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Cognitive-affective Correlates of Pediatric Food Intake: Neural Food cue Reactivity and Reward-Related Decision-Making
Cognitive-affective Correlates of Pediatric Food Intake: Neural Food cue Reactivity and Reward-Related Decision-Making
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152112
- ISBN
- 9798384211495
- DDC
- 641.555
- 서명/저자
- Cognitive-affective Correlates of Pediatric Food Intake: Neural Food cue Reactivity and Reward-Related Decision-Making
- 발행사항
- [Sl] : The Pennsylvania State University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 258 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
- 주기사항
- Advisor: Keller, Kathleen L.
- 학위논문주기
- Thesis (Ph.D.)--The Pennsylvania State University, 2024.
- 초록/해제
- 요약Between 2017 and 2020, over 20% of children in the United States had obesity. As diet and behavioral interventions to treat and prevent obesity are ineffective or produce small and variable effects, a better understanding of the factors that facilitate increased energy intake is needed. Theoretical models posit that psychological, physiological, and neural responses to food cues (i.e., food cue reactivity) and reward-related decision-making (RRDM) promote overeating and susceptibility to obesity in the present-day food environment. These theories are supported by research showing behavioral and neural responses to food cues are associated with eating behaviors and weight gain, and reward learning, executive functioning, and decision-making are altered in obesity. Nevertheless, it remains unclear how food cue reactivity and RRDM relate to pediatric eating behaviors. Therefore, this dissertation examined how neural responses to food cues (chapters 2 and 3) and decision-making processes (chapter 4) relate to laboratory-assessed food intake in children.To shed light on the mechanisms that increase intake in response to large portions of food (i.e., the portion size effect; PSE), chapter 2 examined neural responses to food and non-food (office supplies) images presented in larger and smaller (i.e., age-appropriate) amounts. On average, neural responses to amount (larger vs. smaller) were stronger but less extensive in visual processing areas for foods relative to office supplies. Neural responses to food energy density (kcal/g; higher vs. lower) differed in extent between larger and smaller amounts in regions implicated in value-based decision-making (orbitofrontal cortex, ventromedial prefrontal cortex). These results highlight potentially distinct neural pathways for encoding food energy content and quantity.To build on chapter 2, chapter 3 examined how neural responses to food portion size cues relate to children's susceptibility to the PSE. To do so, neural responses to food amount (larger vs. smaller) were regressed on individual-level linear and quadratic relationships between intake and portion size, estimated from children's intake data at four meals that varied in portion size. Relationships were examined within the appetitive network and cerebellum to extend prior work examining these associations in reward- and control-related brain regions. Response to food amount in cerebellar lobules IV-VI was negatively associated with the quadratic portion size slope; greater activation to larger portions was associated with smaller increases or larger decreases in intake as portions got larger, while greater activation to smaller portions was associated with greater increases in intake as portions got larger. Neural responses within the appetitive network were not associated with linear or quadratic portion size slopes. These results suggest decreased cerebellar activation in response larger amounts of food may increase children's susceptibility to overeating when faced with "supersized" portions of food.While chapters 2 and 3 shed light on the neural correlates of the PSE, they did not elucidate specific cognitive or affective processes that drive eating behaviors. Therefore, chapter 4 examined the relationships between decision-making processes and food intake in children. Decision-making was assessed with a task where children make selections with unknown reward outcomes, and decision-making processes were quantified with a reinforcement learning model. Food intake was measured with three paradigms: (1) a standard ad libitummeal, (2) an eating in the absence of hunger (EAH) protocol, and (3) a palatable buffet meal.
- 일반주제명
- Meals
- 일반주제명
- Photographs
- 일반주제명
- Fruits
- 일반주제명
- Body mass index
- 일반주제명
- Eating behavior
- 일반주제명
- Decision making
- 일반주제명
- Obesity
- 일반주제명
- Behavioral psychology
- 일반주제명
- Health sciences
- 일반주제명
- Medical imaging
- 일반주제명
- Pediatrics
- 일반주제명
- Public health
- 기본자료저록
- Dissertations Abstracts International. 86-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■007cr#unu||||||||
■020 ▼a9798384211495
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■035 ▼a(MiAaPQ)PennState24410baf44
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a641.555
■1001 ▼aFuchs, Bari Allison.
