{"title":"The Gray Zone of Consciousness: Cognitive Motor Dissociation.","authors":"Daniel Kondziella","doi":"10.1007/s11910-025-01438-2","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose of review: </strong>Covert consciousness, including cognitive motor dissociation (CMD), occurs in clinically unresponsive patients with brain injury who can willfully modulate their brain activity to comply with motor imagery commands as revealed by functional magnetic resonance imaging, EEG or other technologies. In 2024, the Curing Coma Campaign conducted a gap analysis of the field of covert consciousness and CMD. This article discusses the achievements that have been made in the field since then.</p><p><strong>Recent findings: </strong>Three major recent achievements include epidemiological data that CMD occurs in up to 25% of unresponsive brain injury patients, the development of convenient tools for detecting CMD at the bedside, and CMD as a biomarker of cerebral reserves that may possibly be exploited pharmacologically for prognostication and rehabilitation. Although many questions remain, recent findings have paved the way for the implementation of CMD screening in clinical routine, also in resource-poor settings, for better prognostication after brain injury and possibly for therapeutic purposes.</p>","PeriodicalId":10831,"journal":{"name":"Current Neurology and Neuroscience Reports","volume":"25 1","pages":"49"},"PeriodicalIF":7.4000,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Neurology and Neuroscience Reports","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s11910-025-01438-2","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose of review: Covert consciousness, including cognitive motor dissociation (CMD), occurs in clinically unresponsive patients with brain injury who can willfully modulate their brain activity to comply with motor imagery commands as revealed by functional magnetic resonance imaging, EEG or other technologies. In 2024, the Curing Coma Campaign conducted a gap analysis of the field of covert consciousness and CMD. This article discusses the achievements that have been made in the field since then.
Recent findings: Three major recent achievements include epidemiological data that CMD occurs in up to 25% of unresponsive brain injury patients, the development of convenient tools for detecting CMD at the bedside, and CMD as a biomarker of cerebral reserves that may possibly be exploited pharmacologically for prognostication and rehabilitation. Although many questions remain, recent findings have paved the way for the implementation of CMD screening in clinical routine, also in resource-poor settings, for better prognostication after brain injury and possibly for therapeutic purposes.
期刊介绍:
Current Neurology and Neuroscience Reports provides in-depth review articles contributed by international experts on the most significant developments in the field. By presenting clear, insightful, balanced reviews that emphasize recently published papers of major importance, the journal elucidates current and emerging approaches to the diagnosis, treatment, management, and prevention of neurological disease and disorders.
Presents the views of experts on current advances in neurology and neuroscience
Gathers and synthesizes important recent papers on the topic
Includes reviews of recently published clinical trials, valuable web sites, and commentaries from well-known figures in the field.