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Can smoking increase attention in rapid information processing during noise? Electrocortical, physiological and
M Hasenfratz1, C Michel, R Nil
1Comparative Physiology and Behavioral Biology Laboratory, Zürich, Switzerland.
Psychopharmacology
|January 1, 1989
Summary
Smoking enhances rapid information processing (RIP) performance, while noise does not significantly impact cognitive function. Although noise caused physiological stress, smoking improved mental task results.
Area of Science:
- Cognitive Neuroscience
- Psychophysiology
Background:
- Subject-paced visual rapid information processing (RIP) performance is crucial for cognitive function.
- The impact of smoking and auditory noise on cognitive performance and physiological responses requires further investigation.
Purpose of the Study:
- To investigate the effects of smoking on RIP performance under conditions with and without disturbing noise.
- To examine the influence of smoking and noise on electroencephalography (EEG), event-related potentials (ERPs), and peripheral physiological measures.
Main Methods:
- Two groups of female smokers underwent RIP tasks with periods of smoking or relaxation.
- Disturbing noise was introduced during specific RIP trials.
- EEG, ERPs, heart rate, skin conductance, and hormone levels (cortisol, prolactin, HGH) were measured.
Main Results:
- Smoking significantly increased RIP performance.
- Disturbing noise did not measurably affect cognitive performance but induced physiological stress responses (heart rate acceleration, vasoconstriction).
- Smoking reduced CNV-related negativity and increased the late positive wave (LP), with noise attenuating the LP increase.
Conclusions:
- Smoking appears to enhance cognitive performance in rapid information processing tasks.
- While noise induces physiological stress, it does not impair cognitive performance on this specific task.
- Smoking's positive effects on cognitive performance may be modulated by concurrent stressors like noise.