Internal and external influences on the rate of sensory evidence accumulation in the human brain.

@article{Kelly2013InternalAE,
  title={Internal and external influences on the rate of sensory evidence accumulation in the human brain.},
  author={Simon P. Kelly and Redmond G. O'Connell},
  journal={The Journal of neuroscience : the official journal of the Society for Neuroscience},
  year={2013},
  volume={33 50},
  pages={19434-41}
}
We frequently need to make timely decisions based on sensory evidence that is weak, ambiguous, or noisy resulting from conditions in the external environment (e.g., a cluttered visual scene) or within the brain itself (e.g., inattention, neural noise). Here we examine how externally and internally driven variations in the quality of sensory evidence affect the build-to-threshold dynamics of a supramodal "decision variable" signal and, hence, the timing and accuracy of decision reports in humans… CONTINUE READING
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