Impact of Gentle Touch Stimulation Combined with Advanced Sensory Stimulation in Patients in a Minimally Conscious State: A Quasi-Randomized Clinical Trial

Touch, particularly affective touch mediated by C-tactile fibers, plays a key role in emotional regulation and therapeutic interventions. However, tactile stimulation is underutilized in sensory stimulation (SS) protocols for brain injury patients, despite its potential to enhance consciousness and...

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Main Authors: Mirjam Bonanno, Antonio Gangemi, Rosa Angela Fabio, Marco Tramontano, Maria Grazia Maggio, Federica Impellizzeri, Alfredo Manuli, Daniele Tripoli, Angelo Quartarone, Rosaria De Luca, Rocco Salvatore Calabrò
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Language:English
Published: MDPI AG 2025-02-01
Series:Life
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Online Access:https://www.mdpi.com/2075-1729/15/2/280
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author Mirjam Bonanno
Antonio Gangemi
Rosa Angela Fabio
Marco Tramontano
Maria Grazia Maggio
Federica Impellizzeri
Alfredo Manuli
Daniele Tripoli
Angelo Quartarone
Rosaria De Luca
Rocco Salvatore Calabrò
author_facet Mirjam Bonanno
Antonio Gangemi
Rosa Angela Fabio
Marco Tramontano
Maria Grazia Maggio
Federica Impellizzeri
Alfredo Manuli
Daniele Tripoli
Angelo Quartarone
Rosaria De Luca
Rocco Salvatore Calabrò
author_sort Mirjam Bonanno
collection DOAJ
description Touch, particularly affective touch mediated by C-tactile fibers, plays a key role in emotional regulation and therapeutic interventions. However, tactile stimulation is underutilized in sensory stimulation (SS) protocols for brain injury patients, despite its potential to enhance consciousness and promote recovery through neural and autonomic regulation. Tools like the Neurowave enable advanced multisensory stimulation, including audio-visual and emotional inputs, but lack tactile components. Integrating gentle touch stimulation with such systems could further enhance neuroplasticity, improve heart rate regulation, and support recovery in patients with disorders of consciousness. In this study, twenty patients affected by minimally conscious state (MCS) were divided into two groups: an experimental group (EG n.10) and a control group (CG n.10). Both groups underwent standard neurorehabilitation, including conventional physiotherapy and speech therapy. The key difference was in the type of sensory stimulation. The EG received advanced sensory stimulation with the Neurowave system (which provides audio-visual and emotional sensory stimulation) in addition to gentle touch stimulation. The CG received conventional sensory stimulation without the Neurowave and neutral gentle touch stimulation. Each patient was evaluated by a multidisciplinary rehabilitation team, using clinical scales such as coma recovery scale—revised (CSR-R), level of cognitive functioning (LCF), before (T0) and after (T1) treatment. Additionally, heart rate (HR) and neurophysiological outcomes (P300) were also recorded for both groups (EG and CG). The MANOVA model revealed a significant interaction effect between group and phase on P300 latency (F (1, 18) = 10.23, <i>p</i> < 0.001, η<sup>2</sup> = 0.09), indicating that the intervention involving gentle touch stimulation significantly influenced the P300 latency in the EG. The findings of this study contribute to our understanding of the therapeutic potential of emotional multisensory stimulation, which also includes gentle touch stimulation, in MCS rehabilitation. By demonstrating significant effects on both neurophysiological and functional measures, our results support the integration of tactile interventions into comprehensive neurorehabilitation programs.
