Acute after-school screen time in children decreases impulse control and activation toward high-calorie food stimuli in brain regions related to reward and attention
Efraim M, Kirwan CB, Muncy NM, Tucker LA, Kwon S, Bailey BW
Brain imaging and behavior · 12 citas
Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación independiente
- Gobierno
- U.S. Department of Veterans Affairs
- Universidad u hospital
- Brigham Young University
- Gobierno
- CSRD VA
Según 3 financiadores declarados.
Publicación
- Publicado
- 2020-03-03 · Brain Imaging Behav · vol. 15 · número 1 · págs. 177–189
- Editorial
- Springer Science+Business Media
- Citado
- 13 citas · más que el 66% de estudios similares · 0.8× el promedio de su campo
- Referencias
- 62 trabajos
- Acceso
- De pago
- Áreas de investigación
- Neural and Behavioral Psychology Studies · Obesity, Physical Activity, Diet · Child Development and Digital Technology
- Palabras clave
- sedentary screen time, children, impulse control, response inhibition, high-calorie foods, food reward, orbitofrontal cortex, anterior cingulate cortex, superior parietal cortex, attention, hunger, active play, obesity, overweight, disinhibited eating
- MeSH
- brain, humans, magnetic resonance imaging, cross-over studies, cues, reward, attention, schools, food, child, screen time
6 autores
- Mary Efraim🇺🇸Brigham Young University
- C. Brock Kirwan🇺🇸Brigham Young University
- Nathan M. Muncy🇺🇸Brigham Young University
- Larry A. Tucker🇺🇸Brigham Young University
- Sunku Kwon🇺🇸Brigham Young University
- Bruce Wayne Bailey🇺🇸 · autor de correspondenciaBrigham Young University
Resumen
El texto original del estudio, en el idioma en que se publicó.
The purpose of this study was to examine the effects of after-school sedentary screen time on children's brain activation in reward and cognitive control regions in response to pictures of high- and low-calorie foods. Thirty-two children participated in a randomized crossover study with counterbalanced treatment conditions. Conditions took place on separate days after school and included three hours of active or sedentary play. After each condition, neural activation was assessed using functional magnetic resonance imaging (fMRI) while participants completed a go/no-go task involving pictures of high- and low-calorie foods. General response inhibition was also measured using the Stroop task. Hunger was measured upon arrival to the testing facility and just prior to fMRI scans. Mixed effects models were used to evaluate main effects and interactions. Significant stimulus by condition interactions were found in the right superior parietal cortex, and left anterior cingulate cortex (Ps ≤ 0.05). High-calorie pictures elicited significantly more activation bilaterally in the orbitofrontal cortex compared to low-calorie pictures (Ps ≤ 0.05). Stroop task performance diminished significantly following the sedentary condition compared to the active (P ≤ 0.05). Subjective feelings of hunger were not different between conditions at any point. Sedentary screen time was associated with significantly decreased response inhibition and a reversed brain activation pattern to pictures of high- and low-calorie foods compared to active play, in areas of the brain important to the modulation of food intake. Decreased attention, and impulse control following sedentary screen time may contribute to disinhibited eating that can lead to overweight and obesity.
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