■24510▼aCognitive-affective Correlates of Pediatric Food Intake: Neural Food cue Reactivity and Reward-Related Decision-Making
■260 ▼a[Sl]▼bThe Pennsylvania State University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a258 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-03, Section: B.
■500 ▼aAdvisor: Keller, Kathleen L.
■5021 ▼aThesis (Ph.D.)--The Pennsylvania State University, 2024.
■520 ▼aBetween 2017 and 2020, over 20% of children in the United States had obesity. As diet and behavioral interventions to treat and prevent obesity are ineffective or produce small and variable effects, a better understanding of the factors that facilitate increased energy intake is needed. Theoretical models posit that psychological, physiological, and neural responses to food cues (i.e., food cue reactivity) and reward-related decision-making (RRDM) promote overeating and susceptibility to obesity in the present-day food environment. These theories are supported by research showing behavioral and neural responses to food cues are associated with eating behaviors and weight gain, and reward learning, executive functioning, and decision-making are altered in obesity. Nevertheless, it remains unclear how food cue reactivity and RRDM relate to pediatric eating behaviors. Therefore, this dissertation examined how neural responses to food cues (chapters 2 and 3) and decision-making processes (chapter 4) relate to laboratory-assessed food intake in children.To shed light on the mechanisms that increase intake in response to large portions of food (i.e., the portion size effect; PSE), chapter 2 examined neural responses to food and non-food (office supplies) images presented in larger and smaller (i.e., age-appropriate) amounts. On average, neural responses to amount (larger vs. smaller) were stronger but less extensive in visual processing areas for foods relative to office supplies. Neural responses to food energy density (kcal/g; higher vs. lower) differed in extent between larger and smaller amounts in regions implicated in value-based decision-making (orbitofrontal cortex, ventromedial prefrontal cortex). These results highlight potentially distinct neural pathways for encoding food energy content and quantity.To build on chapter 2, chapter 3 examined how neural responses to food portion size cues relate to children's susceptibility to the PSE. To do so, neural responses to food amount (larger vs. smaller) were regressed on individual-level linear and quadratic relationships between intake and portion size, estimated from children's intake data at four meals that varied in portion size. Relationships were examined within the appetitive network and cerebellum to extend prior work examining these associations in reward- and control-related brain regions. Response to food amount in cerebellar lobules IV-VI was negatively associated with the quadratic portion size slope; greater activation to larger portions was associated with smaller increases or larger decreases in intake as portions got larger, while greater activation to smaller portions was associated with greater increases in intake as portions got larger. Neural responses within the appetitive network were not associated with linear or quadratic portion size slopes. These results suggest decreased cerebellar activation in response larger amounts of food may increase children's susceptibility to overeating when faced with "supersized" portions of food.While chapters 2 and 3 shed light on the neural correlates of the PSE, they did not elucidate specific cognitive or affective processes that drive eating behaviors. Therefore, chapter 4 examined the relationships between decision-making processes and food intake in children. Decision-making was assessed with a task where children make selections with unknown reward outcomes, and decision-making processes were quantified with a reinforcement learning model. Food intake was measured with three paradigms: (1) a standard ad libitummeal, (2) an eating in the absence of hunger (EAH) protocol, and (3) a palatable buffet meal.
■590 ▼aSchool code: 0176.
■650 4▼aMeals
■650 4▼aPhotographs
■650 4▼aFruits
■650 4▼aBody mass index
■650 4▼aEating behavior
■650 4▼aMagnetic resonance imaging
■650 4▼aDecision making
■650 4▼aObesity
■650 4▼aBehavioral psychology
■650 4▼aHealth sciences
■650 4▼aMedical imaging
■650 4▼aPediatrics
■650 4▼aPublic health
■690 ▼a0384
■690 ▼a0566
■690 ▼a0574
■690 ▼a0767
■690 ▼a0573
■71020▼aThe Pennsylvania State University.
■7730 ▼tDissertations Abstracts International▼g86-03B.
■790 ▼a0176
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162922▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


