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Background: Cognitive experiences during the early stages of life play an important role in shaping the future behavior in mammals but also in insects, in which precocious learning can directly modify behaviors later in life depending on both the timing and the rearing environment. However, whether olfactory associative learning acquired early in the adult stage of insects affect memorizing of new learning events has not been studied yet. Methodology: Groups of adult honeybee workers that experienced an odor paired with a sucrose solution 5 to 8 days or 9 to 12 days after emergence were previously exposed to (i) a rewarded experience through the offering of scented food, or (ii) a non-rewarded experience with a pure volatile compound in the rearing environment. Principal Findings: Early rewarded experiences (either at 1-4 or 5-8 days of adult age) enhanced retention performance in 9-12-day-conditioned bees when they were tested at 17 days of age. The highest retention levels at this age, which could not be improved with prior rewarded experiences, were found for memories established at 5-8 days of adult age. Associative memories acquired at 9-12 days of age showed a weak effect on retention for some pure pre-exposed volatile compounds; whereas the sole exposure of an odor at any younger age did not promote long-term effects on learning performance. Conclusions: The associative learning events that occurred a few days after adult emergence improved memorizing in middle-aged bees. In addition, both the timing and the nature of early sensory inputs interact to enhance retention of new learning events acquired later in life, an important matter in the social life of honeybees. © 2009 Arenas et al.


Documento: Artículo
Título:Associative learning during early adulthood enhances later memory retention in honeybees
Autor:Arenas, A.; Fernández, V.M.; Farina, W.M.
Filiación:Grupo de Estudio de Insectos Sociales, IFIBYNE-CONICET, Departamento de Biodiversidad y Biologia Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, Buenos Aires, Argentina
Palabras clave:sucrose; volatile agent; carbohydrate; animal behavior; article; behavioral science; controlled study; honeybee; memory consolidation; nonhuman; reward; sensory stimulation; social behavior; state dependent learning; task performance; aging; animal; bee; conditioning; drug effect; environment; feeding behavior; learning; long term memory; longevity; odor; physiology; smelling; solution and solubility; volatilization; Apis mellifera; Apoidea; Hexapoda; Mammalia; Aging; Animals; Association Learning; Bees; Behavior, Animal; Carbohydrates; Conditioning (Psychology); Environment; Feeding Behavior; Longevity; Odors; Olfactory Perception; Retention (Psychology); Solutions; Volatilization
Título revista:PLoS ONE
Título revista abreviado:PLoS ONE
CAS:sucrose, 122880-25-5, 57-50-1; Carbohydrates; Solutions


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---------- APA ----------
Arenas, A., Fernández, V.M. & Farina, W.M. (2009) . Associative learning during early adulthood enhances later memory retention in honeybees. PLoS ONE, 4(12).
---------- CHICAGO ----------
Arenas, A., Fernández, V.M., Farina, W.M. "Associative learning during early adulthood enhances later memory retention in honeybees" . PLoS ONE 4, no. 12 (2009).
---------- MLA ----------
Arenas, A., Fernández, V.M., Farina, W.M. "Associative learning during early adulthood enhances later memory retention in honeybees" . PLoS ONE, vol. 4, no. 12, 2009.
---------- VANCOUVER ----------
Arenas, A., Fernández, V.M., Farina, W.M. Associative learning during early adulthood enhances later memory retention in honeybees. PLoS ONE. 2009;4(12).