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The Resource Baseline cortical activation to food pictures associated with change in weight, hunger, cognitive restraint, and disinhibition following bariatric surgery, Abigail Rose Ness

Baseline cortical activation to food pictures associated with change in weight, hunger, cognitive restraint, and disinhibition following bariatric surgery, Abigail Rose Ness

Creator
Author
Contributor
Summary
Introduction: Recent research suggests that bariatric surgery may be associated with functional brain changes. Baseline functional magnetic resonance imaging (fMRI) food motivation paradigms may reveal particular patterns of brain activation, which could indicate successful outcomes in weight and other behavioral outcomes following bariatric surgery. The aim of the present study was to determine if activation to food images during a baseline fMRI food motivation paradigm is associated with post-surgical laparoscopic adjustable gastric banding (LAGB) outcomes. We hypothesized that areas previously implicated in food motivation and reward, as well as, cognitive control(inferior, middle, medial superior prefrontal cortex (PFC))would be associated with changes in weight, hunger, cognitive restraint, and disinhibition. Methods: 18 participants viewed food and non-food pictures from a well-established food motivation paradigm during an fMRI scanning session prior to LAGB surgery. Weight and three factor eating questionnaire (TFEQ) scores on cognitive restraint, disinhibition, and hunger were assessed pre-surgery and three and six months post-surgery. fMRI data were analyzed using Brain Voyager QX statistical package. Results: Whole brain analyses, corrected for multiple comparisons, were performed to analyze the relationship between pre-surgical brain activation and subsequent weight loss. Increased activity in frontal regions associated with cognitive control (medial, middle, superior frontal gyrus), with the exception of inferior frontal gyrus, was associated with more weight loss following LAGB. Increased activity in posterior cingulate cortex (PCC) was also associated with greater weight loss post-LAGB. In contrast, decreased brain activity to food cues in frontal areas related to control(inferior, middle, medial, and superior frontal gyri)and increased activity in areas related to reward and motivation (PCC) at baseline was associated with greater improvement in hunger, cognitive restraint, and disinhibition following surgery. Discussion: This is the first study to use fMRI to predict LAGB outcomes. We found that neural activity in previously established regions associated with food motivation, visual attention, and higher order processing predict weight loss following bariatric surgery. These preliminary findings highlight the role of neural circuitry in the success and maintenance of weight loss and suggest a possible future use of fMRI in screening LAGB surgery candidates
Language
eng
Work
Publication
Extent
1 online resource (33 pages)
Note
  • "A thesis in Psychology."
  • Advisor: Jared Bruce
  • Vita
Contents
  • Abstract
  • List of tables
  • List of illustrations
  • List of abbreviations
  • Review of the literature
  • Methodology
  • Results
  • Discussion
  • References
Instance
Label
Baseline cortical activation to food pictures associated with change in weight, hunger, cognitive restraint, and disinhibition following bariatric surgery
Title
Baseline cortical activation to food pictures associated with change in weight, hunger, cognitive restraint, and disinhibition following bariatric surgery
Statement of responsibility
Abigail Rose Ness
Creator
Contributor
Author
Subject
Genre
Language
eng
Summary
Introduction: Recent research suggests that bariatric surgery may be associated with functional brain changes. Baseline functional magnetic resonance imaging (fMRI) food motivation paradigms may reveal particular patterns of brain activation, which could indicate successful outcomes in weight and other behavioral outcomes following bariatric surgery. The aim of the present study was to determine if activation to food images during a baseline fMRI food motivation paradigm is associated with post-surgical laparoscopic adjustable gastric banding (LAGB) outcomes. We hypothesized that areas previously implicated in food motivation and reward, as well as, cognitive control(inferior, middle, medial superior prefrontal cortex (PFC))would be associated with changes in weight, hunger, cognitive restraint, and disinhibition. Methods: 18 participants viewed food and non-food pictures from a well-established food motivation paradigm during an fMRI scanning session prior to LAGB surgery. Weight and three factor eating questionnaire (TFEQ) scores on cognitive restraint, disinhibition, and hunger were assessed pre-surgery and three and six months post-surgery. fMRI data were analyzed using Brain Voyager QX statistical package. Results: Whole brain analyses, corrected for multiple comparisons, were performed to analyze the relationship between pre-surgical brain activation and subsequent weight loss. Increased activity in frontal regions associated with cognitive control (medial, middle, superior frontal gyrus), with the exception of inferior frontal gyrus, was associated with more weight loss following LAGB. Increased activity in posterior cingulate cortex (PCC) was also associated with greater weight loss post-LAGB. In contrast, decreased brain activity to food cues in frontal areas related to control(inferior, middle, medial, and superior frontal gyri)and increased activity in areas related to reward and motivation (PCC) at baseline was associated with greater improvement in hunger, cognitive restraint, and disinhibition following surgery. Discussion: This is the first study to use fMRI to predict LAGB outcomes. We found that neural activity in previously established regions associated with food motivation, visual attention, and higher order processing predict weight loss following bariatric surgery. These preliminary findings highlight the role of neural circuitry in the success and maintenance of weight loss and suggest a possible future use of fMRI in screening LAGB surgery candidates
http://bibfra.me/vocab/relation/advisor
azlouAoFpOE
Cataloging source
UMK
http://library.link/vocab/creatorName
Ness, Abigail Rose
Degree
degree
Dissertation note
(Department of Psychology).
Dissertation year
2013.
Granting institution
University of Missouri-Kansas City,
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/relatedWorkOrContributorName
Bruce, Jared M.
http://library.link/vocab/subjectName
  • Obesity
  • Psychology
  • Cognitive psychology
Label
Baseline cortical activation to food pictures associated with change in weight, hunger, cognitive restraint, and disinhibition following bariatric surgery, Abigail Rose Ness
Instantiates
Publication
Note
  • "A thesis in Psychology."
  • Advisor: Jared Bruce
  • Vita
Antecedent source
not applicable
Bibliography note
Includes bibliographical references (pages 25-32)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Contents
Abstract -- List of tables -- List of illustrations -- List of abbreviations -- Review of the literature -- Methodology -- Results -- Discussion -- References
Control code
904962706
Dimensions
unknown
Extent
1 online resource (33 pages)
File format
one file format
Form of item
online
Level of compression
mixed
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations.
Quality assurance targets
not applicable
Specific material designation
remote
System control number
(OCoLC)904962706
System details
  • The full text of the thesis is available as an Adobe Acrobat .pdf file; Adobe Acrobat Reader required to view the file
  • Mode of access: World Wide Web
Label
Baseline cortical activation to food pictures associated with change in weight, hunger, cognitive restraint, and disinhibition following bariatric surgery, Abigail Rose Ness
Publication
Note
  • "A thesis in Psychology."
  • Advisor: Jared Bruce
  • Vita
Antecedent source
not applicable
Bibliography note
Includes bibliographical references (pages 25-32)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier.
Color
black and white
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Contents
Abstract -- List of tables -- List of illustrations -- List of abbreviations -- Review of the literature -- Methodology -- Results -- Discussion -- References
Control code
904962706
Dimensions
unknown
Extent
1 online resource (33 pages)
File format
one file format
Form of item
online
Level of compression
mixed
Media category
computer
Media MARC source
rdamedia.
Media type code
  • c
Other physical details
illustrations.
Quality assurance targets
not applicable
Specific material designation
remote
System control number
(OCoLC)904962706
System details
  • The full text of the thesis is available as an Adobe Acrobat .pdf file; Adobe Acrobat Reader required to view the file
  • Mode of access: World Wide Web

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