AUTHOR=Dos Santos Natanael A., Andrade Suellen M., Calvo Bernardino F.

TITLE=Detection of spatial frequency in brain-damaged patients: influence of hemispheric asymmetries and hemineglect

JOURNAL=Frontiers in Human Neuroscience

VOLUME=7

YEAR=2013

URL=https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2013.00092

DOI=10.3389/fnhum.2013.00092

ISSN=1662-5161

ABSTRACT=<p>Hemispheric specialization for spatial frequency processing was investigated by measuring the contrast sensitivity curves of sine-wave gratings in 30 left or right brain-damaged patients using different spatial frequencies compared with healthy participants. The results showed that left brain-damaged patients were selectively impaired in processing high frequencies, whereas right brain-damaged patients were more impaired in the processing low frequencies, regardless of the presence of visuo-spatial neglect. These visual processing results can be interpreted in terms of spatial frequency discrimination, with both hemispheres participating in this process in different ways.</p>