Failure of colour and contrast polarity identification at threshold for detection of motion and global form

Kiley J. Seymour*, J. Scott McDonald, Colin W G Clifford

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

We used identification at threshold to systematically measure binding costs in two visual modalities. We presented a conjunction of two features as a signal stimulus and concurrently measured detection and identification performance as a function of three threshold variables: duration, contrast and coherence. Discrepancies between detection and identification sensitivity functions demonstrated a consistent processing cost to visual feature binding. Our findings suggest that feature binding is indeed a genuine problem for the brain to solve. This simple paradigm can transfer across arbitrary feature combinations and is therefore suitable to use in experiments addressing mechanisms of sensory integration.

Original languageEnglish
Pages (from-to)1592-1598
Number of pages7
JournalVision Research
Volume49
Issue number12
DOIs
Publication statusPublished - Jun 2009
Externally publishedYes

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