Exploring the role of self/other perspective-shifting in theory of mind with behavioural and EEG measures
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Theory of Mind (ToM) refers to the ability to compute and attribute mental states to oneself and other people. This study sought to assess the extent of differentiation between “Self” and “Other” in ToM processes, and, of particular importance, the key role of perspective-shifting between “Self” and “Other”. Utilizing a newly established false-belief paradigm in a matched design, healthy adult participants completed the task whilst behavioural measures (response times, error rates) and electrophysiological (EEG) recordings were taken. Results revealed that self-oriented belief-attribution was faster and less error-prone than other-oriented belief-attribution, and demonstrated a key role of perspective-shifting. Perspective shifts from Self-to-Other resulted in longer response times and more errors than shifts from Other-to-Self. In contrast, no difference between self and other probes was found in no perspective-shift trials. Reflecting this, EEG recordings showed a significant interaction between Perspective-Shifting and Probe Type at an early onset across right parieto/occipito-lateral areas (250 ms post-stimulus onset), and across frontal-central areas from 500 ms post-stimulus onset, indicating the key role of these areas in ToM engagement. Results demonstrate that “Self” and “Other” can be distinguished at a behavioural level, and highlight the critical role of “Perspective-Shifting” in ToM processes.
Bradford , E E F , Gomez , J-C & Jentzsch , I 2019 , ' Exploring the role of self/other perspective-shifting in theory of mind with behavioural and EEG measures ' , Social Neuroscience , vol. 14 , no. 5 , pp. 530-544 . https://doi.org/10.1080/17470919.2018.1514324
© 2018 Informa UK Limited, trading as Taylor & Francis Group. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1080/17470919.2018.1514324
DescriptionThis work was supported by the Economic and Social Research Council [grant number ES/J500136/1] in the form of a three-year PhD studentship awarded to EB.
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