OBJECTIVE: Exploration of the variable effect of the degree of smoking dependence on
psychomotor performance and working memory capacity. METHODS: This is a randomized …

Nicotine has been shown to affect cortical excitability measured using transcranial magnetic
stimulation in smoking and non-smoking subjects in different ways. In tobacco-deprived …

We previously reported that compared with a non-deprivation state, overnight abstinence
from cigarette smoking was associated with higher brain activity in the left dorsolateral …

Smoking abstinence impairs executive function, which may promote continued smoking
behavior and relapse. The differential influence of nicotine and non‐nicotine (ie sensory …

This study examined the effects of abstinence from smoking, of smoking history, and of
nicotine administration on visual attention (2-Letter Search Task), verbal information …

Rationale and objective Empirical studies indicate that nicotine enhances some aspects of
attention and cognition, suggesting a role in the maintenance of tobacco dependence. The …

Research in smokers has shown that nicotine may have the ability to improve certain
aspects of cognitive performance, including working memory and attention, processes which …

Enhancements in working memory (WM) performance have been previously reported
following acute smoking/nicotine. Neuroimaging and behavioral assessments of nicotine's …

Acute abstinence from cigarette smoking by nicotine-dependent smokers has been linked
with cognitive deficits, but the role of nicotine dependence per se in these effects is not …

BACKGROUND: When nicotine-dependent human subjects abstain from cigarette smoking,
they exhibit deficits in working memory. An understanding of the neural substrates of such …