Pawel Tacikowski

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Pawel Tacikowski

Pawel TacikowskiPawel TacikowskiPawel Tacikowski
Home
About me
CV
Publications
Blog
Contact
More
  • Home
  • About me
  • CV
  • Publications
  • Blog
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  • About me
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Abstract self

Whether you read your name written on a piece of paper, you hear it, or you look at yourself in the mirror, it does not matter, you know it is you. Thus, apart from stimulus-specific representations of your own name, face, or body, your brain must represent the self also in an abstract manner, across sensory modalities. Can these perceptual and abstract components of the neural self-representation be dissociated?

We found that electrophysiological brain activity was initially different during looking at one's own name and face, but after around 300 ms this activity became almost indistinguishable. Thus, the perceptual self-representations were activated prior to the abstract self-representation, and it took the brain around 300 ms to access the latter. In another study, we found that brain activity in the medial prefrontal cortex was similar when the participants read or heard their own names, which suggests that this brain region is involved in the abstract (cross-modal) representation of self-concept.

Full text:

Tacikowski, P., & Nowicka, A. (2010). Allocation of attention to self-name and self-face: An ERP study. Biological Psychology, 84, 318-324. PDF

Tacikowski, P., Brechmann, A., Nowicka, A. (2013). Cross-modal pattern of brain activations associated with the processing of self- and significant other’s name. Human Brain Mapping, 34:2069–2077. PDF

Similar electrophysiological responses to own name and own face ~ 300 ms after stimulus onset

Event-related potentials from three scalp electrodes recorded when the participants were looking at their own name or face. The amplitude of P300 (a positive peak around 300 ms after stimulus onset) was similar during the processing of both stimuli.

Cross-modal and modality-specific brain activations during hearing and seeing one's own name

(A) Cross-modal brain responses, common for self- and significant other’s name, were present in the medial prefrontal cortex. (B) Auditory-specific activations were found in the left and right inferior frontal gyri. Bar plots show mean contrast estimates at peak activations. Error bars represent SEM. Abbreviations: S - self-name; Si - significant other’s name; F - famous person’s name; US - unknown name with the same first name as the subject; USi - unknown name with the same first name as the significant other; UF - unknown name with the same first name as the famous person.

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