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An effect of triazolam on visual attention and information processing
D N Johnson1, H J Weingartner, P Andreason
1Section of Cognitive Neurosciences, National Institute on Alcoholism and Alcohol Abuse, Bethesda, Maryland 20892, USA.
Psychopharmacology
|September 1, 1995
Summary
This study found that triazolam, a benzodiazepine, impairs attentional disengagement and switching, but not attention allocation, in healthy volunteers. These findings suggest specific cognitive effects of benzodiazepines beyond memory.
Area of Science:
- Cognitive Neuroscience
- Psychopharmacology
Background:
- Benzodiazepines are known to affect memory.
- The impact of benzodiazepines on attention and visual processing remains less understood.
- Investigating these effects is crucial for understanding drug-induced cognitive alterations.
Purpose of the Study:
- To determine if benzodiazepines selectively impair attention and visual information processing.
- To examine the effects of triazolam on controlled versus automatic attention allocation.
- To assess how cue-validity influences attentional processing under triazolam.
Main Methods:
- A cued visual-search paradigm was used with healthy volunteers.
- A single dose of triazolam was administered and compared to a placebo.
- The study analyzed response times in relation to central/peripheral cues and cue-validity.
Main Results:
- Triazolam significantly increased response times compared to placebo.
- A significant interaction was observed between drug condition and cue-validity.
- No significant effect of triazolam was found on cue-type, indicating no impact on attention allocation.
Conclusions:
- Triazolam does not appear to affect the allocation of attention.
- Evidence suggests triazolam impacts attentional disengagement and/or attention switching mechanisms.
- These findings highlight specific cognitive deficits induced by benzodiazepines.