Über Störungen der Selbstwahrnehmung bei linksseitiger Hemiplegie

Pötzl, O.

doi:10.1007/bf02900049

Cited by 48 publications

(7 citation statements)

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“…As we put forward in the rest of this section, an array of bodily illusions—all dependent on classical principles of multisensory integration—has been described and utilized to scrutinize the neurobiological underpinning of bodily self‐consciousness. Furthermore, more recently, these illusions, because of their impact of bodily self‐consciousness, have been used to demonstrate the link between the latter and other aspects of perception and cognition .…”

Section: Bodily Self‐consciousnessmentioning

confidence: 99%

“…Indeed, while work by Stein and colleagues in the late 1980s and early 1990s established the modern era study of multisensory integration (see below), Botvinick and Cohen in the late 1990s demonstrated via the rubber‐hand illusion (RHI; see below) that the sense of body ownership is not only malleable, but also dependent on the precise spatio‐temporal characteristics of multisensory inputs . This observation opened the possibility for empirical studies in the field of bodily self‐consciousness, previously largely limited to theoretical investigations (although see Poetzl and Gerstmann for early neuropsychology evaluation of body‐related disorders). Furthermore, this early work, linking the fields of multisensory integration and bodily self‐consciousness, has permeated the design, implementation, and interpretation of much of the scientific inquiry within both fields.…”

Section: Introduction and Roadmapmentioning

confidence: 99%

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From multisensory integration in peripersonal space to bodily self‐consciousness: from statistical regularities to statistical inference

Noel

Blanke

Serino

2018

Annals of the New York Academy of Sciences

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Integrating information across sensory systems is a critical step toward building a cohesive representation of the environment and one's body, and as illustrated by numerous illusions, scaffolds subjective experience of the world and self. In the last years, classic principles of multisensory integration elucidated in the subcortex have been translated into the language of statistical inference understood by the neocortical mantle. Most importantly, a mechanistic systems-level description of multisensory computations via probabilistic population coding and divisive normalization is actively being put forward. In parallel, by describing and understanding bodily illusions, researchers have suggested multisensory integration of bodily inputs within the peripersonal space as a key mechanism in bodily self-consciousness. Importantly, certain aspects of bodily self-consciousness, although still very much a minority, have been recently casted under the light of modern computational understandings of multisensory integration. In doing so, we argue, the field of bodily self-consciousness may borrow mechanistic descriptions regarding the neural implementation of inference computations outlined by the multisensory field. This computational approach, leveraged on the understanding of multisensory processes generally, promises to advance scientific comprehension regarding one of the most mysterious questions puzzling humankind, that is, how our brain creates the experience of a self in interaction with the environment.

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Section: Bodily Self‐consciousnessmentioning

confidence: 99%

Section: Introduction and Roadmapmentioning

confidence: 99%

From multisensory integration in peripersonal space to bodily self‐consciousness: from statistical regularities to statistical inference

Noel

Blanke

Serino

2018

Annals of the New York Academy of Sciences

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“…What are the involved brain mechanisms? Extending earlier data from neurological patients (Critchley and Lhermitte 1954;Gerstmann 1942;Head and Holmes 1911;Hécaen and de Ajuriaguerra 1952;Pötzl 1925;Schilder 1935), more recent neurological theories stress the importance of bodily processing for the self and self-consciousness (bodily self-consciousness). These theories emphasize the importance of visual, tactile, proprioceptive, motor, vestibular, and interoceptive signals and their multisensory and sensorimotor integration for the representation of body and self (Aspell et al…”

mentioning

confidence: 93%

Leg muscle vibration modulates bodily self-consciousness: integration of proprioceptive, visual, and tactile signals

Palluel

Aspell

Blanke

2011

Journal of Neurophysiology

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Behavioral studies have used visuo-tactile conflicts between a participant's body and a visually presented fake or virtual body to investigate the importance of bodily perception for self-consciousness (bodily self-consciousness). Illusory self-identification with a fake body and changes in tactile processing--modulation of visuo-tactile cross-modal congruency effects (CCEs)--were reported in previous findings. Although proprioceptive signals are deemed important for bodily self-consciousness, their contribution to the representation of the full body has not been studied. Here we investigated whether and how self-identification and tactile processing (CCE magnitude) could be modified by altering proprioceptive signals with 80-Hz vibrations at the legs. Participants made elevation judgments of tactile cues (while ignoring nearby lights) during synchronous and asynchronous stroking of a seen fake body. We found that proprioceptive signals during vibrations altered the magnitude of self-identification and mislocalization of touch (CCE) in a synchrony-dependent fashion: we observed an increase of self-identification and CCE magnitude during asynchronous stroking. In a second control experiment we studied whether proprioceptive signals per se, or those from the lower limbs in particular, were essential for these changes. We applied vibrations at the upper limbs (which provide no information about the position of the participant's body in space) and in this case observed no modulation of bodily self-consciousness or tactile perception. These data link proprioceptive signals from the legs that are conveyed through the dorsal column-medial lemniscal pathway to bodily self-consciousness. We discuss their integration with bodily signals from vision and touch for full-body representations.

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“…This view-point attributes to narcissistic motives the fact that the patient refuses to admit to himself that his extremity is missing. The phenomenon of anosognosia has been related by Potzl [40] and Schilder with the role of repression. It must be pointed out that in all the above neurological conditions, the condition is a sign of loss of function which can onlv be demonstrated by testing.…”

mentioning

confidence: 99%

The Depersonalization Syndrome

Hj¹

1946

Proceedings of the Royal Society of Medicine

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Über Störungen der Selbstwahrnehmung bei linksseitiger Hemiplegie

Cited by 48 publications

References 0 publications

From multisensory integration in peripersonal space to bodily self‐consciousness: from statistical regularities to statistical inference

From multisensory integration in peripersonal space to bodily self‐consciousness: from statistical regularities to statistical inference

Leg muscle vibration modulates bodily self-consciousness: integration of proprioceptive, visual, and tactile signals

The Depersonalization Syndrome

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