Key result
Tobacco smoking is linked to resting-state EEG alpha band alterations suggesting attention and cognitive changes.
Why the study?
While detrimental impacts of smoking on organs are well-established, its specific effects on nervous system function, particularly resting-state electroencephalography, remain an area of ongoing investigation.
Does tobacco smoking alter resting-state EEG findings compared to non-smokers?
Systematic Review (n=684)
Does tobacco smoking alter resting-state EEG findings compared to non-smokers?
Tobacco smoking is associated with alterations in resting-state EEG, particularly in the alpha band, suggesting impacts on attention and cognitive functions.
May flag smoking-related attention changes on EEG; extends observational data but leaves causality and practice implications open.
Despite significant strides in reducing smoking prevalence globally, tobacco use remains a leading contributor to ill health and premature death worldwide. While the detrimental impacts of smoking on various organs are well-established, its specific effects on nervous system function remain an area of ongoing investigation. This systematic review delves into the neurobiological effects of smoking, particularly through the lens of resting-state electroencephalography (EEG). A systematic search was conducted in May 2024 in PubMed, Embase, and Web of Science databases, and all available evidence comparing resting-state EEG findings between smokers and non-smokers was assessed. The 13 included studies investigated a total of 684 participants, with a median female percentage of of 25 % (range: 0-100), and the age of participants ranged from 18 to approximately 73 years. Alterations in the alpha band were the most prevalent findings observed in the EEG of smokers compared to non-smokers, observed in 8 studies, suggesting changes in the attention and cognitive functions of smokers. However, findings regarding the specific direction and location of changes were not consistent. Additionally, changes in delta, theta, and beta bands were identified on a less frequent basis. There was evidence suggesting that the observed neural oscillation changes are influenced by various factors, including the number of cigarettes used, pack years of smoking, age of smoking initiation, and smoking cessation status. These findings underscore the multifaceted nature of the impact of smoking on brain activity, especially on cognition and the attentional system.
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Taebi et al. (2025) conducted a systematic review in Tobacco smoking (n=684). Tobacco smoking vs. Non-smokers was evaluated on Resting-state EEG findings. Tobacco smoking was most frequently associated with alterations in the alpha band on resting-state EEG (observed in 8 of 13 studies), suggesting changes in attention and cognitive functions.
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