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Start Over Author "Rolls, Barbara J." Publication Type Academic Journals
481 results on '"Rolls, Barbara J."'

20. Toward a science-based classification of processed foods to support meaningful research and effective health policies.

Author

Trumbo, Paula R., Bleiweiss-Sande, Rachel, Campbell, Jessica K., Decker, Eric, Drewnowski, Adam, Erdman, John W., Ferruzzi, Mario G., Forde, Ciaran G., Gibney, Michael J., Hess, Julie M., Klurfeld, David M., Latulippe, Marie E., O’Connor, Lauren E., Reimers, Kristin J., Rolls, Barbara J., Schulz, Jackie, Weaver, Connie, and Lynn Yu

Published
2024
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23. The Cerebellar Response to Visual Portion Size Cues Is Associated with the Portion Size Effect in Children.

Author

Fuchs, Bari A., Pearce, Alaina L., Rolls, Barbara J., Wilson, Stephen J., Rose, Emma J., Geier, Charles F., Garavan, Hugh, and Keller, Kathleen L.

Abstract

The neural mechanisms underlying susceptibility to eating more in response to large portions (i.e., the portion size effect) remain unclear. Thus, the present study examined how neural responses to portion size relate to changes in weight and energy consumed as portions increase. Associations were examined across brain regions traditionally implicated in appetite control (i.e., an appetitive network) as well as the cerebellum, which has recently been implicated in appetite-related processes. Children without obesity (i.e., BMI-for-age-and-sex percentile < 90; N = 63; 55% female) viewed images of larger and smaller portions of food during fMRI and, in separate sessions, ate four meals that varied in portion size. Individual-level linear and quadratic associations between intake (kcal, grams) and portion size (i.e., portion size slopes) were estimated. The response to portion size in cerebellar lobules IV–VI was associated with the quadratic portion size slope estimated from gram intake; a greater response to images depicting smaller compared to larger portions was associated with steeper increases in intake with increasing portion sizes. Within the appetitive network, neural responses were not associated with portion size slopes. A decreased cerebellar response to larger amounts of food may increase children's susceptibility to overeating when excessively large portions are served. [ABSTRACT FROM AUTHOR]

Published
2024
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30. Children at high familial risk for obesity show executive functioning deficits prior to development of excess weight status.

Author

Pearce, Alaina L., Hallisky, Kyle, Rolls, Barbara J., Wilson, Stephen J., Rose, Emma, Geier, Charles F., Garavan, Hugh, and Keller, Kathleen L.

Subjects
EXECUTIVE function, DUAL-energy X-ray absorptiometry, CHILDHOOD obesity, RESPONSE inhibition, OBESITY
Abstract

Objective: The objective of this study was to determine whether children with healthy weight who vary by familial risk for obesity differ in executive functioning. Methods: Children (age 7–8 years) without obesity (n = 93, 52% male) who differed by familial risk for obesity (based on maternal weight status) completed go/no‐go and stop‐signal tasks to assess inhibitory control and an N‐back task to assess working memory. Dual energy x‐ray absorptiometry measured adiposity. Linear and mixed‐effect models assessed unique effects and relative importance analysis‐quantified relative effects of familial risk and percent body fat. Results: Children at high compared with low familial risk showed worse inhibitory control; however, child adiposity was not associated with inhibitory control. Both high familial risk and greater child adiposity were associated with worse N‐back performance when cognitive demand was high (2‐back), but not low (0‐ and 1‐back). The relative effect of familial risk on executive functioning was 2.7 to 16 times greater than the relative effect of percent body fat. Conclusions: These findings provide initial evidence that deficits in executive functioning may precede the development of obesity in children at high familial risk for this disease. Additional family risk studies are needed to elucidate the pathways through which maternal obesity influences child executive functioning and risk for obesity. [ABSTRACT FROM AUTHOR]

Published
2023
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36. Dimensions of sleep quality are related to objectively measured eating behaviors among children at high familial risk for obesity.

Author

Zuraikat, Faris M., Bauman, Jonathan M., Setzenfand, Marissa N., Arukwe, David U., Rolls, Barbara J., and Keller, Kathleen L.

Subjects
SLEEP quality, CHILD behavior, FOOD habits, COMPULSIVE eating, OBESITY, HUNGER
Abstract

Objective: The aim of this study was to evaluate whether dimensions of sleep quality were associated with homeostatic and hedonic eating behaviors among children with healthy weight (BMI‐for‐age < 90%) but varying maternal weight status. Methods: A total of 77 children (mean [SD], age: 7.4 [0.6] years; BMI z score: −0.10 [0.7]) with healthy weight and high (n = 32) or low (n = 45) familial obesity risk based on maternal weight status were served an ad libitum meal (homeostatic eating) followed by palatable snacks to assess eating in the absence of hunger (EAH; hedonic eating). Habitual sleep quality was quantified from seven nights of wrist actigraphy. Partial correlations, adjusted for child energy needs, pre‐meal hunger, food liking, and socioeconomic status, evaluated associations of sleep with meal intake and EAH. Additionally, sleep‐by‐obesity risk interactions were assessed. Results: Greater sleep fragmentation was associated with higher homeostatic meal energy intake, but only among children at high familial obesity risk (p value for interaction = 0.001; β high risk = 48.6, p = 0.001). Sleep fragmentation was not associated with total EAH but was related to higher and lower intake of carbohydrates (r = 0.33, p = 0.003) and fat (r = −0.33, p = 0.003), respectively. Conclusions: Adverse associations of poor sleep with energy intake may be amplified among children already predisposed to obesity. Furthermore, that fragmented sleep relates to preferential intake of carbohydrates over fat during EAH may suggest alterations in taste preferences with poor sleep. [ABSTRACT FROM AUTHOR]

Published
2023
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