Walking on a line: A motor paradigm using rotation and reflection symmetry to study mental body transformations

Thirioux, Bérangère; Jorland, Gérard; Bret, Michel; Tramus, Marie-Hélène; Berthoz, Alain

doi:10.1016/j.bandc.2009.02.006

Cited by 51 publications

(55 citation statements)

References 74 publications

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“…Hence, the type of symmetry (either reflection or rotation symmetry) may provide an empirical criterion to infer which sort of mental body transformations is being performed within self-other interaction (i.e., either imagining the other's body as one's own body as reflected in the mirror or imagining one's own body at the other's body position). "Reflection" and "rotation" symmetry thus indicates that the "self" (the participant) is interacting with the "other" (an avatar, in the present case) with embodied and disembodied self-location, respectively, as shown in a recent behavioral study using virtual reality technology (Thirioux et al, 2009). Here, we will use "embodied selflocation" (or mental body transformation with embodied self-location) and "disembodied selflocation" (or mental body transformation with disembodied self-location) to refer to reflection symmetry and rotation symmetry, respectively.…”

Section: Paradigmmentioning

confidence: 60%

“…For this, we adapted the traditional psychological approach, an approach focusing on elementary mimicry (Bavelas et al, 1988) that is used to investigate, from the body posture, how individuals act together without explicit task instructions (Scheflen, 1964;O'Toole and Dubin, 1968;Stotland, 1969;Bavelas et al, 1986aBavelas et al, ,b, 1987Bavelas et al, , 1988Chartrand and Bargh, 1999;Tessari et al, 2002). This rotation and reflection symmetry paradigm (Bavelas et al, 1988;Thirioux et al, 2009) was adapted and merged with a paradigm using embodied and disembodied self-location during mental own-body imagery.…”

Section: Paradigmmentioning

confidence: 99%

“…We hypothesized that such "reflection symmetry" (as labeled by Bavelas et al, 1987Bavelas et al, , 1988; or body tilts "in mirror reversal," as in the study by Brugger, 2002) indicates that A, imagining his own-body at his actual body position [physical or "embodied" position (Arzy et al, 2006;Thirioux et al, 2009)], is further imagining that B's tilts are his own-body movements as reflected in a mirror. In contrast, we hypothesized that the second case or "rotation symmetry" (Bavelas et al, 1987(Bavelas et al, , 1988 or body tilts "with preservation of the lateral asymmetry," as in the study by Brugger, 2002) reflects that A is imagining himself at the B's body position ("disembodied" position) (Arzy et al, 2006;Thirioux et al, 2009), by performing a mental transformation of his body (or mental rotation). Hence, the type of symmetry (either reflection or rotation symmetry) may provide an empirical criterion to infer which sort of mental body transformations is being performed within self-other interaction (i.e., either imagining the other's body as one's own body as reflected in the mirror or imagining one's own body at the other's body position).…”

Section: Paradigmmentioning

confidence: 99%

“…Finally, participants are generally instructed explicitly to perform own-body or perspective mental transformations (Zacks et al, 1999;Decety, 2001, 2004;Vogeley et al, 2004;Blanke et al, 2005;Arzy et al, 2006). It is thus unclear whether and how the standing position as well as spontaneous versus explicit transformations affect mental imagery re-lated to self-location (Scheflen, 1964;Bavelas et al, 1987Bavelas et al, , 1988Thirioux et al, 2009). Accordingly, the mechanisms of "spontaneous" mental body transformations in "naturalistic" and "ecologically more valid" conditions are still unknown.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Mental Imagery of Self-Location during Spontaneous and Active Self–Other Interactions: An Electrical Neuroimaging Study

