Brain regions showing a BOLD response to healthy food choice compared to healthy food reject in the no diet condition.

<p>Contrast images were overlaid onto a group mean anatomy image provided by SPM. (A) Regions where BOLD response correlated with healthy food choice versus healthy food reject independently of BMI. (B) Regions where BOLD response correlated positively (lentiform nucleus, red) and negatively (vmPFC, blue) with BMI during healthy food choice. (C) Graph of parameter estimates (<i>R</i>² = .363, p = .003) in the vmPFC peak (x = 3, y = 45, z = 0, <i>t</i> = 3.92, <i>p</i> uncorrected <. 005) as a function of BMI.</p

Task summary.

<p>Participants made decisions regarding whether or not to eat food items in three attentional conditions: (1) ND condition, (2) HD condition, and (3) TD condition.</p

Brain regions showing a BOLD response to healthy food choice in the tasty diet condition compared to the no diet condition.

<p>Contrast images were overlaid onto a group mean anatomy image provided by SPM. (A) Regions where BOLD response increased during healthy food choice in the TD as compared to the ND condition independently of BMI. (B) Regions where BOLD response correlated positively with BMI during healthy food choice. (C) Graph of parameter estimates from greater activation (<i>R</i>^<i>2</i> = .627, <i>p</i> < .001) in the left OFC peak (x = -21, y = 57, z = 9, <i>t</i> = 5.54, <i>p</i> uncorrected < .005) as a function of BMI. d. The graph of parameter estimates (R2 = .589, p < .001) in the right IFG peak (x = 36, y = -33, z = 15, <i>t</i> = 7.87, <i>p</i> uncorrected < .005) as a function of BMI.</p

Behavioral results summary.

<p>(A) The bar graph shows the percentage of exposures to healthy food when participants responded “yes” or “strong yes” as a function of block type. Asterisks indicate that healthy food choices in the HD and TD blocks differed significantly from ND at <i>p</i> < .001 (**) and <i>p</i> < .05 (*). Error bars represent 95% confidence intervals. (B) The scatter plots (with best-fitting regression line) show associations between the percentage of healthy food choices in the TD condition and BMI. Each data point represents the percentage of the time that a participant responded “yes” or “strong yes”.</p

Brain regions more activated in healthy food choice than healthy food reject in the no diet condition as a function of a participant’s BMI.

<p>Brain regions more activated in healthy food choice than healthy food reject in the no diet condition as a function of a participant’s BMI.</p

Brain regions that were more activated in healthy food choice in the healthy diet condition than the no diet condition as a function of a participant’s BMI.

<p>Brain regions that were more activated in healthy food choice in the healthy diet condition than the no diet condition as a function of a participant’s BMI.</p

Brain regions more activated in healthy food choice in the tasty diet condition than in the no diet one as a function of a participant’s BMI.

<p>Brain regions more activated in healthy food choice in the tasty diet condition than in the no diet one as a function of a participant’s BMI.</p

Brain regions with a BOLD response to healthy food choice in the healthy diet condition as compared to the no diet condition.

<p>Contrast images were overlaid onto a group mean anatomy image provided by SPM. (A) Regions where BOLD response increased during healthy food choice in the HD condition compared to the ND condition independent of BMI. (B) Regions where BOLD response correlated negatively (left insula, left inferior frontal operculum) with BMI during healthy food choice. (C) Graph of parameter estimates (<i>R</i>² = .381, <i>p</i> = .002) in the left insula peak (x = -33, y = -24, z = 12, <i>t</i> = 4.13, <i>p</i> uncorrected <. 005) as a function of BMI.</p