these first- and second-order memories remained dependent after reactivation. Amnesia induced after CS2 recall selectively blocked this memory, when recall and amnesia of CS1 left the souvenir of CS2 safe; this finding partially differed from results obtained in adult mammals. Thus, in this model of neonatal appetitive odor learning, second-order memory seems to depend on first-order memory for its formation but not for its maintenance.

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