Mental scanning of visual images generated from verbal descriptions: towards a model of image accuracy

Neuropsychologia
M DenisD Memmi

Abstract

Recent mental scanning experiments have shown that subjects are not only able to construct mental images from verbal descriptions, but that these images have structural properties similar to those of images derived from perception. In addition, the specific sequencing of a description can affect the internal structure of images of described objects, in particular their metric properties. Discontinuous descriptions require additional exposure to achieve the structural coherence of images constructed from continuous descriptions. Thus, the capacity of images to reflect accurately the objects they refer to is not an all-or-nothing property, but rather results from stepwise elaboration. This study describes a quantitative model designed to account for the gradual process of image elaboration and the progressive increase in image accuracy. The model posits that the location of a landmark mentioned in a description is not represented as a sharp point in the mental image, but is instead associated with a region around this point. Learning the description essentially consists of progressively narrowing each 'region of uncertainty' associated with a landmark to its exact location. Additional experimental data were collected to provide a...Continue Reading

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Citations

Sep 22, 2006·The Quarterly Journal of Experimental Psychology : QJEP·Patrick PéruchMichel Denis
Apr 19, 2000·Journal of Cognitive Neuroscience·E MelletM Denis
Jan 12, 2005·Journal of Motor Behavior·A Guillot, C Collet
Aug 29, 2006·Memory & Cognition·Grégoire BorstMichel Denis
Jun 16, 2006·Perception & Psychophysics·Pascale Michelon, Jeffrey M Zacks
May 19, 1998·Memory & Cognition·W LangstonA M Glenberg
Jan 26, 2011·Memory & Cognition·Dominique T Vuvan, Mark A Schmuckler
Aug 21, 2002·Perceptual and Motor Skills·Tadhg MacIntyreDomhnall J Jennings
Apr 1, 2020·Cognitive Neurodynamics·Sean N Riley, Jim Davies
Jan 3, 2021·Journal of Surgical Education·Heeyoung HanJohn Mellinger

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