Effects of breakfast and caffeine on performance and mood in the late morning and after lunch
Smith AP, Kendrick AM, Maben AL
Neuropsychobiology · 37 citas
Etiquetas de revisión
Financiación no declaradaDatos neutrales que nuestra revisión registró sobre cómo se hizo este estudio. Describen el método, nunca si nos gusta el resultado.
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 no declarada
Publicación
- Publicado
- 2008-02-22 · Neuropsychobiology · vol. 26 · número 4 · págs. 198–204
- Editorial
- Karger Publishers
- Citado
- 98 citas · más que el 92% de estudios similares · 3.7× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 0 trabajos
- Acceso
- De pago
- Áreas de investigación
- Coffee research and impacts · Sleep and Work-Related Fatigue · Circadian rhythm and melatonin
- Palabras clave
- breakfast, caffeine, cognitive performance, mood, alertness, recognition memory, logical reasoning, semantic memory, sustained attention, postprandial effects
- MeSH
- humans, caffeine, double-blind method, feeding behavior, affect, mental recall, problem solving, verbal learning, arousal, attention, personality inventory, sex factors, circadian rhythm, adult, female, male, retention, psychology
3 autores
- Andrew Paul Smith🇬🇧University of Wales
- Anna Kendrick🇬🇧University of Wales
- Andrea Maben🇬🇧University of Wales
Resumen
El texto original del estudio, en el idioma en que se publicó.
The aim of the present study was to examine the effects of breakfast and caffeine on performance, mood and cardiovascular functioning in the late morning and after lunch. Forty-eight subjects were tested at 07.45 and subjects then assigned to one of the four conditions formed by combining caffeine and breakfast conditions. Subjects in the caffeine condition were given a dose of 4 mg/kg, the caffeine manipulation being double blind. At 11.15 subjects were given another coffee (subjects remained in the same caffeine condition) and had lunch at 12.30. Performance was examined prior to lunch (11.30) and after lunch (14.00). Effects of breakfast on recognition memory (lower false alarm rate) and logical reasoning (reduced accuracy) were found in the late morning but not after lunch. However, a semantic processing task was performed more slowly by the breakfast group after lunch. Caffeine improved performance on a sustained attention task, the logical reasoning task and semantic memory task. Subjects given caffeine also reported greater alertness and feelings of well-being, whereas the effects of breakfast on mood changed from the late morning to early afternoon. Few interactions between breakfast and caffeine conditions were obtained.
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