Lack of interaction between concurrent caffeine and mobile phone exposure on visual target detection: An ERP study

Trunk, Attila; Stefanics, Gábor; Zentai, Norbert; Bacskay, Ivett; Felinger, Attila; Thuróczy, György; Hernádi, István

doi:10.1016/j.pbb.2014.07.011

Cited by 15 publications

(13 citation statements)

References 55 publications

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“…Moreover, findings regarding the possible cognitive effects of MP use are rather inconsistent; for example, some suggest adverse 11,16,17 or facilitating effects, [18][19][20][21] whereas others found no effects. 12,14,[22][23][24][25][26] Previous reviews do not support the short-term impact of high frequency electromagnetic fields (EMF) emitted by several types of MPs on human cognitive performance (for an overview, see the following reviews: 7,8,22,27,28 ). It is argued that the heterogeneity of the results may be due to differences in methodology, statistical power and interpretation criteria.…”

Section: Introductionmentioning

confidence: 99%

Short-term radiofrequency exposure from new generation mobile phones reduces EEG alpha power with no effects on cognitive performance

Vecsei

Knakker

Juhász

et al. 2018

Preprint

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Although mobile phone (MP) use has been steadily increasing in the last decades and similar positive trends are expected for the near future, systematic investigations on neurophysiological and cognitive effects caused by recently developed technological standards for MPs are scarcely available. Here, we investigated the effects of radiofrequency (RF) fields emitted by new-generation mobile technologies, specifically, Universal Mobile Telecommunications System (UMTS) and LongTerm Evolution (LTE), on intrinsic scalp EEG activity in the alpha band (8-12 Hz) and cognitive performance in the Stroop test. The study involved 60 healthy, young-adult university students (34 for UMTS and 26 for LTE) with double-blind administration of Real and Sham exposure in separate sessions. EEG was recorded before, during and after RF exposure, and Stroop performance was assessed before and after EEG recording. Both RF exposure types caused a notable decrease in the alpha power over the whole scalp that persisted even after the cessation of the exposure, whereas no effects were found on any aspects of performance in the Stroop test. The results imply that the brain networks underlying global alpha oscillations might require minor reconfiguration to adapt to the local biophysical changes caused by focal RF exposure mimicking MP use.

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Section: Introductionmentioning

confidence: 99%

Short-term radiofrequency exposure from new generation mobile phones reduces EEG alpha power with no effects on cognitive performance

Vecsei

Knakker

Juhász

et al. 2018

Preprint

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“…A few studies have begun to examine EMF‐related effects on ERD [Vecchio et al, ,] and ERPs [Trunk et al, , ]. In line with an increase in fronto‐temporal blood flow reported by Volkow et al [] in their PET study, a positive waveform over frontal and central electrode sites was seen time‐locked to peaks in MP radiation (ERP 240–500 ms) [Roggeveen et al, ].…”

Section: Resultsmentioning

confidence: 88%

“…This would suggest increased cortical activity induced by the presence of an active MP, which is also in line with a reduction [Ghosn et al, ], rather than increase [Roggeveen et al, ] in alpha power, and an increase in fast frequency bands (beta, gamma). In comparison, no measurable effects of EMF exposure were observed on ERPs elicited by either the auditory oddball task [Trunk et al, ] or visual oddball paradigm [Trunk et al, ].…”

Section: Resultsmentioning

confidence: 99%

Acute effects of radiofrequency electromagnetic field emitted by mobile phone on brain function

Zhang

Sumich

Wang

2017

Bioelectromagnetics

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Due to its attributes, characteristics, and technological resources, the mobile phone (MP) has become one of the most commonly used communication devices. Historically, ample evidence has ruled out the substantial short-term impact of radiofrequency electromagnetic field (RF-EMF) emitted by MP on human cognitive performance. However, more recent evidence suggests potential harmful effects associated with MP EMF exposure. The aim of this review is to readdress the question of whether the effect of MP EMF exposure on brain function should be reopened. We strengthen our argument focusing on recent neuroimaging and electroencephalography studies, in order to present a more specific analysis of effects of MP EMF exposure on neurocognitive function. Several studies indicate an increase in cortical excitability and/or efficiency with EMF exposure, which appears to be more prominent in fronto-temporal regions and has been associated with faster reaction time. Cortical excitability might also underpin disruption to sleep. However, several inconsistent findings exist, and conclusions regarding adverse effects of EMF exposure are currently limited. It also should be noted that the crucial scientific question of the effect of longer-term MP EMF exposure on brain function remains unanswered and essentially unaddressed. Bioelectromagnetics. 38:329-338, 2017. © 2017 Wiley Periodicals, Inc.

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“…Evidences indicate that the combination of caffeine and other EMFs, such as light, may alter arousal levels and cognitive functions 3 4 . However, to date, most available research on human cognition have only investigated the effects of different types of MP exposures or caffeine alone without considering their possible additive effects 1 2 5 .…”

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confidence: 99%

“…Here we analyzed the recorded data in conjunction with a previous study 5 in a different aspect. In a previous paper we analyzed the potential effects of caffeine and EMF on stimulus-evoked brain potentials (P300).…”

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confidence: 99%

Effects of concurrent caffeine and mobile phone exposure on local target probability processing in the human brain

Trunk

Stefanics

Zentai

et al. 2015

Sci Rep

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Millions of people use mobile phones (MP) while drinking coffee or other caffeine containing beverages. Little is known about the potential combined effects of MP irradiation and caffeine on cognitive functions. Here we investigated whether caffeine intake and concurrent exposure to Universal Mobile Telecommunications System (UMTS) MP-like irradiation may interactively influence neuro-cognitive function in an active visual oddball paradigm. In a full factorial experimental design, 25 participants performed a simple visual target detection task while reaction time (RT) and electroencephalogram (EEG) was recorded. Target trials were divided into Low and High probability sets based on target-to-target distance. We analyzed single trial RT and alpha-band power (amplitude) in the pre-target interval. We found that RT was shorter in High vs. Low local probability trials, and caffeine further shortened RT in High probability trials relative to the baseline condition suggesting that caffeine improves the efficiency of implicit short-term memory. Caffeine also decreased pre-target alpha amplitude resulting in higher arousal level. Furthermore, pre-target gamma power positively correlated with RT, which may have facilitated target detection. However, in the present pharmacologically validated study UMTS exposure either alone or in combination with caffeine did not alter RT or pre-stimulus oscillatory brain activity.

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Lack of interaction between concurrent caffeine and mobile phone exposure on visual target detection: An ERP study

Cited by 15 publications

References 55 publications

Short-term radiofrequency exposure from new generation mobile phones reduces EEG alpha power with no effects on cognitive performance

Short-term radiofrequency exposure from new generation mobile phones reduces EEG alpha power with no effects on cognitive performance

Acute effects of radiofrequency electromagnetic field emitted by mobile phone on brain function

Effects of concurrent caffeine and mobile phone exposure on local target probability processing in the human brain

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