Comparative analysis of actual and mental movement times in two graphic tasks

Decety, Jean; François, Michel

doi:10.1016/0278-2626(89)90007-9

Cited by 294 publications

(149 citation statements)

References 26 publications

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“…This comparison relies on the assumption that similar timing of executed and imagined actions reflects similarities in the progress of unfolding actions. Similarities in timing have been reported for a variety of well-known everyday-life actions, such as writing a sentence and drawing a cube (Decety & Michel, 1989) or walking (Courtine, Papaxanthis, Gentili, & Pozzo, 2004;Decety, Jeannerod, & Prablanc, 1989).…”

Section: Abstract Motor Imagery Typing Action Familiarity Skillsupporting

confidence: 61%

Motor imagery in typing: effects of typing style and action familiarity

Rieger

2011

Psychon Bull Rev

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The influences of typing style and action familiarity on executed and imagined typing were investigated. A group of touch typists and a group of hunt-and-peck typists were asked to imagine and execute typing texts of different lengths in two different styles: with ten fingers (familiar for touch typists, unfamiliar for hunt-and-peck typists) and with two fingers (unfamiliar for touch typists, familiar for huntand-peck typists). The imagination (but not the execution) of familiar and unfamiliar typing was correlated in both groups, indicating that participants used skill knowledge from the familiar action to imagine the unfamiliar action. Only when touch typists imagined familiar typing accurate motor imagery was observed (similar durations of and positive correlations between imagination and execution). When touch typists imagined unfamiliar typing, the average imagination durations resembled the execution durations, but correlations indicated individual differences in the processes of imagination and execution. Hunt-and-peck typists showed shorter imagination than execution durations with both familiar and unfamiliar typing, indicating that in both styles they did not imagine all details of typing. Also, they did not imagine some details specifically related to unfamiliar typing (reflected in particularly high percentages of absolute error). However, correlations indicated that individual difficulties in executing the unfamiliar action were reflected in the imagination durations. In conclusion, skill knowledge from familiar actions is used to imagine unfamiliar actions. Familiarity with actions promotes accurate motor imagery, but only if stable internal action representations have been acquired, and not if action control relies on online, step-by-step control. However, stable internal action representations of familiar actions may be detrimental for imagery of unfamiliar actions.

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Section: Abstract Motor Imagery Typing Action Familiarity Skillsupporting

confidence: 61%

Motor imagery in typing: effects of typing style and action familiarity

Rieger

2011

Psychon Bull Rev

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“…As already mentioned above, the time it takes to image a certain action is closely correlated with the execution time of the action (Decety and Michel, 1989;Parsons, 1994;Sirigu et al, 1996;Stevens, 2005). Furthermore, vegetative responses like cardiac and respiratory rhythms covary with the degree of imagined effort (Decety et al, 1991).…”

Section: Motor Imagery In Healthy Subjectsmentioning

confidence: 88%

Motor imagery: A window into the mechanisms and alterations of the motor system

Lange

Roelofs

Toni

2008

Cortex

168

107

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Explicit motor imagery Conversion paralysis fMRI Mental rotation a b s t r a c tMotor imagery is a widely used paradigm for the study of cognitive aspects of action control, both in the healthy and the pathological brain. In this paper we review how motor imagery research has advanced our knowledge of behavioral and neural aspects of action control, both in healthy subjects and clinical populations. Furthermore, we will illustrate how motor imagery can provide new insights in a poorly understood psychopathological condition: conversion paralysis (CP). We measured behavioral and cerebral responses with functional magnetic resonance imaging (fMRI) in seven CP patients with a lateralized paresis of the arm as they imagined moving the affected or the unaffected hand. Imagined actions were either implicitly induced by the task requirements, or explicitly instructed through verbal instructions. We previously showed that implicitly induced motor imagery of the affected limb leads to larger ventromedial prefrontal responses compared to motor imagery of the unaffected limb. We interpreted this effect in terms of greater self-monitoring of actions during motor imagery of the affected limb. Here, we report new data in support of this interpretation: inducing self-monitoring of actions of both the affected and the unaffected limb (by means of explicitly cued motor imagery) abolishes the activation difference between the affected and the unaffected hand in the ventromedial prefrontal cortex. Our results show that although implicit and explicit motor imagery both entail motor simulations, they differ in terms of the amount of action monitoring they induce. The IntroductionMotor imagery is a familiar aspect of most people's everyday experience. It is important for learning complex motor skills like sports (Murphy, 1994), as well as re-learning motor skills in neurological populations (Dijkerman et al., 2004;. The potential of motor imagery in clinical applications is broad, ranging from Brain-Computer interfacing (Pfurtscheller and Neuper, 2006)

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“…In a first experiment, we [3] compared the temporal organization of graphic movements executed either actually or mentally in normal subjects. The subjects had to perform two graphic tasks, drawing a cube or writing a sentence, with either the right (dominant) or the left hand.…”

Section: Mental Chronometrymentioning

confidence: 99%

Do imagined and executed actions share the same neural substrate?

Decety

1996

Cognitive Brain Research

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529

291

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This paper addresses the issue of the functional correlates of motor imagery, using mental chronometry, monitoring the autonomic responses and measuring cerebral blood flow in humans. The timing of mentally simulated actions closely mimic actual movement times. Autonomic responses during motor imagery parallel the autonomic responses to actual exercise. Cerebral blood flow increases are observed in the motor cortices involved in the programming of actual movement (i.e. premotor cortex, anterior cingulate, inferior parietal lobule and cerebellum). These three sources of data provide converging support for the hypothesis that imagined and executed actions share, to some extent, the same central structures.

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Comparative analysis of actual and mental movement times in two graphic tasks

Cited by 294 publications

References 26 publications

Motor imagery in typing: effects of typing style and action familiarity

Motor imagery in typing: effects of typing style and action familiarity

Motor imagery: A window into the mechanisms and alterations of the motor system

Do imagined and executed actions share the same neural substrate?

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