2022
DOI: 10.1093/braincomms/fcac032
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Structural connectivity associated with the sense of body ownership: a diffusion tensor imaging and disconnection study in patients with bodily awareness disorder

Abstract: The brain mechanisms underlying the emergence of a normal sense of body ownership can be investigated starting from pathological conditions in which body awareness is selectively impaired. Here, we focused on pathological embodiment, a body ownership disturbance observed in brain-damaged patients who misidentify other people’s limbs as their own. We investigated whether such body ownership disturbance can be classified as a disconnection syndrome, using three different approaches based on diffusion tensor imag… Show more

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Cited by 19 publications
(13 citation statements)
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“…Connected by the third tract of the superior longitudinal fasciculus (SLF III), TPJ and IFG have been traditionally linked to the ventral attention network and specifically to attentional processes related to stimulus orientation (Vossel et al, 2014;Corbetta et al, 2008). However, recent studies have suggested a more complicated role of TPJ and IFG in social cognition (Patel et al, 2019(Patel et al, , 2021Hartwigsen et al, 2019) as also suggested by the fact that lesions in SLF III may result in embodiment dysfunctions (Errante et al, 2022). Here, while we found multiple body nodes around IFG and TPJ (Fig.…”
Section: The Subnetwork For Human-specific Body Processingmentioning
confidence: 99%
“…Connected by the third tract of the superior longitudinal fasciculus (SLF III), TPJ and IFG have been traditionally linked to the ventral attention network and specifically to attentional processes related to stimulus orientation (Vossel et al, 2014;Corbetta et al, 2008). However, recent studies have suggested a more complicated role of TPJ and IFG in social cognition (Patel et al, 2019(Patel et al, , 2021Hartwigsen et al, 2019) as also suggested by the fact that lesions in SLF III may result in embodiment dysfunctions (Errante et al, 2022). Here, while we found multiple body nodes around IFG and TPJ (Fig.…”
Section: The Subnetwork For Human-specific Body Processingmentioning
confidence: 99%
“…Thus, further studies should establish whether different results can be found with a familiar other-hand. Finally, future applications of our protocol in brain-damaged patients with selective impairment of the self-other discrimination mechanism (see e.g., 69 , 70 ) could improve our understanding of this clinical condition.…”
Section: Discussionmentioning
confidence: 99%
“…From an anatomical point of view, the present data (see Figure 8d) support the view of PE as a disconnection deficit with the superior longitudinal fasciculus (SLF) as the mainly involved fiber tract (for an extension discussion of similar results in different samples see also Fossataro et al, 2018; Pia et al, 2020). In particular, it was found that the lesion disrupts the more ventral component of this fasciculus (i.e., SLF III) connecting temporal areas, including the extrastriate body area (EBA) involved in the visual recognition of the body, and frontal areas, involved in the sensorimotor representation of the body (i.e., the ventral premotor cortex, vPMC) (Errante et al, 2022). We may hypothesize that this fiber tract lesion, together with the selective damage at the middle temporal gyrus (see Figure 8d), interrupts the flow of information to and from EBA that are critical for body parts visual processing (Cazzato et al, 2014; Downing & Peelen, 2016; Myers & Sowden, 2008; Urgesi et al, 2004), thus potentially explaining the overall worst performance of E+ patients at the implicit task, as compared to E− patients and Controls.…”
Section: Discussionmentioning
confidence: 99%
“…Recently, Garbarini and coworkers (Errante et al, 2022; Fossataro et al, 2016, 2018, 2020; Garbarini et al, 2013, 2014, 2015; Garbarini & Pia, 2013; Pia et al, 2013, 2016, 2020; Ronga et al, 2019; Sebastiano et al, 2022) described also the opposite behavior in brain‐damaged patients who erroneously identify other people's hand as their own. The term of pathological embodiment (PE) has been coined by the authors to refer to this clinical manifestation.…”
Section: Introductionmentioning
confidence: 99%