The Experts below are selected from a list of 1602 Experts worldwide ranked by ideXlab platform

Isabelle Arnulf - One of the best experts on this subject based on the ideXlab platform.

  • what does the Sleeping brain say syntax and semantics of Sleep Talking in healthy subjects and in parasomnia patients
    2017
    Co-Authors: Ginevra Uguccioni, Jeanlouis Golmard, Isabelle Arnulf, Etienne Baldayrou, Frederique Gayraud, Alain Devevey
    Abstract:

    Objectives Speech is a complex function in humans, but the linguistic characteristics of Sleep Talking are unknown. We analyzed Sleep-associated speech in adults, mostly (92%) during parasomnias. Methods The utterances recorded during night-time video-polysomnography were analyzed for number of words, propositions and speech episodes, frequency, gaps and pauses (denoting turn-taking in the conversation), lemmatization, verbosity, negative/imperative/interrogative tone, first/second person, politeness, and abuse. Results Two hundred thirty-two subjects (aged 49.5 ± 20 years old; 41% women; 129 with rapid eye movement [REM] Sleep behavior disorder and 87 with Sleepwalking/Sleep terrors, 15 healthy subjects, and 1 patient with Sleep apnea speaking in non-REM Sleep) uttered 883 speech episodes, containing 59% nonverbal utterance (mumbles, shouts, whispers, and laughs) and 3349 understandable words. The most frequent word was "No": negations represented 21.4% of clauses (more in non-REM Sleep). Interrogations were found in 26% of speech episodes (more in non-REM Sleep), and subordinate clauses were found in 12.9% of speech episodes. As many as 9.7% of clauses contained profanities (more in non-REM Sleep). Verbal abuse lasted longer in REM Sleep and was mostly directed toward insulting or condemning someone, whereas swearing predominated in non-REM Sleep. Men Sleep-talked more than women and used a higher proportion of profanities. Apparent turn-taking in the conversation respected the usual language gaps. Conclusions Sleep Talking parallels awake Talking for syntax, semantics, and turn-taking in conversation, suggesting that the Sleeping brain can function at a high level. Language during Sleep is mostly a familiar, tensed conversation with inaudible others, suggestive of conflicts.

  • Sleep-Related Declarative Memory Consolidation and Verbal Replay during Sleep Talking in Patients with REM Sleep Behavior Disorder
    2016
    Co-Authors: Ginevra Uguccioni, Olivier Pallanca, Jeanlouis Golmard, Pauline Dodet, Bastien Herlin, A Leu-semenescu, Isabelle Arnulf
    Abstract:

    Objective: To determine if Sleep talkers with REM Sleep behavior disorder (RBD) would utter during REM Sleep sentences learned before Sleep, and to evaluate their verbal memory consolidation during Sleep. Methods: Eighteen patients with RBD and 10 controls performed two verbal memory tasks (16 words from the Free and Cued Selective Reminding Test and a 220-263 word long modified Story Recall Test) in the evening, followed by nocturnal video-polysomnography and morning recall (night-time consolidation). In 9 patients with RBD, daytime consolidation (morning learning/recall, evening recall) was also evaluated with the modified Story Recall Test in a cross-over order. Two RBD patients with dementia were studied separately. Sleep Talking was recorded using video-polysomnography, and the utterances were compared to the studied texts by two external judges. Results: Sleep-related verbal memory consolidation was maintained in patients with RBD (+24±36 % words) as in controls (+9±18%, p=0.3). The two demented patients with RBD also exhibited excellent nighttime consolidation. The post-Sleep performance was unrelated to the Sleep measures (including continuity, stages, fragmentation and apnea-hypopnea index). Daytime consolidation (-9±19%) was worse than night-time consolidation (+29±45%, p=0.03) in the subgroup of 9 patients with RBD. Eleven patients with RBD spoke during REM Sleep and pronounced a median of 20 words, which represented 0.0003 % of Sleep with spoken language. A single patient uttered a sentence that wa

