2 votes

Vision senses number directly

John Ross¹ and David C. Burr²

Correspondence: (Login to view email address)

1. School of Psychology, The University of Western Australia
2. Istituto di Neurofisiologia, Area di Pisa

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Date:

Received 16 January 2009 08:23 UTC; Posted 16 January 2009

Subjects:

Neuroscience

Tags:

• Vision
• numerosity
• Judgment
• perception

Abstract:

We have recently suggested that numerosity is a primary sensory attribute, showing that it is strongly susceptible to adaptation. Here we use the Method of Single Stimuli (MSS) to show that observers can extract a running average of the numerosity of a succession of stimuli and hold it in mind for use as a standard of comparison for subsequent stimuli. Accuracy and precision of judgments are high and not reduced by potentially misleading variables like texture density or display area.

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This document is licensed to the public under the Creative Commons Attribution 3.0 License

How to cite this document:

Ross, John and Burr, David. Vision senses number directly. Available from Nature Precedings <http://hdl.handle.net/10101/npre.2009.2792.1> (2009)

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