Perceiving what you intend to do from what you do: evidence for embodiment in social interactions

Quesque, François; Yann, C.

doi:10.3402/snp.v5.28602

Cited by 23 publications

(16 citation statements)

References 105 publications

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“…More recently, the social goal of an object-directed motor action was also found to influence movement kinematics (for reviews see [26][27][28][29][30]. A number of studies have indeed revealed that an object-oriented motor action performed with a social goal, i.e.…”

Section: The Combined Effects Of Motor and Social Goals On The Kinemamentioning

confidence: 99%

The combined effects of motor and social goals on the kinematics of object-directed motor action

Gigliotti

Sampaio

Bartolo

et al. 2020

Sci Rep

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Voluntary actions towards manipulable objects are usually performed with a particular motor goal (i.e., a task-specific object-target-effector interaction) and in a particular social context (i.e., who would benefit from these actions), but the mutual influence of these two constraints has not yet been properly studied. For this purpose, we asked participants to grasp an object and place it on either a small or large target in relation to Fitts’ law (motor goal). This first action prepared them for a second grasp-to-place action which was performed under temporal constraints, either by the participants themselves or by a confederate (social goal). Kinematic analysis of the first preparatory grasp-to-place action showed that, while deceleration time was impacted by the motor goal, peak velocity was influenced by the social goal. Movement duration and trajectory height were modulated by both goals, the effect of the social goal being attenuated by the effect of the motor goal. Overall, these results suggest that both motor and social constraints influence the characteristics of object-oriented actions, with effects that combine in a hierarchical way.

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Section: The Combined Effects Of Motor and Social Goals On The Kinemamentioning

confidence: 99%

The combined effects of motor and social goals on the kinematics of object-directed motor action

Gigliotti

Sampaio

Bartolo

et al. 2020

Sci Rep

Self Cite

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“…Similar results have been reported by [ 23 ] who found a variation in the kinematics of the actions when placing a piece of food into the mouth of another person, compared to acts ending into a mouth-like aperture on a dummy head. Quesque et al [ 24 ] relied on a similar paradigm and demonstrated the effects of peripersonal space on hand movement kinematics performed with social intentions (but see also [ 26 ] for a similar effect in the presence of a familiar but not of an unfamiliar attendee): a hand movement took a longer time to be initiated when intended to place an object within the peripersonal-action (at reachability-distance), but not into a farther, space of a human attendee. In a similar vein, [ 31 ] found shorter hand movement duration in a competitive rather than a cooperative social context.…”

Section: Introductionmentioning

confidence: 99%

Faster but Less Careful Prehension in Presence of High, Rather than Low, Social Status Attendees

et al. 2016

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Ample evidence attests that social intention, elicited through gestures explicitly signaling a request of communicative intention, affects the patterning of hand movement kinematics. The current study goes beyond the effect of social intention and addresses whether the same action of reaching to grasp an object for placing it in an end target position within or without a monitoring attendee’s peripersonal space, can be moulded by pure social factors in general, and by social facilitation in particular. A motion tracking system (Optotrak Certus) was used to record motor acts. We carefully avoided the usage of communicative intention by keeping constant both the visual information and the positional uncertainty of the end target position, while we systematically varied the social status of the attendee (a high, or a low social status) in separated blocks. Only thirty acts performed in the presence of a different social status attendee, revealed a significant change of kinematic parameterization of hand movement, independently of the attendee's distance. The amplitude of peak velocity reached by the hand during the reach-to-grasp and the lift-to-place phase of the movement was larger in the high rather than in the low social status condition. By contrast, the deceleration time of the reach-to-grasp phase and the maximum grasp aperture was smaller in the high rather than in the low social status condition. These results indicated that the hand movement was faster but less carefully shaped in presence of a high, but not of a low social status attendee. This kinematic patterning suggests that being monitored by a high rather than a low social status attendee might lead participants to experience evaluation apprehension that informs the control of motor execution. Motor execution would rely more on feedforward motor control in the presence of a high social status human attendee, vs. feedback motor control, in the presence of a low social status attendee.

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“…Indeed, while several studies proved how the kinematics of reach-to-grasp movements is affected by specific variations of factors like object position, type, size or familiarity [8][9][10][11][12][13] , kinematics modulations of reaching and grasping were found even when the same object was grasped with different intents, as for example to place or to throw it in a container 14,15 . Moreover, further modulations emerged associated to social intentions, as in the case of a movement addressed toward another individual in opposition to ourselves [16][17][18][19][20] , or when it has cooperative or competitive goals [21][22][23] . In turn, the kinematics of the observed action can modulate the reactivity of the observer's motor system [24][25][26][27][28][29] .…”

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confidence: 99%

Observer-Agent Kinematic Similarity Facilitates Action Intention Decoding

Marco

Scalona

Bazzini

et al. 2020

Sci Rep

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it is well known that the kinematics of an action is modulated by the underlying motor intention. in turn, kinematics serves as a cue also during action observation, providing hints about the intention of the observed action. However, an open question is whether decoding others' intentions on the basis of their kinematics depends solely on how much the kinematics varies across different actions, or rather it is also influenced by its similarity with the observer motor repertoire. The execution of reach-to-grasp and place actions, differing for target size and context, was recorded in terms of upper-limb kinematics in 21 volunteers and in an actor. Volunteers had later to observe the sole reach-to-grasp phase of the actor's actions, and predict the underlying intention. The potential benefit of the kinematic actorparticipant similarity for recognition accuracy was evaluated. In execution, both target size and context modulated specific kinematic parameters. More importantly, although participants performed above chance in intention recognition, the similarity of motor patterns positively correlated with recognition accuracy. Overall, these data indicate that kinematic similarity exerts a facilitative role in intention recognition, providing further support to the view of action intention recognition as a visuo-motor process grounded in motor resonance.

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Perceiving what you intend to do from what you do: evidence for embodiment in social interactions

Cited by 23 publications

References 105 publications

The combined effects of motor and social goals on the kinematics of object-directed motor action

The combined effects of motor and social goals on the kinematics of object-directed motor action

Faster but Less Careful Prehension in Presence of High, Rather than Low, Social Status Attendees

Observer-Agent Kinematic Similarity Facilitates Action Intention Decoding

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