Abstract
Fischer et al. (2018) (henceforth: FMS Campbell and Metcalfe, 2007). Therefore, FMS Shaki et al., 2018) invalidates the compression account of the OM the logarithm of zero is not defined. This argumentation is flawed because FMS Harvey et al., 2013). In the latter case, the logarithmic function is used as approximation of the relation between external physical magnitude and its internal representation. However, it makes no sense to assume that cortical circuits actually compute the faithful mathematical log transformation of a given sensory information. The intensity of external physical stimuli is internally represented via non-linear spatio-temporal neural codes (e.g., rate code, population code). Basing their criticism on the restriction of the definition of the logarithm to positive real numbers, FM&S conflate the definition with the neural and cognitive representation of magnitudes. Moreover, even assuming that the cognitive
Highlights
Specialty section: This article was submitted to Developmental Psychology, a section of the journal Frontiers in Psychology
FM&S further argue that a stronger bias for zero problems compared to non-zero problems (Pinhas and Fischer, 2008; Shaki et al, 2018) invalidates the compression account of the operational momentum effect (OM) “because the logarithm of zero is not defined.”
Response: Commentary: OM in Children system would be bound to this particular mathematical formulation of the relation between physical stimulus magnitude and sensation, another framework has been put forward that does define a mathematical solution of zero magnitudes
Summary
Specialty section: This article was submitted to Developmental Psychology, a section of the journal Frontiers in Psychology. A Commentary on Commentary: The Developmental Trajectory of the Operational Momentum Effect by Fischer, M.
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