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Neural limits of temporal feature binding in human visual cortex.
Nature Communications · · Journal Article · Open access
Schönemann, Merkel + more
Abstract ↗AI summary
The abstract is read at the publisher; the summary is JClub's.
CO feature binding across spatially separated color and orientation in human V1/V2 requires rapid recurrent modulation with a ~120 ms timescale, independent of alternation frequency.
- Why it matters: Spatial separation slows CO tracking by an order of magnitude, revealing a temporal limit of feature binding that remains poorly explained mechanistically.
- What they did: Using high-temporal-resolution cortical source localization of magnetic responses to alternating color–orientation (CO) pairs at different frequencies, the study tested how binding depends on recurrent timing and attention.
- The result: Binding performance drops to chance at alternation rates too high for the recurrent process within a single alternation, and CO binding is mediated by color-based attention that gradually biases re-occurring CO combinations.
The findingWhy it mattersWhat they didThe result
- Open access