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spelling doaj-art-0d3a5ff99b7d4eaabb0e1dcff799f5312025-08-20T02:44:50ZengMDPI AGLife2075-17292025-02-0115228010.3390/life15020280Impact of Gentle Touch Stimulation Combined with Advanced Sensory Stimulation in Patients in a Minimally Conscious State: A Quasi-Randomized Clinical TrialMirjam Bonanno0Antonio Gangemi1Rosa Angela Fabio2Marco Tramontano3Maria Grazia Maggio4Federica Impellizzeri5Alfredo Manuli6Daniele Tripoli7Angelo Quartarone8Rosaria De Luca9Rocco Salvatore Calabrò10IRCCS Centro Neurolesi Bonino-Pulejo, Via Palermo, Cda Casazza, SS 113, 98124 Messina, ItalyIRCCS Centro Neurolesi Bonino-Pulejo, Via Palermo, Cda Casazza, SS 113, 98124 Messina, ItalyDepartment of Cognitive Science, University of Messina, 98122 Messina, ItalyDepartment of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater University of Bologna, 40138 Bologna, ItalyIRCCS Centro Neurolesi Bonino-Pulejo, Via Palermo, Cda Casazza, SS 113, 98124 Messina, ItalyIRCCS Centro Neurolesi Bonino-Pulejo, Via Palermo, Cda Casazza, SS 113, 98124 Messina, ItalyA.O.U. Policlinico “G. Martino”, Via Consolare Valeria, 98124 Messina, ItalyA.O. Papardo, 98158 Messina, ItalyIRCCS Centro Neurolesi Bonino-Pulejo, Via Palermo, Cda Casazza, SS 113, 98124 Messina, ItalyIRCCS Centro Neurolesi Bonino-Pulejo, Via Palermo, Cda Casazza, SS 113, 98124 Messina, ItalyIRCCS Centro Neurolesi Bonino-Pulejo, Via Palermo, Cda Casazza, SS 113, 98124 Messina, ItalyTouch, particularly affective touch mediated by C-tactile fibers, plays a key role in emotional regulation and therapeutic interventions. However, tactile stimulation is underutilized in sensory stimulation (SS) protocols for brain injury patients, despite its potential to enhance consciousness and promote recovery through neural and autonomic regulation. Tools like the Neurowave enable advanced multisensory stimulation, including audio-visual and emotional inputs, but lack tactile components. Integrating gentle touch stimulation with such systems could further enhance neuroplasticity, improve heart rate regulation, and support recovery in patients with disorders of consciousness. In this study, twenty patients affected by minimally conscious state (MCS) were divided into two groups: an experimental group (EG n.10) and a control group (CG n.10). Both groups underwent standard neurorehabilitation, including conventional physiotherapy and speech therapy. The key difference was in the type of sensory stimulation. The EG received advanced sensory stimulation with the Neurowave system (which provides audio-visual and emotional sensory stimulation) in addition to gentle touch stimulation. The CG received conventional sensory stimulation without the Neurowave and neutral gentle touch stimulation. Each patient was evaluated by a multidisciplinary rehabilitation team, using clinical scales such as coma recovery scale—revised (CSR-R), level of cognitive functioning (LCF), before (T0) and after (T1) treatment. Additionally, heart rate (HR) and neurophysiological outcomes (P300) were also recorded for both groups (EG and CG). The MANOVA model revealed a significant interaction effect between group and phase on P300 latency (F (1, 18) = 10.23, <i>p</i> < 0.001, η<sup>2</sup> = 0.09), indicating that the intervention involving gentle touch stimulation significantly influenced the P300 latency in the EG. The findings of this study contribute to our understanding of the therapeutic potential of emotional multisensory stimulation, which also includes gentle touch stimulation, in MCS rehabilitation. By demonstrating significant effects on both neurophysiological and functional measures, our results support the integration of tactile interventions into comprehensive neurorehabilitation programs.https://www.mdpi.com/2075-1729/15/2/280neurorehabilitationminimally conscious stategentle touchtactile stimulationmultisensory stimulationNeurowave
spellingShingle Mirjam Bonanno
Antonio Gangemi
Rosa Angela Fabio
Marco Tramontano
Maria Grazia Maggio
Federica Impellizzeri
Alfredo Manuli
Daniele Tripoli
Angelo Quartarone
Rosaria De Luca
Rocco Salvatore Calabrò
Impact of Gentle Touch Stimulation Combined with Advanced Sensory Stimulation in Patients in a Minimally Conscious State: A Quasi-Randomized Clinical Trial
Life
neurorehabilitation
minimally conscious state
gentle touch
tactile stimulation
multisensory stimulation
Neurowave
title Impact of Gentle Touch Stimulation Combined with Advanced Sensory Stimulation in Patients in a Minimally Conscious State: A Quasi-Randomized Clinical Trial
title_full Impact of Gentle Touch Stimulation Combined with Advanced Sensory Stimulation in Patients in a Minimally Conscious State: A Quasi-Randomized Clinical Trial
title_fullStr Impact of Gentle Touch Stimulation Combined with Advanced Sensory Stimulation in Patients in a Minimally Conscious State: A Quasi-Randomized Clinical Trial
title_full_unstemmed Impact of Gentle Touch Stimulation Combined with Advanced Sensory Stimulation in Patients in a Minimally Conscious State: A Quasi-Randomized Clinical Trial
title_short Impact of Gentle Touch Stimulation Combined with Advanced Sensory Stimulation in Patients in a Minimally Conscious State: A Quasi-Randomized Clinical Trial
title_sort impact of gentle touch stimulation combined with advanced sensory stimulation in patients in a minimally conscious state a quasi randomized clinical trial
topic neurorehabilitation
minimally conscious state
gentle touch
tactile stimulation
multisensory stimulation
Neurowave
url https://www.mdpi.com/2075-1729/15/2/280
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