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Titolo:
Side-specificity of olfactory learning in the honeybee: Generalization between odors and sides
Autore:
Sandoz, JC; Menzel, R;
Indirizzi:
Free Univ Berlin, Inst Biol Neurobiol, D-14195 Berlin, Germany Free Univ Berlin Berlin Germany D-14195 urobiol, D-14195 Berlin, Germany
Titolo Testata:
LEARNING & MEMORY
fascicolo: 5, volume: 8, anno: 2001,
pagine: 286 - 294
SICI:
1072-0502(200109/10)8:5<286:SOOLIT>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
APIS-MELLIFERA; MUSHROOM BODIES; ANTENNAL LOBES; BRAIN; MEMORY; BLOCKING; BEE; REPRESENTATIONS; RECOGNITION; CONNECTIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Menzel, R Free Univ Berlin, Inst Biol Neurobiol, D-14195 Berlin, Germany Free Univ Berlin Berlin Germany D-14195 -14195 Berlin, Germany
Citazione:
J.C. Sandoz e R. Menzel, "Side-specificity of olfactory learning in the honeybee: Generalization between odors and sides", LEARN MEM, 8(5), 2001, pp. 286-294

Abstract

Honeybees (Apis mellifera) can be trained to associate an odor stimulus with a sucrose reward. The neural structures involved in the detection and integration of olfactory stimuli are represented bilaterally in the brain. Little is known about the respective roles of the two sides of the brain in olfactory learning. Does each side learn independently of the other, or do they communicate, and if so, to what extent and at what level of neural integration? We addressed these questions using the proboscis extension response (PER) conditioning paradigm applied in a preparation that allows the separation of the two input sides during olfactory stimulations. Bees conditioned to two odorants A and B, one being learned on each side (A+/B+ training), showed in extinction tests rather unspecific responses: They responded toboth odorants on both sides. This could be attributable to either a transfer of the learned information between sides, or to a generalization betweenodorants on each side. By subjecting bees to conditioning on one side only(A+/0 training), we found that the learned information is indeed transferred between sides. However, when bees were trained explicitly to give opposite values to the two odorants on the two sides (A+B-/B+A- training), they showed clear side-specific response patterns to these odorants. These results are used in the elaboration of a functional model of laterality of olfactory learning and memory processing in the honeybee brain.

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Documento generato il 04/04/20 alle ore 12:00:58