A low- dose of caffeine suppresses EEG alpha power and improves working memory in healthy University males

Ajjimaporn, Amornpan; Noppongsakit, Prapan; Ramyarangsi, Papatsorn; Siripornpanich, Vorasith; Chauchaiyakul, Rungchai

doi:10.1016/j.physbeh.2022.113955

Cited by 10 publications

(9 citation statements)

References 34 publications

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Section: Discussionmentioning

confidence: 99%

“…In a study based on caffeine intake on EEG alpha power, caffeinated drinks suppressed the alpha wave more than the frontal, central, and occipital lobes and improved working memory [ 15 ]. Additionally, the attenuation of alpha power in the central and occipital cortical subregions is associated with better executive functioning and working memory [ 15 , 16 ]. According to the results of cortex-based analysis, intake of HB significantly increased most of the spectral powers in the frontal and central regions compared to other regions.…”

Section: Discussionmentioning

confidence: 99%

“…Generally, caffeine suppresses alpha waves across the cortex as caffeine acts as a psychostimulant, resulting in cortical activation, excitability, and enhanced arousal [ 33 ]. It has been hypothesized that caffeine binds to adenosine receptors and decreases the inhibition of neuronal firing [ 15 ]. Moreover, improved working memory and attention have been linked to alpha wave suppression [ 15 ].…”

Section: Discussionmentioning

confidence: 99%

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Neuroimaging Approach: Effects of Hot and Cold Germinated Wheat Beverages on Electroencephalographic (EEG) Activity of the Human Brain

Aung,

Kim,

Kwak

et al. 2023

Foods

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Neuroimaging studies using electroencephalography (EEG) have been crucial in uncovering brain activity in sensory perception, emotion regulation, and decision-making. Despite tea’s global popularity, its temperature-related neural basis remains underexplored. This study investigated the effect of hot and cold germinated wheat beverages (HB and CB) in changes of brain waves using EEG. Four distinct approaches and topographical assessments were performed to gain deeper insights into the impact of EEG signals in the human brain. The four approaches showed different impacts of HB and CB intake, as all EEG spectral powers increased after drinking HB and decreased after consumption of CB. Significant increases in delta and theta waves were observed as a result of drinking HB, but significant decreases in alpha and beta waves were observed after drinking CB. The topographic maps illustrate the significant effects of HB more prominently than those of CB, displaying greater changes in delta, theta, and beta. These findings suggest the intake of HB is probably related to relaxation, calmness, mindfulness and concentration, while the intake of CB is related to alertness, attention, and working memory. Ultimately, the neuroscientific approaches provided in this study could advance consumer-based research on beverage consumption.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Neuroimaging Approach: Effects of Hot and Cold Germinated Wheat Beverages on Electroencephalographic (EEG) Activity of the Human Brain

Aung,

Kim,

Kwak

et al. 2023

Foods

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“…A recent investigation on the parallel changes of electroencephalography (EEG) and cognitive functions shows the significant EEG alpha wave deactivation over the fronto-parieto-occipital areas following the consumption of a 50 mg caffeinated drink with an improvement of working memory observed in trail making A, B, and digit span tests [ 53 ]. A low dose of caffeine at 0.5 mg/kg body weight [ 54 ], which is equivalent to our study, should show the effect on cognitive function of soccer players.…”

Section: Discussionmentioning

confidence: 99%

Cardiorespiratory, Metabolic, and Performance Changes from the Effects of Creatine and Caffeine Supplementations in Glucose—Electrolyte-Based Sports Drinks: A Double-Blind, Placebo-Controlled Study

Masodsai

Sahaschot²,

Chaunchaiyakul

2022

Sports

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The purpose of this study is to investigate the additive effects of creatine and caffeine on changes in the cardiorespiratory system, metabolism, and performance of soccer players. Seventeen male soccer players randomly ingested three sports drinks comprising the following: glucose–electrolyte-based (Drink 1, control; D1), glucose–electrolyte-based drink + 5 g creatine (Drink 2; D2), and glucose–electrolyte-based drink + 5 g creatine + 35 mg caffeine (Drink 3; D3) during a 15 min recovery period after the modified Loughborough Intermittent Shuttle Test (LIST) on a standard outdoor soccer field. Then, a 20-m repeated intermittent sprinting activity was performed. The results showed no significant differences in cardiorespiratory and gas exchange variables. The non-significant levels of blood glucose concentrations among drinks with higher blood lactate concentrations were detected in parallel with increased heart rate during intermittent sprinting as a result of exercise intensities. Significantly longer sprinting time was found in D3 than D1 (p < 0.05), with no significant differences between D2 and D3. From this study, we conclude that the additive effect of caffeine–creatine supplements in a glucose–electrolyte drink during the 15 min recovery period enhances repeated 20-m high-intensity running in soccer players with no negative effect on cardiorespiratory functions.

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“…At T0, T1 and T2 athletes also underwent an EEG assessment which took place in a quiet room of athletes’ training facilities. Given the effects of alcohol and caffeinated drinks on brain electrical activity, athletes were instructed not to drink these substances in the last 24 h before the EEG data collection [ 69 ].…”

Section: Methodsmentioning

confidence: 99%

Dreaming while awake: The beneficial effects of yoga Nidra on mental and physical recovery in two elite karate athletes

di Fronso,

Robazza,

Pompa

et al. 2024

Heliyon

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A low- dose of caffeine suppresses EEG alpha power and improves working memory in healthy University males

Cited by 10 publications

References 34 publications

Neuroimaging Approach: Effects of Hot and Cold Germinated Wheat Beverages on Electroencephalographic (EEG) Activity of the Human Brain

Neuroimaging Approach: Effects of Hot and Cold Germinated Wheat Beverages on Electroencephalographic (EEG) Activity of the Human Brain

Cardiorespiratory, Metabolic, and Performance Changes from the Effects of Creatine and Caffeine Supplementations in Glucose—Electrolyte-Based Sports Drinks: A Double-Blind, Placebo-Controlled Study

Dreaming while awake: The beneficial effects of yoga Nidra on mental and physical recovery in two elite karate athletes

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