Thirioux¹,

Mercier²,

Jorland³

et al. 2010

J. Neurosci.

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Substantial data from the cognitive neurosciences point to the importance of bodily processing for the development of a comprehensive theory of the self. A key aspect of the bodily self is self-location, the experience that the self is localized at a specific position in space within one's bodily borders (embodied self-location). Although the neural mechanisms of self-location have been studied by manipulating the spatial location of one's visual perspective during mental imagery, such experiments were conducted in constrained, explicit, and unecological contexts such as explicit instructions in a prone/seated position, although most human interactions occur spontaneously while standing/walking. Using a motor paradigm, we investigated the behavioral and neural mechanisms of spontaneous self-location and mental body transformations during active human interaction. Using own-body imagery using spontaneous and explicit changes in self-location in standing participants, we report that spontaneous interactions with an avatar are neurally indistinguishable from explicit own-body transformation with disembodied self-location but differ from explicit own-body transformation with embodied self-location at 400 -600 ms after stimulus onset. We discuss these findings with respect to the neural mechanisms of perspective-taking and selflocation in spontaneous human interaction.

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Section: Paradigmmentioning

confidence: 60%

Section: Paradigmmentioning

confidence: 99%

Section: Paradigmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mental Imagery of Self-Location during Spontaneous and Active Self–Other Interactions: An Electrical Neuroimaging Study

Thirioux¹,

Mercier²,

Jorland³

et al. 2010

J. Neurosci.

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show abstract

“…Spontaneous perspective adoption is also found in experimental paradigms involving visual stimuli of persons (Belopolsky, Olivers, & Theeuwes, 2008;Frischen, Loach, & Tipper, 2009;Samson, Apperly, Braithwaite, Andrews, & Scott, 2010;Thirioux, Jorland, Bret, Tramus, & Berthoz, 2009;Tversky & Hard, 2009;Zwickel & Müller, 2010). What is more, people even adopt the perspective of geometrical shapes if the movement of the shapes appears intentional (Zwickel, 2009).…”

Section: Abstract Embodied Cognition Social Cognition Mental Modelsmentioning

confidence: 83%

On the relation between spontaneous perspective taking and other visuospatial processes

Zwickel

Müller

2013

Mem Cogn

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Common processes and representations engaged by visuospatial tasks were investigated by looking at four frequently used visuospatial research paradigms, the aim being to contribute to a better understanding of which specific processes are addressed in the different paradigms compared. In particular, the relation between spontaneous and instructed perspective taking, as well as mental rotation of body-part/non-body-part objects, was investigated. To this end, participants watched animations that have been shown to lead to spontaneous perspective taking. While they were watching these animations, participants were asked to explicitly adopt another perspective (Experiment 1), perform a mental object rotation task that involved a nonbody-part object (Experiment 2), or perform a mental rotation of a body-part object (Experiment 3). Patterns of interference between the tasks, reflected in the reaction time patterns, showed that spontaneous and instructed perspective taking rely on similar representational elements to encode orientation. By contrast, no such overlap was found between spontaneous perspective taking and the rotation of non-body-part objects. Also, no overlap in orientation representation was evident with mental body-part rotations. Instead of an overlap in orientation representations, the results suggest that spontaneous perspective taking and the mental rotation of body parts rely on similar-presumably, motor-processes. These findings support the view that motor processes are involved in perspective taking and mental rotation of body parts. Keywords Embodied cognition . Social cognition . Mental modelsAdequate social behavior nearly always requires the ability to appreciate that a given situation is perceived and interpreted differently by different people involved. Imagine a football game in which the players did not constantly monitor what other players and the referee could see and how a dive would be interpreted. Or think of situations in which people judge whether or not an approaching car is seen by a child-an ability that can save a life. Because representing how others perceive a given situation is so frequently encountered in,

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Fighting the game. Command systems and player-avatar interaction in fighting games in a social cognitive neuroscience framework

Mattiassi

2019

Multimed Tools Appl

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Walking on a line: A motor paradigm using rotation and reflection symmetry to study mental body transformations

Cited by 51 publications

References 74 publications

Mental Imagery of Self-Location during Spontaneous and Active Self–Other Interactions: An Electrical Neuroimaging Study

Mental Imagery of Self-Location during Spontaneous and Active Self–Other Interactions: An Electrical Neuroimaging Study

On the relation between spontaneous perspective taking and other visuospatial processes

Fighting the game. Command systems and player-avatar interaction in fighting games in a social cognitive neuroscience framework

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