Understanding other people's actions: Intention and attention.

Castiello, Umberto

doi:10.1037/0096-1523.29.2.416

Cited by 111 publications

(92 citation statements)

References 42 publications

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“…In addition, experimental data show that the mere observation of the movements of another person interferes with one's execution of a similar action (Kilner, Paulignan & Blakemore, 2003). Interestingly, such interference is less noticeable when the movement being observed is generated by human-figured robots (see also Castiello, 2003). Recent work in our laboratory has examined the degree of coordination that occurs when a single individual performs the present task in front of a computer generated hand that moves along a sinusoidal or a prerecorded realistic trajectory (de Guzman, Tognoli, Lagarde, Jantzen, & Kelso, 2005).…”

Section: Discussionmentioning

confidence: 99%

Social coordination dynamics: Measuring human bonding

Oullier¹,

Guzman²,

Jantzen³

et al. 2008

Social Neuroscience

322

282

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Spontaneous social coordination has been extensively described in natural settings but so far no controlled methodological approaches have been employed that systematically advance investigations into the possible self-organized nature of bond formation and dissolution between humans. We hypothesized that, under certain contexts, spontaneous synchrony -a well-described phenomenon in biological and physical settings-could emerge spontaneously between humans as a result of information exchange. Here, a new way to quantify interpersonal interactions in real time is proposed. In a simple experimental paradigm, pairs of participants facing each other were required to actively produce actions, while provided (or not) with the vision of similar actions being performed by someone else. New indices of interpersonal coordination, inspired by the theoretical framework of coordination dynamics (based on relative phase and frequency overlap between movements of individuals forming a pair) were developed and used. Results revealed that spontaneous phase synchrony (i.e., unintentional in-phase coordinated behavior) between two people emerges as soon as they exchange visual information, even if they are not explicitly instructed to coordinate with each other. Using the same tools, we also quantified the degree to which the behavior of each individual remained influenced by the social encounter even after information exchange had been removed, apparently a kind of social memory.

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Section: Discussionmentioning

confidence: 99%

Social coordination dynamics: Measuring human bonding

Oullier¹,

Guzman²,

Jantzen³

et al. 2008

Social Neuroscience

322

282

View full text Add to dashboard Cite

show abstract

“…A person requesting assistance and making eye contact influences the kinematics of a reach and grasp action, compared with a person making the same gesture without eye contact [31]. The gaze of a second person can influence kinematics even when the potential for direct gaze is present, that is, when the face is visible and eye movements are permitted [32]. In infants, direct-gaze cues also enhance imitation learning [33], which has been taken as evidence for natural pedagogy.…”

Section: Direct Gaze Modulates Actionsmentioning

confidence: 99%

Gazing at me: the importance of social meaning in understanding direct-gaze cues

Hamilton¹

2016

Phil. Trans. R. Soc. B

117

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One contribution of 16 to a theme issue 'Understanding self and other: from origins to disorders'. Direct gaze is an engaging and important social cue, but the meaning of direct gaze depends heavily on the surrounding context. This paper reviews some recent studies of direct gaze, to understand more about what neural and cognitive systems are engaged by this social cue and why. The data show that gaze can act as an arousal cue and can modulate actions, and can activate brain regions linked to theory of mind and self-related processing. However, all these results are strongly modulated by the social meaning of a gaze cue and by whether participants believe that another person is really watching them. The implications of these contextual effects and audience effects for our theories of gaze are considered.

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“…This motor resonance mechanism is also involved in action imitation as reported by various functional imaging studies (e.g., Buccino et al, 2004;Decety et al, 1997Decety et al, , 2002Iacoboni et al, 1999;Nishitani and Hari, 2000;Tanaka et al, 2001;Tanaka and Inui, 2002;Williams et al, 2005). Furthermore, interference between action observation and action execution has been demonstrated in a number of behavioral studies (Brass et al, 2001;Castiello, 2003;Kilner et al, 2003;Prinz, 2005), which also suggests a direct link between perception and action.…”

Section: Introductionmentioning

confidence: 99%

Neural circuits involved in imitation and perspective-taking

2006

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Is it important to adopt the perspective of the model when learning a new skill? Is the "mirror system" equally involved when the teacher is facing or side-by-side with students? In this functional MRI study, we measured the cerebral hemodynamic changes in participants who watched video-clips depicting simple hand or foot actions. The participants either watched passively or imitated these actions. Half the video-clips depicted actions filmed from the perspective of the participant (1st-person perspective) and half from a frontal view as if watching someone else (3rd-person perspective). Behavioral results showed that latency to imitate was significantly shorter for the 1st-person perspective than the 3rd-person perspective. Functional imaging results demonstrate that the observation of intransitive actions engaged primary visual and extrastriate visual areas, but not the premotor cortex. Imitation vs. observation of actions yielded enhanced signal in the contralateral somatosensory and motor cortices, cerebellum, left inferior parietal lobule and superior parietal cortex, and left ventral premotor cortex. Activity in the lateral occipital cortex around the extrastriate body area was significantly enhanced during imitation, as compared to observation of actions confirming that this region involvement reaches beyond the perception of body parts. Moreover, comparisons of the two visual perspectives showed more activity in the left sensory-motor cortex for 1st-person, even during observation alone, and in the lingual gyrus for 3rd-person perspective. These findings suggest that the 1st-person perspective is more tightly coupled to the sensory-motor system than the 3rd-person perspective, which requires additional visuospatial transformation. Published by Elsevier Inc.

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Understanding other people's actions: Intention and attention.

Cited by 111 publications

References 42 publications

Social coordination dynamics: Measuring human bonding

Social coordination dynamics: Measuring human bonding

Gazing at me: the importance of social meaning in understanding direct-gaze cues

Neural circuits involved in imitation and perspective-taking

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