Format

Send to

Choose Destination
Nat Neurosci. 2014 May;17(5):738-43. doi: 10.1038/nn.3689. Epub 2014 Mar 30.

Serial dependence in visual perception.

Author information

1
1] Department of Psychology, University of California, Berkeley, California, USA. [2] Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA. [3] McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
2
1] Department of Psychology, University of California, Berkeley, California, USA. [2] Helen Wills Neuroscience Institute, University of California, Berkeley, California, USA. [3] Vision Science Group, University of California, Berkeley, California, USA.

Abstract

Visual input often arrives in a noisy and discontinuous stream, owing to head and eye movements, occlusion, lighting changes, and many other factors. Yet the physical world is generally stable; objects and physical characteristics rarely change spontaneously. How then does the human visual system capitalize on continuity in the physical environment over time? We found that visual perception in humans is serially dependent, using both prior and present input to inform perception at the present moment. Using an orientation judgment task, we found that, even when visual input changed randomly over time, perceived orientation was strongly and systematically biased toward recently seen stimuli. Furthermore, the strength of this bias was modulated by attention and tuned to the spatial and temporal proximity of successive stimuli. These results reveal a serial dependence in perception characterized by a spatiotemporally tuned, orientation-selective operator-which we call a continuity field-that may promote visual stability over time.

PMID:
24686785
PMCID:
PMC4012025
DOI:
10.1038/nn.3689
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Nature Publishing Group Icon for PubMed Central
Loading ...
Support Center