Abnormalities of visual evoked potentials by checkerboards in children with specific reading disability

A theoretical and experimental case for a visual deficit in specific reading disability

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A theoretical and experimental case for a visual deficit in specific reading disability

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Electrophysiological Evidence against the Magnocellular Deficit Theory in Developmental Dyslexia

“…In fact, few VEP studies have used optimal stimuli to dissociate the M and P pathway responses. For example, most studies used checkerboard patterns to activate responses from a wide range of spatial frequency mechanisms that are not restricted to the magnocellular pathway [39,[59][60][61]. Moreover, the majority of studies based their conclusions on inductive reasoning, either because they used stimulus conditions that tested only one pathway (either M or P), or they used paradigms constructed from a theoretical rationale based on animal studies that have not been validated in humans.…”

A theoretical and experimental case for a visual deficit in specific reading disability

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Electrophysiological Evidence against the Magnocellular Deficit Theory in Developmental Dyslexia

“…In fact, few VEP studies have used optimal stimuli to dissociate the M and P pathway responses. For example, most studies used checkerboard patterns to activate responses from a wide range of spatial frequency mechanisms that are not restricted to the magnocellular pathway [39,[59][60][61]. Moreover, the majority of studies based their conclusions on inductive reasoning, either because they used stimulus conditions that tested only one pathway (either M or P), or they used paradigms constructed from a theoretical rationale based on animal studies that have not been validated in humans.…”

A theoretical and experimental case for a visual deficit in specific reading disability

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“……”

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Electrophysiological Evidence against the Magnocellular Deficit Theory in Developmental Dyslexia

“…In fact, few VEP studies have used optimal stimuli to dissociate the M and P pathway responses. For example, most studies used checkerboard patterns to activate responses from a wide range of spatial frequency mechanisms that are not restricted to the magnocellular pathway [39,[59][60][61]. Moreover, the majority of studies based their conclusions on inductive reasoning, either because they used stimulus conditions that tested only one pathway (either M or P), or they used paradigms constructed from a theoretical rationale based on animal studies that have not been validated in humans.…”