Congruency of body-related information induces somatosensory reorganization

Cardini, Flavia; Longo, Matthew R.

doi:10.1016/j.neuropsychologia.2016.02.013

Cited by 21 publications

(24 citation statements)

References 71 publications

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“…Alterations in the somatosensory cortex are thought to be behind the anomalous bodily experiences of people with CRPS (Flor et al, 1995, 1997; Maihöfner et al, 2003, 2004; McCabe et al, 2003; Pleger et al, 2005; Marinus et al, 2011) and previous studies using sensory feedback to manipulate people's body representations have linked their results to recalibration of somatosensory receptive fields (RF) in the somatosensory cortex (Taylor-Clarke et al, 2004; de Vignemont et al, 2005; Haggard et al, 2007; Cardinali et al, 2009, 2012; Cardini et al, 2011, 2012, 2013; Tajadura-Jiménez et al, 2012, 2016; Canzoneri et al, 2013a,b; Miller et al, 2014; Cardini and Longo, 2016). We suggest that the observed changes in body-representation in the current study may also indicate reorganization within the somatosensory cortex The observed changes in kinematics of gait may also support this suggestion, if it is considered that the control of body movements relies on somatosensory representations of body dimensions (Holmes and Spence, 2004; Maravita and Iriki, 2004; Cardinali et al, 2009; Tajadura-Jiménez et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

“…Of relevance to the present research, some of these studies have proposed that the altering of sensory cues related to one's body can result in reorganization within the somatosensory cortex (Taylor-Clarke et al, 2004; de Vignemont et al, 2005; Haggard et al, 2007; Cardinali et al, 2009, 2012; Cardini et al, 2011, 2012, 2013; Tajadura-Jiménez et al, 2012, 2016; Canzoneri et al, 2013a,b; Miller et al, 2014; Cardini and Longo, 2016). In relation to people with CRPS, it has been suggested that the lack of sensory input from the limb may contribute to the perpetuation of their BPD, as they are often reluctant to look at or touch their affected limb, choosing to position it in such a way that it is outside their field of view and even trying to avoid thinking about it (Lewis et al, 2007; Lewis and McCabe, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Bodily Sensory Inputs and Anomalous Bodily Experiences in Complex Regional Pain Syndrome: Evaluation of the Potential Effects of Sound Feedback

Tajadura‐Jiménez

Cohen

Bianchi-Berthouze

2017

Front. Hum. Neurosci.

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Neuroscientific studies have shown that human's mental body representations are not fixed but are constantly updated through sensory feedback, including sound feedback. This suggests potential new therapeutic sensory approaches for patients experiencing body-perception disturbances (BPD). BPD can occur in association with chronic pain, for example in Complex Regional Pain Syndrome (CRPS). BPD often impacts on emotional, social, and motor functioning. Here we present the results from a proof-of-principle pilot study investigating the potential value of using sound feedback for altering BPD and its related emotional state and motor behavior in those with CRPS. We build on previous findings that real-time alteration of the sounds produced by walking can alter healthy people's perception of their own body size, while also resulting in more active gait patterns and a more positive emotional state. In the present study we quantified the emotional state, BPD, pain levels and gait of twelve people with CRPS Type 1, who were exposed to real-time alteration of their walking sounds. Results confirm previous reports of the complexity of the BPD linked to CRPS, as participants could be classified into four BPD subgroups according to how they mentally visualize their body. Further, results suggest that sound feedback may affect the perceived size of the CRPS affected limb and the pain experienced, but that the effects may differ according to the type of BPD. Sound feedback affected CRPS descriptors and other bodily feelings and emotions including feelings of emotional dominance, limb detachment, position awareness, attention and negative feelings toward the limb. Gait also varied with sound feedback, affecting the foot contact time with the ground in a way consistent with experienced changes in body weight. Although, findings from this small pilot study should be interpreted with caution, they suggest potential applications for regenerating BDP and its related bodily feelings in a clinical setting for patients with chronic pain and BPD.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bodily Sensory Inputs and Anomalous Bodily Experiences in Complex Regional Pain Syndrome: Evaluation of the Potential Effects of Sound Feedback

Tajadura‐Jiménez

Cohen

Bianchi-Berthouze

2017

Front. Hum. Neurosci.

