Differential effects of moderate alcohol consumption on motion and contrast processing.
- Authors
- Weschke, Sarah; Niedeggen, Michael
- Year
- 2012
- Journal
- Psychophysiology
- PMID
- 22332779
- DOI
- 10.1111/j.1469-8986.2012.01356.x
Although a moderate blood alcohol concentration already affects attention, an effect on early visual processing is still questionable. Using psychophysical measures and visually evoked potentials (VEP), we examined the effects of alcohol on the processing of contrast and motion features. In our tasks, two lateralized stimuli were briefly presented, and participants had to identify either the stimulus of higher contrast or motion coherence. In the contrast task, alcohol was found to decrease the discrimination ability and induced a global attenuation of VEP amplitudes. In the motion task, discrimination was not impaired. VEP amplitudes were reduced contralateral to the target position, indicating an effect of alcohol on the deployment of visuospatial attention. In sum, our data suggest that specialized areas for motion and contrast processing within the visual cortex are differently sensitive to moderate alcohol exposure.
No figures extracted from this document.
No chunks — full text not yet ingested.
No entities extracted from this document yet.
No uploaded files.
No citations found.
In this knowledge base
| Title | Year | PMID |
|---|---|---|
| Understanding alcohol use disorders with neuroelectrophysiology. | 2014 | 25307587 |
External
| Title | Authors | Journal | Year | Link |
|---|---|---|---|---|
| Decreased glucose-6-phosphate dehydrogenase activity along with oxidative stress affects visual contrast sensitivity in alcoholics. | Pramanik S et al. | — | 2018 | → |
| Moderate acute alcohol intoxication increases visual motion repulsion. | Wang Z et al. | — | 2018 | → |
| Presence and User Experience in a Virtual Environment under the Influence of Ethanol: An Explorative Study. | Lorenz M et al. | — | 2018 | → |
| Acute alcohol exposure impairs neural representation of visual motion speed in the visual cortex area posteromedial lateral suprasylvian cortex of cats. | Wang Z et al. | — | 2015 | → |
| The embodied brain. | Fabiani M | — | 2015 | → |
| Spatio-temporal processing of words and nonwords: hemispheric laterality and acute alcohol intoxication. | Marinkovic K et al. | — | 2014 | → |
| Understanding alcohol use disorders with neuroelectrophysiology. | Rangaswamy M et al. | — | 2014 | → |