Abstract
Oscillatory "temporal sampling" and developmental dyslexia: toward an over-arching theoretical framework.
Highlights
Human cognitive systems such as language represent the sensory world as unitary
Poeppel and others argued that cortical oscillations enabled the representation of different temporal rates of amplitude modulation in the complex speech signal
This theory is about early developmental mechanisms, impaired oscillatory sampling in auditory cortex could, over developmental time, lead to atypical functioning of the leftlateralized “reading network” identified in many fMRI studies of older children (Richlan, 2012, for a recent overview; Clark et al, 2014, for a relevant longitudinal study)
Summary
Human cognitive systems such as language represent the sensory world as unitary. For example, the “speech signal” is perceived as a single auditory stimulus, and different visual features and textures in the visual field are perceived holistically as unitary objects. The TSF proposed that atypical oscillatory sampling at one or more temporal rates in children with dyslexia could cause phonological difficulties in specifying linguistic units such as syllables.
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