  • Sleep related declarative memory consolidation and verbal replay during Sleep Talking in patients with rem Sleep behavior disorder
    2013
    Co-Authors: Ginevra Uguccioni, Olivier Pallanca, Jeanlouis Golmard, Pauline Dodet, Bastien Herlin, Smaranda Leusemenescu, Isabelle Arnulf
    Abstract:

    Objective: To determine if Sleep talkers with REM Sleep behavior disorder (RBD) would utter during REM Sleep sentences learned before Sleep, and to evaluate their verbal memory consolidation during Sleep. Methods: Eighteen patients with RBD and 10 controls performed two verbal memory tasks (16 words from the Free and Cued Selective Reminding Test and a 220-263 word long modified Story Recall Test) in the evening, followed by nocturnal video-polysomnography and morning recall (night-time consolidation). In 9 patients with RBD, daytime consolidation (morning learning/recall, evening recall) was also evaluated with the modified Story Recall Test in a cross-over order. Two RBD patients with dementia were studied separately. Sleep Talking was recorded using videopolysomnography, and the utterances were compared to the studied texts by two external judges. Results: Sleep-related verbal memory consolidation was maintained in patients with RBD (+24±36% words) as in controls (+9±18%, p=0.3). The two demented patients with RBD also exhibited excellent nighttime consolidation. The post-Sleep performance was unrelated to the Sleep measures (including continuity, stages, fragmentation and apneahypopnea index). Daytime consolidation (-9±19%) was worse than night-time consolidation (+29±45%, p=0.03) in the subgroup of 9 patients with RBD. Eleven patients with RBD spoke during REM Sleep and pronounced a median of 20 words, which represented 0.0003% of Sleep with spoken language. A single patient uttered a sentence that was judged to be semantically (but not literally) related to the text learned before Sleep. Conclusion: Verbal declarative memory normally consolidates during Sleep in patients with RBD. The incorporation of learned material within REM Sleep-associated Sleep Talking in one patient (unbeknownst to himself) at the semantic level suggests a replay at a highly cognitive creative level.

Ginevra Uguccioni - One of the best experts on this subject based on the ideXlab platform.

  • what does the Sleeping brain say syntax and semantics of Sleep Talking in healthy subjects and in parasomnia patients
    2017
    Co-Authors: Ginevra Uguccioni, Jeanlouis Golmard, Isabelle Arnulf, Etienne Baldayrou, Frederique Gayraud, Alain Devevey
    Abstract:

    Objectives Speech is a complex function in humans, but the linguistic characteristics of Sleep Talking are unknown. We analyzed Sleep-associated speech in adults, mostly (92%) during parasomnias. Methods The utterances recorded during night-time video-polysomnography were analyzed for number of words, propositions and speech episodes, frequency, gaps and pauses (denoting turn-taking in the conversation), lemmatization, verbosity, negative/imperative/interrogative tone, first/second person, politeness, and abuse. Results Two hundred thirty-two subjects (aged 49.5 ± 20 years old; 41% women; 129 with rapid eye movement [REM] Sleep behavior disorder and 87 with Sleepwalking/Sleep terrors, 15 healthy subjects, and 1 patient with Sleep apnea speaking in non-REM Sleep) uttered 883 speech episodes, containing 59% nonverbal utterance (mumbles, shouts, whispers, and laughs) and 3349 understandable words. The most frequent word was "No": negations represented 21.4% of clauses (more in non-REM Sleep). Interrogations were found in 26% of speech episodes (more in non-REM Sleep), and subordinate clauses were found in 12.9% of speech episodes. As many as 9.7% of clauses contained profanities (more in non-REM Sleep). Verbal abuse lasted longer in REM Sleep and was mostly directed toward insulting or condemning someone, whereas swearing predominated in non-REM Sleep. Men Sleep-talked more than women and used a higher proportion of profanities. Apparent turn-taking in the conversation respected the usual language gaps. Conclusions Sleep Talking parallels awake Talking for syntax, semantics, and turn-taking in conversation, suggesting that the Sleeping brain can function at a high level. Language during Sleep is mostly a familiar, tensed conversation with inaudible others, suggestive of conflicts.

