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Limited-capacity identity processing of multiple integers

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Publication details

JournalAttention, Perception & Psychophysics
DateAccepted/In press - 15 Apr 2019
DateE-pub ahead of print (current) - 9 May 2019
Number of pages16
Early online date9/05/19
Original languageEnglish


The architecture of the numerical cognition system is currently not well understood, but at a general level, assumptions are made about two core components: a quantity processor and an identity processor. The quantity processor is concerned with accessing and using the stored magnitude denoted by a given digit. The identity processor is concerned with the recovery of the corresponding digit’s identity. Blanc-Goldhammer and Cohen (2014) established that the recovery and use of quantity information operates in an unlimited capacity fashion. Here, we assess whether the identity processor operates in a similar fashion. We present two experiments that are digit identity variations of Blanc-Goldhammer and Cohen’s (2014) magnitude estimation paradigm. The data across both experiments reveal a limited capacity identity processor whose operation reflects cross-talk with the quantity processor. Such findings provide useful evidence that is used to adjudicate between competing models of the human number processing system.

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© The Psychonomic Society, Inc. 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

    Research areas

  • Numerical Cognition, Numerical Architecture, Parallel Processing, Capacity Limits, Numerical Distance Effect

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