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Giving a helping hand: effects of joint attention on mental rotation of body parts.

Böckler A, Knoblich G, Sebanz N - Exp Brain Res (2011)

Bottom Line: Research on joint attention has addressed both the effects of gaze following and the ability to share representations.Results revealed a significant flattening of the performance rotation curve when participants attended jointly (experiment 1).Thus, attending to objects together from opposite perspectives makes people adopt an allocentric rather than the default egocentric reference frame.

View Article: PubMed Central - PubMed

Affiliation: Donders Institute for Brain, Cognition, & Behaviour, Centre for Cognition, Radboud University, P.O. Box 9104, 6500 HE Nijmegen, The Netherlands. A.Bockler@donders.ru.nl

ABSTRACT
Research on joint attention has addressed both the effects of gaze following and the ability to share representations. It is largely unknown, however, whether sharing attention also affects the perceptual processing of jointly attended objects. This study tested whether attending to stimuli with another person from opposite perspectives induces a tendency to adopt an allocentric rather than an egocentric reference frame. Pairs of participants performed a handedness task while individually or jointly attending to rotated hand stimuli from opposite sides. Results revealed a significant flattening of the performance rotation curve when participants attended jointly (experiment 1). The effect of joint attention was robust to manipulations of social interaction (cooperation versus competition, experiment 2), but was modulated by the extent to which an allocentric reference frame was primed (experiment 3). Thus, attending to objects together from opposite perspectives makes people adopt an allocentric rather than the default egocentric reference frame.

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a Schematic drawing of the experimental setting. Two people were sitting opposite each other with a flat screen in between them. Both of them responded pressing keys with their right hand. Both participants placed their left hand under the table. Each participant’s right hand was hidden inside a box. b Sequence of events on each trial
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Fig1: a Schematic drawing of the experimental setting. Two people were sitting opposite each other with a flat screen in between them. Both of them responded pressing keys with their right hand. Both participants placed their left hand under the table. Each participant’s right hand was hidden inside a box. b Sequence of events on each trial

Mentions: Participants were tested in same-sex pairs and were seated at opposite sides of a table (see Fig. 1). In between them was a 17-in TFT monitor that was fixed to the table so that the screen faced the ceiling. The viewing distance to the monitor was 70 cm. Ambient light was kept at a constant level.Fig. 1


Giving a helping hand: effects of joint attention on mental rotation of body parts.

Böckler A, Knoblich G, Sebanz N - Exp Brain Res (2011)

a Schematic drawing of the experimental setting. Two people were sitting opposite each other with a flat screen in between them. Both of them responded pressing keys with their right hand. Both participants placed their left hand under the table. Each participant’s right hand was hidden inside a box. b Sequence of events on each trial
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3102195&req=5

Fig1: a Schematic drawing of the experimental setting. Two people were sitting opposite each other with a flat screen in between them. Both of them responded pressing keys with their right hand. Both participants placed their left hand under the table. Each participant’s right hand was hidden inside a box. b Sequence of events on each trial
Mentions: Participants were tested in same-sex pairs and were seated at opposite sides of a table (see Fig. 1). In between them was a 17-in TFT monitor that was fixed to the table so that the screen faced the ceiling. The viewing distance to the monitor was 70 cm. Ambient light was kept at a constant level.Fig. 1

Bottom Line: Research on joint attention has addressed both the effects of gaze following and the ability to share representations.Results revealed a significant flattening of the performance rotation curve when participants attended jointly (experiment 1).Thus, attending to objects together from opposite perspectives makes people adopt an allocentric rather than the default egocentric reference frame.

View Article: PubMed Central - PubMed

Affiliation: Donders Institute for Brain, Cognition, & Behaviour, Centre for Cognition, Radboud University, P.O. Box 9104, 6500 HE Nijmegen, The Netherlands. A.Bockler@donders.ru.nl

ABSTRACT
Research on joint attention has addressed both the effects of gaze following and the ability to share representations. It is largely unknown, however, whether sharing attention also affects the perceptual processing of jointly attended objects. This study tested whether attending to stimuli with another person from opposite perspectives induces a tendency to adopt an allocentric rather than an egocentric reference frame. Pairs of participants performed a handedness task while individually or jointly attending to rotated hand stimuli from opposite sides. Results revealed a significant flattening of the performance rotation curve when participants attended jointly (experiment 1). The effect of joint attention was robust to manipulations of social interaction (cooperation versus competition, experiment 2), but was modulated by the extent to which an allocentric reference frame was primed (experiment 3). Thus, attending to objects together from opposite perspectives makes people adopt an allocentric rather than the default egocentric reference frame.

Show MeSH