RT Journal Article
SR Electronic
T1 Temporal Resolution for the Perception of Features and Conjunctions
JF The Journal of Neuroscience
JO J. Neurosci.
FD Society for Neuroscience
SP 725
OP 730
DO 10.1523/JNEUROSCI.3860-06.2007
VO 27
IS 4
A1 Clara Bodelón
A1 Mazyar Fallah
A1 John H. Reynolds
YR 2007
UL http://www.jneurosci.org/content/27/4/725.abstract
AB The visual system decomposes stimuli into their constituent features, represented by neurons with different feature selectivities. How the signals carried by these feature-selective neurons are integrated into coherent object representations is unknown. To constrain the set of possible integrative mechanisms, we quantified the temporal resolution of perception for color, orientation, and conjunctions of these two features. We find that temporal resolution is measurably higher for each feature than for their conjunction, indicating that time is required to integrate features into a perceptual whole. This finding places temporal limits on the mechanisms that could mediate this form of perceptual integration.