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.