Food as a visual cue: an analysis of perception, behavior and neural activity
| dc.contributor.author | Burger, Kyle S., author | |
| dc.contributor.author | Johnson, Susan L., advisor | |
| dc.contributor.author | Pagliassotti, Mike, advisor | |
| dc.date.accessioned | 2024-03-13T18:50:54Z | |
| dc.date.available | 2024-03-13T18:50:54Z | |
| dc.date.issued | 2009 | |
| dc.description.abstract | Intake regulation is a complex process impacted by a number of factors such as homeostatic, environmental and hedonic influences. Previous models of intake regulation tend to not take into account the large influence that the environment (e.g., visual cues) has on eating behavior. Little work has been completed that evaluates the interrelationship of environment, psychology and physiology relations' to eating behavior. A new model of intake regulation, including aspects of environment, psychology and physiology serves as the basis for this investigation. A series of three studies were completed. The first study evaluated the effect of visual cues i.e., portion size and blindfolding on energy intake. The second study used a computer program to assess individuals' subjective hedonic ratings (i.e., liking and wanting) of food images. The third study used neuroimaging to evaluate individuals' brain activity in response to food images. The first study demonstrated that energy intake increased 26% and bite size increased 2.3g/bite in response to presentation to a large portion. This was driven by overweight individuals. No portion by blindfolding interaction was found, indicating that blindfolding did not attenuate the portion size effect. It was observed in the second study that ratings for wanting were consistently higher that ratings for liking and fruits were the highest rated foods. In addition, in a fed state, overweight individuals rated large portions of food higher smaller portions of food for wanting, but not liking. Ratings for liking were related to activation of the posterior cingulate (decision making). It was also observed that dietary restraint was related to suppression of activity in the anterior cingulate (food reward). An increase in portion size appears to impact overweight individuals' energy intake (which occurs via changes in bite size) and ratings for wanting. A positive energy state could affect ratings for wanting but not liking. This decrease in wanting could be interpreted as dietary restraint which might function by decreasing brain activity in food reward related regions. Studying a comprehensive model including of intake environment, perception, behavior and physiology provides valuable insight to the interrelationship of all of eating behavior. | |
| dc.format.medium | born digital | |
| dc.format.medium | doctoral dissertations | |
| dc.identifier | ETDF_Burger_2009_3401021.pdf | |
| dc.identifier.uri | https://hdl.handle.net/10217/237608 | |
| dc.language | English | |
| dc.language.iso | eng | |
| dc.publisher | Colorado State University. Libraries | |
| dc.relation.ispartof | 2000-2019 | |
| dc.rights | Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. | |
| dc.rights.license | Per the terms of a contractual agreement, all use of this item is limited to the non-commercial use of Colorado State University and its authorized users. | |
| dc.subject | intake regulation | |
| dc.subject | obesity | |
| dc.subject | portion size | |
| dc.subject | visual cues | |
| dc.subject | nutrition | |
| dc.title | Food as a visual cue: an analysis of perception, behavior and neural activity | |
| dc.type | Text | |
| dcterms.rights.dpla | This Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| thesis.degree.discipline | Food Science and Human Nutrition | |
| thesis.degree.grantor | Colorado State University | |
| thesis.degree.level | Doctoral | |
| thesis.degree.name | Doctor of Philosophy (Ph.D.) |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- ETDF_Burger_2009_3401021.pdf
- Size:
- 4.28 MB
- Format:
- Adobe Portable Document Format