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“…Studies have found that visual-somatosensory conflict alters the perception (Bultitude, Juravle, & Spence, 2016; Folegatti, de Vignemont, Pavani, Rossetti, & Farnè, 2009) and neural processing of touch (Cardini & Longo, 2016). It is therefore possible that the recalibration found in Experiment 1 could be explained by illusion-related conflict between visual and somatosensory signals irrespective of tool use.…”

Section: Experiments 5: Sensory Conflictmentioning

confidence: 99%

Visual illusion of tool use recalibrates tactile perception

2017

Self Cite

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Brief use of a tool recalibrates multisensory representations of the user’s body, a phenomenon called tool embodiment. Despite two decades of research, little is known about its boundary conditions. It has been widely argued that embodiment requires active tool use, suggesting a critical role for somatosensory and motor feedback. The present study used a visual illusion to cast doubt on this view. We used a mirror-based setup to induce a visual experience of tool use with an arm that was in fact stationary. Following illusory tool use, tactile perception was recalibrated on this stationary arm, and with equal magnitude as physical use. Recalibration was not found following illusory passive tool holding, and could not be accounted for by sensory conflict or general interhemispheric plasticity. These results suggest visual tool-use signals play a critical role in driving tool embodiment.

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“…However, the findings by Schaefer and colleagues (2004) leave open the possibility that even low-level stages of processing in SI may be modulated by tool use. To foreshadow our results, we found significant evidence that tool use (but not hand use) modulates the amplitude of the mid-latency P100 component, an index of multisensory models of the body (Cardini and Longo 2016).…”

mentioning

confidence: 52%

“…The mid-latency P100 component was calculated as the mean amplitude at CP1, CP3, P1, and P3 between 70 and 110 ms post-shock. The P100 is the earliest component to index visual-tactile integration (Sambo) and reflects the maintenance of a multisensory model of the body (Cardini and Longo 2016). It has known generators in SII and PPC (Forss et al 1994;Barba et al 2004).…”

Section: Erp Analysesmentioning

confidence: 99%

Tool Use Modulates Somatosensory Cortical Processing in Humans

Miller

Longo

Saygın

2019

Journal of Cognitive Neuroscience

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Tool use leads to plastic changes in sensorimotor body representations underlying tactile perception. The neural correlates of this tool-induced plasticity in humans have not been adequately characterized. This study used ERPs to investigate the stage of sensory processing modulated by tool use. Somatosensory evoked potentials, elicited by median nerve stimulation, were recorded before and after two forms of object interaction: tool use and hand use. Compared with baseline, tool use—but not use of the hand alone—modulated the amplitude of the P100. The P100 is a mid-latency component that indexes the construction of multisensory models of the body and has generators in secondary somatosensory and posterior parietal cortices. These results mark one of the first demonstrations of the neural correlates of tool-induced plasticity in humans and suggest that tool use modulates relatively late stages of somatosensory processing outside primary somatosensory cortex. This finding is consistent with what has been observed in tool-trained monkeys and suggests that the mechanisms underlying tool-induced plasticity have been preserved across primate evolution.

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Congruency of body-related information induces somatosensory reorganization

Cited by 21 publications

References 71 publications

Bodily Sensory Inputs and Anomalous Bodily Experiences in Complex Regional Pain Syndrome: Evaluation of the Potential Effects of Sound Feedback

Bodily Sensory Inputs and Anomalous Bodily Experiences in Complex Regional Pain Syndrome: Evaluation of the Potential Effects of Sound Feedback

Visual illusion of tool use recalibrates tactile perception

Tool Use Modulates Somatosensory Cortical Processing in Humans

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