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The Sensory Features of a Food Cue Influence Its Ability to Act as an Incentive Stimulus and Evoke Dopamine Release in the Nucleus Accumbens Core

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Title: The Sensory Features of a Food Cue Influence Its Ability to Act as an Incentive Stimulus and Evoke Dopamine Release in the Nucleus Accumbens Core
Language: English
Authors: Singer, Bryan F., Bryan, Myranda A., Popov, Pavlo, Scarff, Raymond, Carter, Cody, Wright, Erin, Aragona, Brandon J., Robinson, Terry E.
Source: Learning & Memory. Nov 2016 12(11):595-606.
Availability: Cold Spring Harbor Laboratory Press. 500 Sunnyside Boulevard, Woodbury, NY 11797-2924. Tel: 800-843-4388; Tel: 516-367-8800; Fax: 516-422-4097; e-mail: cshpres@cshl.edu; Web site: http://learnmem.cshlp.org
Peer Reviewed: Y
Page Count: 12
Publication Date: 2016
Document Type: Journal Articles
Reports - Research
Descriptors: Food, Cues, Influences, Brain Hemisphere Functions, Brain, Animals, Visual Stimuli, Auditory Stimuli, Sensory Experience, Responses
DOI: 10.1101/lm.043026.116
ISSN: 1072-0502
Abstract: The sensory properties of a reward-paired cue (a conditioned stimulus; CS) may impact the motivational value attributed to the cue, and in turn influence the form of the conditioned response (CR) that develops. A cue with multiple sensory qualities, such as a moving lever-CS, may activate numerous neural pathways that process auditory and visual information, resulting in CRs that vary both within and between individuals. For example, CRs include approach to the lever-CS itself (rats that "sign-track"; ST), approach to the location of reward delivery (rats that "goal-track"; GT), or an "intermediate" combination of these behaviors. We found that the multimodal sensory features of the lever-CS were important to the development and expression of sign-tracking. When the lever-CS was covered, and thus could only be heard moving, STs not only continued to approach the lever location but also started to approach the food cup during the CS period. While still predictive of reward, the auditory component of the lever-CS was a much weaker conditioned reinforcer than the visible lever-CS. This plasticity in behavioral responding observed in STs closely resembled behaviors normally seen in rats classified as "intermediates." Furthermore, the ability of both the lever-CS and the reward-delivery to evoke dopamine release in the nucleus accumbens was also altered by covering the lever--dopamine signaling in STs resembled neurotransmission observed in rats that normally only GT. These data suggest that while the visible lever-CS was attractive, wanted, and had incentive value for STs, when presented in isolation, the auditory component of the cue was simply predictive of reward, lacking incentive salience. Therefore, the specific sensory features of cues may differentially contribute to responding and ensure behavioral flexibility.
Abstractor: As Provided
Entry Date: 2016
Accession Number: EJ1117459
Database: ERIC
FullText Text:
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  Data: <searchLink fieldCode="AR" term="%22Singer%2C+Bryan+F%2E%22">Singer, Bryan F.</searchLink><br /><searchLink fieldCode="AR" term="%22Bryan%2C+Myranda+A%2E%22">Bryan, Myranda A.</searchLink><br /><searchLink fieldCode="AR" term="%22Popov%2C+Pavlo%22">Popov, Pavlo</searchLink><br /><searchLink fieldCode="AR" term="%22Scarff%2C+Raymond%22">Scarff, Raymond</searchLink><br /><searchLink fieldCode="AR" term="%22Carter%2C+Cody%22">Carter, Cody</searchLink><br /><searchLink fieldCode="AR" term="%22Wright%2C+Erin%22">Wright, Erin</searchLink><br /><searchLink fieldCode="AR" term="%22Aragona%2C+Brandon+J%2E%22">Aragona, Brandon J.</searchLink><br /><searchLink fieldCode="AR" term="%22Robinson%2C+Terry+E%2E%22">Robinson, Terry E.</searchLink>
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  Data: <searchLink fieldCode="SO" term="%22Learning+%26+Memory%22"><i>Learning & Memory</i></searchLink>. Nov 2016 12(11):595-606.
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  Data: Cold Spring Harbor Laboratory Press. 500 Sunnyside Boulevard, Woodbury, NY 11797-2924. Tel: 800-843-4388; Tel: 516-367-8800; Fax: 516-422-4097; e-mail: cshpres@cshl.edu; Web site: http://learnmem.cshlp.org
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  Data: 10.1101/lm.043026.116
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  Data: The sensory properties of a reward-paired cue (a conditioned stimulus; CS) may impact the motivational value attributed to the cue, and in turn influence the form of the conditioned response (CR) that develops. A cue with multiple sensory qualities, such as a moving lever-CS, may activate numerous neural pathways that process auditory and visual information, resulting in CRs that vary both within and between individuals. For example, CRs include approach to the lever-CS itself (rats that "sign-track"; ST), approach to the location of reward delivery (rats that "goal-track"; GT), or an "intermediate" combination of these behaviors. We found that the multimodal sensory features of the lever-CS were important to the development and expression of sign-tracking. When the lever-CS was covered, and thus could only be heard moving, STs not only continued to approach the lever location but also started to approach the food cup during the CS period. While still predictive of reward, the auditory component of the lever-CS was a much weaker conditioned reinforcer than the visible lever-CS. This plasticity in behavioral responding observed in STs closely resembled behaviors normally seen in rats classified as "intermediates." Furthermore, the ability of both the lever-CS and the reward-delivery to evoke dopamine release in the nucleus accumbens was also altered by covering the lever--dopamine signaling in STs resembled neurotransmission observed in rats that normally only GT. These data suggest that while the visible lever-CS was attractive, wanted, and had incentive value for STs, when presented in isolation, the auditory component of the cue was simply predictive of reward, lacking incentive salience. Therefore, the specific sensory features of cues may differentially contribute to responding and ensure behavioral flexibility.
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        Value: 10.1101/lm.043026.116
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      – Text: English
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        PageCount: 12
        StartPage: 595
    Subjects:
      – SubjectFull: Food
        Type: general
      – SubjectFull: Cues
        Type: general
      – SubjectFull: Influences
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      – SubjectFull: Brain Hemisphere Functions
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      – SubjectFull: Sensory Experience
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      – SubjectFull: Responses
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      – TitleFull: The Sensory Features of a Food Cue Influence Its Ability to Act as an Incentive Stimulus and Evoke Dopamine Release in the Nucleus Accumbens Core
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