Publications by Lukas Heydrich

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What is the self? This major philosophical question has been considered too complex to be studied in neuroscience. However, during the last 20 years, researchers from different disciplines within the cognitive neurosciences have started investigating the n ...

Adopting the perspective of another person is an important aspect of social cognition and has been shown to depend on multisensory signals from one's own body. Recent work suggests that interoceptive signals not only contribute to own-body perception and s ...

Important brainstem regions are involved in the regulation of rapid eye movement sleep. We hypothesized that brainstem stroke is associated with dysregulated rapid eye movement sleep and related muscle activity. We compared quantitative/qualitative polysom ...

We describe the case of a 33-year-old man with complex partial seizures characterized by the feeling of being projected outside his body, including dissociation of "mind and self from body" (disembodiment), followed by vestibular vertigo due to right front ...

Although many studies have elucidated the neurocognitive mechanisms supporting the processing of externally generated sensory signals, less is known about the processing of interoceptive signals related to the viscera. Drawing a parallel with research on a ...

Objective Depersonalization refers to the sensation of being detached from one's body, often associated with feelings of loss of control over one's own body, actions, or thoughts. Derealization refers to the altered perception of one's surroundings that is ...

Neurological disorders of body representation have for a long time suggested the importance of multisensory processing of bodily signals for self-consciousness. One such group of disorders--illusory own body perceptions affecting the entire body--has been ...

Prominent theories highlight the importance of bodily perception for self-consciousness, but it is currently not known whether bodily perception is based on interoceptive or exteroceptive signals or on integrated signals from these anatomically distinct sy ...

In neurology and psychiatry the detailed study of illusory own body perceptions has suggested close links between bodily processing and self-consciousness. One such illusory own body perception is heautoscopy where patients have the sensation of being redu ...

Partial and full own-body illusions of neurological origin have been claimed crucial to understand the contribution of bodily experience and perception to self-consciousness. Whereas partial body illusions are relatively common and well defined, much less ...

Prominent theories highlight the importance of bodily perception for self-consciousness, but it is currently not known whether this is based on interoceptive or exteroceptive signals or on integrated signals from these anatomically distinct systems, nor wh ...

Recent research in cognitive neuroscience using virtual reality, robotic technology and brain imaging has linked self-consciousness to the processing and integration of multisensory bodily signals. This work on bodily self-consciousness has implicated the ...

Tales of ghosts, wraiths, and other apparitions have been reported in virtually all cultures. The strange sensation that somebody is nearby when no one is actually present and cannot be seen (feeling of a presence, FOP) is a fascinating feat of the human m ...

Objectives Ever since John Hughlings Jackson first described the so-called 'dreamy state' during temporal lobe epilepsy, that is, the sense of an abnormal familiarity (deja vu) or vivid memory-like hallucinations from the past (experiential hallucinations) ...

The experience of singularity of the conscious self may break down in heautoscopy. In heautoscopy patients see a double or doppelganger of themselves. Moreover, the self may be experienced as reduplicated—existing at two or even more locations simultaneous ...

Somatoparaphrenia is a delusional misidentification and confabulation of body parts, usually arm or hand, opposite to a cerebral lesion, generally of the "minor" right hemisphere. There is some controversy concerning lesion site ( fronto-parietal; parieto- ...

The symptoms of patients with left personal neglect are characterized by inattention towards contralesional (left) body parts while at the same time explicitly ascertaining ownership for the neglected hemibody. It is currently unknown if personal neglect i ...

Lukas Heydrich

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Turning Body and Self Inside Out : Extero- and Interoceptive Signal Integration in Temporo-parietal and Insular Cortex

Interoception and Empathy Impact Perspective Taking

REM sleep and muscle atonia in brainstem stroke: A quantitative polysomnographic and lesion analysis study

Abnormal self-location and vestibular vertigo in a patient with right frontal lobe epilepsy

Suppression of the auditory N1-component for heartbeat-related sounds reflects interoceptive predictive coding

Depersonalization- and derealization-like phenomena of epileptic origin

Illusory own body perceptions: case reports and relevance for bodily self-consciousness

Turning Body and Self Inside Out. Visualized Heartbeats Alter Bodily Self-Consciousness and Tactile Perception

Visual capture and the experience of having two bodies – Evidence from two different virtual reality techniques

Partial and full own-body illusions of epileptic origin in a child with right temporoparietal epilepsy

Cardio-visual full body illusion alters bodily self-consciousness and tactile processing in somatosensory cortex

Distinct illusory own-body perceptions caused by damage to posterior insula and extrastriate cortex

Neurological and Robot-Controlled Induction of an Apparition

Lateralising value of experiential hallucinations in temporal lobe epilepsy

Visual capture and the experience of having two bodies

Crossed somatoparaphrenia: an unusual new case and a review of the literature

Illusory hand ownership in a patient with personal neglect for the upper limb, but no somatoparaphenia