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Representation of Number in Animals and Humans: A Neural Model
This article addresses the representation of numerical information conveyed by nonsymbolic and symbolic stimuli and presents a concrete proposal on the linkage between higher order numerical cognition and more primitive numerical abilities and generates specific predictions on the neural substrate of number processing.
Post-error slowing: An orienting account
Hebbian learning of cognitive control: dealing with specific and nonspecific adaptation.
The authors of the current article show how problems of how the cognitive system knows where to intervene when conflict is detected can be solved when cognitive control is implemented as a conflict-modulated Hebbian learning rule.
Adaptation by binding: a learning account of cognitive control
Numbers and space: a computational model of the SNARC effect.
- W. Gevers, T. Verguts, B. Reynvoet, Bernie Caessens, W. Fias
- PsychologyJournal of experimental psychology. Human…
The authors modeled the SNARC effect as the result of parallel activation of preexisting links between magnitude and spatial representation and short-term links created on the basis of task instructions.
A model of exact small-number representation
A neural network model is proposed that uses place coding, linear scaling, and constant variability on the mental number line and shows that the size effect appears in comparison, but not in naming or parity judgment, in line with empirical data.
Interacting neighbors: A connectionist model of retrieval in single-digit multiplication
It is shown that all existing theories have difficulties in accounting for one or more of the most important findings in mental arithmetic, and a new theory is presented that avoids these difficulties.
Dissecting the symbolic distance effect: Comparison and priming effects in numerical and nonnumerical orders
In the present study, numbers and letters are used to show that the comparison distance effect can be dissociated from a more direct behavioral signature of representational overlap, the priming distance effect.
Verbal-spatial and visuospatial coding of number-space interactions.
- W. Gevers, Seppe Santens, T. Verguts
- Psychology, BiologyJournal of experimental psychology. General
- 1 February 2010
The SNARC effect is demonstrated and verbal-spatial coding influences processes and representations that have been believed to be purely visuospatial, and relations to other number-space interactions and implications for other tasks are discussed.