Differences in the visual control of pantomimed and natural grasping movements

Goodale, Melvyn A.; Jakobson, Lorna S.; Keillor, Jocelyn

doi:10.1016/0028-3932(94)90100-7

Cited by 454 publications

(338 citation statements)

References 21 publications

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“…Observations from healthy individuals using objects versus pantomiming transitive actions indicate that pantomimed actions are less closely tuned to object affordances than are natural actions (Goodale et al, 1994;Milner and Goodale, 1995;Westwood et al, 2000). In the current experiment, photos of the objects were used to cue memory retrieval.…”

Section: Pantomimed Action Versus Actions With Real Objectsmentioning

confidence: 92%

“…However, one fMRI suggested that parietal cortex is critical for pantomimed tool use, as the primary difference between pantomiming and reproducing a meaningless gesture sequence was in parietal rather than temporal regions (Moll et al, 2000). Not in dispute is the fact that, in both healthy subjects and patients, the actions performed during pantomimed and real-object use are not identical (Goodale et al, 1994;Laimgruber et al, 2004;Milner and Goodale, 1995;Westwood et al, 2000). Picking up a real object includes visually-guided adjustment of both hand shape and the size of the aperture between thumb and fingers (prehension).…”

Section: Varieties Of Action: Pantomime Versus Interactions With Realmentioning

confidence: 99%

“…In pantomimed versions of this action, the final grasping adjustment is frequently omitted. The speed and trajectory of reaching and grasping have also been shown to differ for interactions with real objects versus pantomime (Goodale et al, 1994). Overall, actions with physically-present objects rely on immediate and specific visual, tactile, and proprioceptive sensory input, while pantomimed actions must place greater reliance on some object properties retrieved from memory, 1 and largely exclude other object properties (e.g., the muscle force used to pantomime actions with light vs. heavy objects of the same size will not differ, given that no actual weight is moved).…”

Section: Varieties Of Action: Pantomime Versus Interactions With Realmentioning

confidence: 99%

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Memory for pantomimed actions versus actions with real objects

Senkfor

2008

Cortex

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A substantial literature indicates that human actions during object use and pantomimed object use are not identical, and can be differentially affected by brain damage such that apraxic patients can be more impaired in performing actions with objects or at pantomiming such actions. A different literature suggests that memory retrieval can involve reinstating or recapitulating some of the same brain activity that occurred during the original event. The current experiment examines memory for pantomimed actions versus those conducted with real objects to determine if accuracy or brain electrical activity differs during the recollection of episodes involving pantomime versus actual object use. Across two sessions, participants were presented with images of studied objects and judged whether each object was studied by (1) performing an action, (2) watching the experimenter perform an action, (3) imagining an action, or (4) the nonmotoric control task of estimating the object's cost. The study phases preceding this source memory test differed across sessions: in one, participants were presented with real objects and estimated its cost or performed, watched, or imagined typical actions with the objects; in the other they viewed images of each object and estimated its cost or performed, imagined, or watched pantomimes of object use. Although source accuracy was the same across sessions, event-related potentials (ERPs) recorded during memory retrieval differed for memory for actions with real objects versus their pantomime equivalents. Retrieval-phase activity did not differ for cost-encoded objects. The real-object/pantomime difference in brain activity was maximal over left frontal and frontocentral cortex, suggesting differential engagement of motor cortex during memory for real actions versus pantomimed actions.

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Section: Pantomimed Action Versus Actions With Real Objectsmentioning

confidence: 92%

Section: Varieties Of Action: Pantomime Versus Interactions With Realmentioning

confidence: 99%

Section: Varieties Of Action: Pantomime Versus Interactions With Realmentioning

confidence: 99%

See 1 more Smart Citation

Memory for pantomimed actions versus actions with real objects

Senkfor

2008

Cortex

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“…In fact, the trajectories of such movements appear to reference stored perceptual representations of the target location rather than the location of the target in egocentric coordinates. A recent experiment by Goodale et al suggests that the same is true for grasping movements directed at remembered objects (23). Their experiment was run as follows.…”

Section: Grasping Objects That Are No Longer Therementioning

confidence: 99%

“…Some object-based computations, such as those related to size, must be carried out, but even here the computations must reflect the nature of the effector system to be used. Finally, because the position and disposition of a goal object in the action space of an observer is rarely constant, such computations must be carried out on each occasion an action is performed (for a discussion of this issue, see (23)). To use a computer metaphor, the action systems of the dorsal stream do most of their work on-line; only the perception systems of the ventral stream can afford to work off-line.…”

Section: Introductionmentioning

confidence: 99%