Read by QxMD icon Read


Laurent Cleret de Langavant, Charlotte Jacquemot, Virginie Cruveiller, Emmanuel Dupoux, Anne-Catherine Bachoud-Lévi
Pointing is a communicative gesture that allows individuals to share information about surrounding objects with other humans. Patients with heterotopagnosia are specifically impaired in pointing to other humans' body parts but not in pointing to themselves or to objects. Here, we describe a female patient with heterotopagnosia who was more accurate in pointing to men's body parts than to women's body parts. We replicated this gender effect in healthy participants with faster reaction times for pointing to men's body parts than to women's body parts...
July 2016: Cognitive Neuropsychology
Laurent Cleret de Langavant, Iris Trinkler, Philippe Remy, Bérangère Thirioux, Joseph McIntyre, Alain Berthoz, Emmanuel Dupoux, Anne-Catherine Bachoud-Lévi
Humans usually point at objects to communicate with other persons, although they generally avoid pointing at the other's body. Moreover, patients with heterotopagnosia after left parietal damage cannot point at another person's body parts, although they can point at objects and at their own body parts and although they can grasp the others' body parts. Strikingly, their performance gradually improves for figurative human body targets. Altogether, this suggests that the body of another real person holds a specific status in communicative pointing...
July 2012: Neuropsychologia
Laurent Auclair, Marion Noulhiane, Patrick Raibaut, Gerard Amarenco
We studied the involvement of the parietal cortex in interpersonal body representation in a left parietal stroke patient. We used tasks assessing different types of body representations and localization of object parts. The patient performed normally on all tasks of body knowledge. However, she was unable to locate body parts on another person or on body representations. In contrast, she pointed correctly to the same body parts on herself or object representations. The data support the important role of the left parietal cortex in the transformation of intrinsic spatial coding of body parts localization in extrinsic body part coordinates...
December 2009: Neurocase
Laurent Cleret de Langavant, Iris Trinkler, Pierre Cesaro, Anne-Catherine Bachoud-Lévi
Heterotopagnosia is the acquired inability of brain-lesioned patients to point at someone else's body parts when prompted. The cognitive basis of this disorder is unclear. It might result from a biological function deficit critical for communication in human beings; alternatively, it could result from the disruption of a body representation. Here, we report three patients with heterotopagnosia following a recent left parieto-occipital stroke and a previous insular lesion. The patients were tested on their ability to name, point out and grasp several targets including body parts (own, real others' and figurative others')...
June 2009: Neuropsychologia
J D Degos, A C Bachoud-Levi
We describe a disorder similar to body-image agnosia or autotopagnosia characterized by the inability to designate targets situated outside the body. This disorder, which we have termed allotopagnosia, occurs exclusively in subjects with a lesion involving the posterior region of the left parietal lobe. The most common manifestation is the designation of parts of the body of another person as being part of the patient's own body (heterotopagnosia with self-designation). This disorder cannot be explained by aphasia, apraxia, or visuomotor dysfunction nor by an inability to identify parts of the body as self...
May 1998: Revue Neurologique
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"