Investigating the effects of caffeine on executive functions using traditional Stroop and a new ecologically-valid virtual reality task, the Jansari assessment of Executive Functions (JEF(©))
Soar K, Chapman E, Lavan N, Jansari AS, Turner JJ
Appetite · 25 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
- 2016-05-23 · Appetite · vol. 105 · págs. 156–163
- Editorial
- Elsevier BV
- Citado
- 41 citas · más que el 90% de estudios similares · 3.0× el promedio de su campo
- Referencias
- 47 trabajos
- Acceso
- Acceso abierto (copia en repositorio) · CC-BY-NC-ND
- Áreas de investigación
- Coffee research and impacts · Cognitive Functions and Memory · Neural and Behavioral Psychology Studies
- Palabras clave
- caffeine, executive function, virtual reality assessment, Stroop task, caffeinated coffee, decaffeinated coffee, prospective memory, planning, creative thinking, reaction time
- MeSH
- humans, hypertension, caffeine, central nervous system stimulants, double-blind method, mental fatigue, task performance and analysis, mood disorders, psychiatric status rating scales, coffee, adult, female, male, executive function, performance-enhancing substances, virtual reality
5 autores
- Kirstie Soar🇬🇧 · autor de correspondenciaUniversity of East London
- E. Chapman🇬🇧University of East London
- Nadine Lavan🇬🇧University of East London
- Ashok S. Jansari🇬🇧Goldsmiths University of London
- John J. Turner🇬🇧University of East London
Resumen
El texto original del estudio, en el idioma en que se publicó.
Objective
Caffeine has been shown to have effects on certain areas of cognition, but in executive functioning the research is limited and also inconsistent. One reason could be the need for a more sensitive measure to detect the effects of caffeine on executive function. This study used a new non-immersive virtual reality assessment of executive functions known as JEF(©) (the Jansari Assessment of Executive Function) alongside the 'classic' Stroop Colour-Word task to assess the effects of a normal dose of caffeinated coffee on executive function.
Method
Using a double-blind, counterbalanced within participants procedure 43 participants were administered either a caffeinated or decaffeinated coffee and completed the 'JEF(©)' and Stroop tasks, as well as a subjective mood scale and blood pressure pre- and post condition on two separate occasions a week apart. JEF(©) yields measures for eight separate aspects of executive functions, in addition to a total average score.
Results
Findings indicate that performance was significantly improved on the planning, creative thinking, event-, time- and action-based prospective memory, as well as total JEF(©) score following caffeinated coffee relative to the decaffeinated coffee. The caffeinated beverage significantly decreased reaction times on the Stroop task, but there was no effect on Stroop interference.
Conclusion
The results provide further support for the effects of a caffeinated beverage on cognitive functioning. In particular, it has demonstrated the ability of JEF(©) to detect the effects of caffeine across a number of executive functioning constructs, which weren't shown in the Stroop task, suggesting executive functioning improvements as a result of a 'typical' dose of caffeine may only be detected by the use of more real-world, ecologically valid tasks.
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