Research
Global motion deficits following early visual deprivation reflect impaired attention allocation rather than poor information integration
Current Biology · By Tanya Orlov, Itay Ben-Zion & Ehud Zohary ·
The Brief
- A study by Orlov et al. examined people whose congenital cataracts were treated late, after prolonged visual deprivation.
- Global motion perception was not affected by the early visual deprivation.
- The deprivation did hamper the selection and enhancement of the dominant local-motion signal, which the authors attribute to impaired attention allocation rather than poor information integration.
Why it matters
The findings suggest that deficits in motion perception after early visual deprivation may stem from attention allocation rather than from the brain's ability to integrate visual information, which points research on visual recovery toward attention.
Who’s affected
- vision scientists and neuroscientists
- clinicians and researchers working on congenital cataract treatment
- #vision
- #congenital cataract
- #motion perception
- #visual attention
- #neuroscience
Orlov et al. show that prolonged visual deprivation due to late treatment of congenital cataract does not affect global motion perception. Still, it hampers selection and enhancement of the dominant local-motion signal. Population modeling and convergent behavioral evidence…