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dc.contributor.authorDavies, Kirsty Mary
dc.date.accessioned2018-04-19T10:39:44Z
dc.date.available2018-04-19T10:39:44Z
dc.date.issued2018-07-21
dc.date.submitted2017-04-17
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/275021
dc.description.abstractA considerable percentage of the UK population are overweight (BMI≥25kg/m2) or obese (BMI≥30kg/m2). However, despite living in the same culture and exposed to a similar “obesogenic” environment, some individuals gain weight while others do not (French et al., 1995). This variability in weight control has been suggested to be associated with individual differences in eating behaviours (French et al., 2012). Certain factors, such as motivation (hedonic hunger and hunger status) as well as cognition (impulsivity and memory) may have an impact on eating behaviours and their relationship with weight control. Thus, the objective of this thesis was to explore individual differences in eating behaviours and investigate their relationship with motivation, cognition and weight control. The first experiment (Chapter 2) investigated the relationship between eating behaviours, motivation (hedonic hunger) and food consumption during an ad-libitum buffet. This study suggests that restrained eating behaviour was associated with higher overall energy intake, greater energy intake from unhealthy foods and greater energy intake from both high and low energy dense foods. However, no interactions between restraint and disinhibition or hedonic hunger was seen. Following this, the second experiment (Chapter 3) examined whether eating behaviours, such as disinhibition, restraint and hunger, change during a weight loss and weight maintenance period and whether they could predict changes in weight during these periods. Indeed, the results suggest that lower baseline restraint could predict greater weight loss during a low-energy liquid diet and interventions which increase restraint and decrease disinhibition may be beneficial for longer term weight maintenance. The third experiment (Chapter 4) was designed to investigate whether motivation and cognition influences eating behaviours. The results suggest that hedonic hunger, restraint and impulsivity may lead to higher levels of disinhibited eating behaviour. This study was also able to replicate the findings of previous literature suggesting that episodic memory is negatively associated with BMI (Cheke et al., 2016). Finally, following on from the previous study results, the fourth experiment (Chapter 5) included a more diverse sample of participants including dieters. The results provide evidence that individuals on a diet have poorer episodic memory ability than those currently not on a diet. This study also extended previous results suggesting that hedonic hunger (but also episodic memory and hunger) are important factors in disinhibited eating. Hedonic hunger was also shown to be important in levels of hunger.
dc.description.sponsorshipMRC Human Nutrition Research
dc.language.isoen
dc.rightsAll rights reserved
dc.rightsAll Rights Reserveden
dc.rights.urihttps://www.rioxx.net/licenses/all-rights-reserved/en
dc.subjectObesity
dc.subjectEating behaviours
dc.subjectdisinhibition
dc.subjectrestraint
dc.subjecthunger
dc.subjectimpulsivity
dc.subjectepisodic memory
dc.subjectweight control
dc.subjectdieting
dc.subjectfasting
dc.subjectbmi
dc.subjecthedonic hunger
dc.subjectThree factor eating questionnaire
dc.subjectbarratt impulsive scale
dc.subjectobese
dc.subjectmotivation
dc.subjectcognition
dc.subjectfood
dc.subjecteating
dc.subjectweight loss
dc.subjectweight gain
dc.subjectweight maintenance
dc.titleIndividual Differences in Eating Behaviours and Their Relationship with Motivation, Cognition and Weight Control
dc.typeThesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnameDoctor of Philosophy (PhD)
dc.publisher.institutionUniversity of Cambridge
dc.publisher.departmentPsychology
dc.date.updated2018-04-19T09:05:25Z
dc.identifier.doi10.17863/CAM.22188
dc.publisher.collegeHughes Hall
dc.type.qualificationtitlePhD in Experimental Psychology
cam.supervisorClayton, Nicola
cam.supervisorJebb, Susan
cam.thesis.fundingtrue
rioxxterms.freetoread.startdate2019-04-19


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