Brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect
The effect of repeated exposure to sensory stimuli, with or without reward is well known to induce stimulus-specific modifications of behaviour, described as different forms of learning. In recent studies we showed that a brief single pre-exposure to the female-produced sex pheromone or even a preda...
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2012
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n3_p_Minoli http://hdl.handle.net/20.500.12110/paper_19326203_v7_n3_p_Minoli |
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paper:paper_19326203_v7_n3_p_Minoli2023-06-08T16:31:04Z Brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect Minoli, Sebastián A. pheromone sucrose article association behavior controlled study female locomotion male moth nerve cell nonhuman reward sensitization sensory cue sensory stimulation smelling spodoptera littoralis stimulus response taste animal animal behavior armyworm learning physiology Hexapoda Noctuidae Spodoptera littoralis Animals Behavior, Animal Learning Male Spodoptera The effect of repeated exposure to sensory stimuli, with or without reward is well known to induce stimulus-specific modifications of behaviour, described as different forms of learning. In recent studies we showed that a brief single pre-exposure to the female-produced sex pheromone or even a predator sound can increase the behavioural and central nervous responses to this pheromone in males of the noctuid moth Spodoptera littoralis. To investigate if this increase in sensitivity might be restricted to the pheromone system or is a form of general sensitization, we studied here if a brief pre-exposure to stimuli of different modalities can reciprocally change behavioural and physiological responses to olfactory and gustatory stimuli. Olfactory and gustatory pre-exposure and subsequent behavioural tests were carried out to reveal possible intra- and cross-modal effects. Attraction to pheromone, monitored with a locomotion compensator, increased after exposure to olfactory and gustatory stimuli. Behavioural responses to sucrose, investigated using the proboscis extension reflex, increased equally after pre-exposure to olfactory and gustatory cues. Pheromone-specific neurons in the brain and antennal gustatory neurons did, however, not change their sensitivity after sucrose exposure. The observed intra- and reciprocal cross-modal effects of pre-exposure may represent a new form of stimulus-nonspecific general sensitization originating from modifications at higher sensory processing levels. © 2012 Minoli et al. Fil:Minoli, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n3_p_Minoli http://hdl.handle.net/20.500.12110/paper_19326203_v7_n3_p_Minoli |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
pheromone sucrose article association behavior controlled study female locomotion male moth nerve cell nonhuman reward sensitization sensory cue sensory stimulation smelling spodoptera littoralis stimulus response taste animal animal behavior armyworm learning physiology Hexapoda Noctuidae Spodoptera littoralis Animals Behavior, Animal Learning Male Spodoptera |
| spellingShingle |
pheromone sucrose article association behavior controlled study female locomotion male moth nerve cell nonhuman reward sensitization sensory cue sensory stimulation smelling spodoptera littoralis stimulus response taste animal animal behavior armyworm learning physiology Hexapoda Noctuidae Spodoptera littoralis Animals Behavior, Animal Learning Male Spodoptera Minoli, Sebastián A. Brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect |
| topic_facet |
pheromone sucrose article association behavior controlled study female locomotion male moth nerve cell nonhuman reward sensitization sensory cue sensory stimulation smelling spodoptera littoralis stimulus response taste animal animal behavior armyworm learning physiology Hexapoda Noctuidae Spodoptera littoralis Animals Behavior, Animal Learning Male Spodoptera |
| description |
The effect of repeated exposure to sensory stimuli, with or without reward is well known to induce stimulus-specific modifications of behaviour, described as different forms of learning. In recent studies we showed that a brief single pre-exposure to the female-produced sex pheromone or even a predator sound can increase the behavioural and central nervous responses to this pheromone in males of the noctuid moth Spodoptera littoralis. To investigate if this increase in sensitivity might be restricted to the pheromone system or is a form of general sensitization, we studied here if a brief pre-exposure to stimuli of different modalities can reciprocally change behavioural and physiological responses to olfactory and gustatory stimuli. Olfactory and gustatory pre-exposure and subsequent behavioural tests were carried out to reveal possible intra- and cross-modal effects. Attraction to pheromone, monitored with a locomotion compensator, increased after exposure to olfactory and gustatory stimuli. Behavioural responses to sucrose, investigated using the proboscis extension reflex, increased equally after pre-exposure to olfactory and gustatory cues. Pheromone-specific neurons in the brain and antennal gustatory neurons did, however, not change their sensitivity after sucrose exposure. The observed intra- and reciprocal cross-modal effects of pre-exposure may represent a new form of stimulus-nonspecific general sensitization originating from modifications at higher sensory processing levels. © 2012 Minoli et al. |
| author |
Minoli, Sebastián A. |
| author_facet |
Minoli, Sebastián A. |
| author_sort |
Minoli, Sebastián A. |
| title |
Brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect |
| title_short |
Brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect |
| title_full |
Brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect |
| title_fullStr |
Brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect |
| title_full_unstemmed |
Brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect |
| title_sort |
brief exposure to sensory cues elicits stimulus-nonspecific general sensitization in an insect |
| publishDate |
2012 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v7_n3_p_Minoli http://hdl.handle.net/20.500.12110/paper_19326203_v7_n3_p_Minoli |
| work_keys_str_mv |
AT minolisebastiana briefexposuretosensorycueselicitsstimulusnonspecificgeneralsensitizationinaninsect |
| _version_ |
1768545347410329600 |