![]() This has been recently extended to ownership over an entire body (Full Body Illusion), of which different variations exist. ![]() For example, in the Rubber Hand Illusion (RHI) 10, individuals experience ownership over a fake (rubber) hand when placed in a congruent anatomical position and stroked in temporal synchrony with their own hand, which is hidden from view. Together, exteroceptive and interoceptive sensory signals are integrated to create a coherent sense of body ownership through which we interact with our environment 2.Įxperimental paradigms have been successfully used to investigate how body ownership is shaped by the integration of incoming multisensory information. within the body) such as heart rate, and via proprioceptive pathways 7– 9. Additionally, incoming signals emerge via interoceptive modalities (i.e. outside the body) such as vision and touch 3, 4, specifically within the boundaries of peripersonal space surrounding the body 5, 6. Such signals originate via exteroceptive modalities (i.e. Intuitively, this feeling appears stable and durable amongst humans, yet scientific studies have demonstrated that the sense of body ownership is a fragile outcome of integrating multiple sensory signals. Overall, this study suggests that congruent visuoproprioceptive cues can be sufficient to induce subjective embodiment of a whole body, in the absence of visuotactile integration and beyond mere confabulatory responses.īody ownership, the feeling that our body belongs to us and is distinct from other people’s bodies, is a fundamental component of our sense of self 1, 2. Furthermore, the effects of visual capture and perceived pleasantness of touch was not modulated by subthreshold eating disorder psychopathology. The velocity of the touch that participants received (affective/non-affective) did not differ in modulating visual capture effects. In total, 40% of participants experienced subjective embodiment towards the mannequin body following mere visual observation, and this effect was significantly higher than conditions which included touch to participants own, unseen body. Moreover, we investigated whether slow, affective touch on participants’ own, unseen body (without concomitant touch on the seen mannequin) disrupted visual capture effects to a greater degree than fast, non-affective touch. Thus, across two experiments (total N = 80), we investigated how mere visual observation of a mannequin body, viewed from a first-person perspective, influenced subjective embodiment independently from concomitant visuotactile integration. However, the extent to which embodiment is due to the ‘visual capture’ of congruent visuoproprioceptive information alone remains unclear. PsycINFO Database Record (c) 2009 APA, all rights reserved.Typically, multisensory illusion paradigms emphasise the importance of synchronous visuotactile integration to induce subjective embodiment towards another body. These results indicate that there is bottom-up capture of visual attention by irrelevant auditory and visual stimuli that cannot be suppressed by top-down attentional control. ![]() The benefits disappear when the attentional focus is increased. By using not only valid and invalid exogenous cues but also neutral cues that provide temporal but no spatial information, they found performance benefits as well as costs when attention is not strongly focused. In this study, the authors modulated the degree of attentional focus by presenting endogenous cues with varying reliability and by displaying placeholders indicating the precise areas where the target stimuli could occur. Moreover, previous studies have not differentiated between capture by onsets presented at a nontarget (invalid) location and possible performance benefits occurring when the target location is (validly) cued. However, the question of whether such attentional capture disappears when attention is focused endogenously beforehand has not yet been answered. It is well known that auditory and visual onsets presented at a particular location can capture a person's visual attention.
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