  • Sleep-Related Declarative Memory Consolidation and Verbal Replay during Sleep Talking in Patients with REM Sleep Behavior Disorder
    2016
    Co-Authors: Ginevra Uguccioni, Olivier Pallanca, Jeanlouis Golmard, Pauline Dodet, Bastien Herlin, A Leu-semenescu, Isabelle Arnulf
    Abstract:

    Objective: To determine if Sleep talkers with REM Sleep behavior disorder (RBD) would utter during REM Sleep sentences learned before Sleep, and to evaluate their verbal memory consolidation during Sleep. Methods: Eighteen patients with RBD and 10 controls performed two verbal memory tasks (16 words from the Free and Cued Selective Reminding Test and a 220-263 word long modified Story Recall Test) in the evening, followed by nocturnal video-polysomnography and morning recall (night-time consolidation). In 9 patients with RBD, daytime consolidation (morning learning/recall, evening recall) was also evaluated with the modified Story Recall Test in a cross-over order. Two RBD patients with dementia were studied separately. Sleep Talking was recorded using video-polysomnography, and the utterances were compared to the studied texts by two external judges. Results: Sleep-related verbal memory consolidation was maintained in patients with RBD (+24±36 % words) as in controls (+9±18%, p=0.3). The two demented patients with RBD also exhibited excellent nighttime consolidation. The post-Sleep performance was unrelated to the Sleep measures (including continuity, stages, fragmentation and apnea-hypopnea index). Daytime consolidation (-9±19%) was worse than night-time consolidation (+29±45%, p=0.03) in the subgroup of 9 patients with RBD. Eleven patients with RBD spoke during REM Sleep and pronounced a median of 20 words, which represented 0.0003 % of Sleep with spoken language. A single patient uttered a sentence that wa

  • Sleep related declarative memory consolidation and verbal replay during Sleep Talking in patients with rem Sleep behavior disorder
    2013
    Co-Authors: Ginevra Uguccioni, Olivier Pallanca, Jeanlouis Golmard, Pauline Dodet, Bastien Herlin, Smaranda Leusemenescu, Isabelle Arnulf
    Abstract:

    Objective: To determine if Sleep talkers with REM Sleep behavior disorder (RBD) would utter during REM Sleep sentences learned before Sleep, and to evaluate their verbal memory consolidation during Sleep. Methods: Eighteen patients with RBD and 10 controls performed two verbal memory tasks (16 words from the Free and Cued Selective Reminding Test and a 220-263 word long modified Story Recall Test) in the evening, followed by nocturnal video-polysomnography and morning recall (night-time consolidation). In 9 patients with RBD, daytime consolidation (morning learning/recall, evening recall) was also evaluated with the modified Story Recall Test in a cross-over order. Two RBD patients with dementia were studied separately. Sleep Talking was recorded using videopolysomnography, and the utterances were compared to the studied texts by two external judges. Results: Sleep-related verbal memory consolidation was maintained in patients with RBD (+24±36% words) as in controls (+9±18%, p=0.3). The two demented patients with RBD also exhibited excellent nighttime consolidation. The post-Sleep performance was unrelated to the Sleep measures (including continuity, stages, fragmentation and apneahypopnea index). Daytime consolidation (-9±19%) was worse than night-time consolidation (+29±45%, p=0.03) in the subgroup of 9 patients with RBD. Eleven patients with RBD spoke during REM Sleep and pronounced a median of 20 words, which represented 0.0003% of Sleep with spoken language. A single patient uttered a sentence that was judged to be semantically (but not literally) related to the text learned before Sleep. Conclusion: Verbal declarative memory normally consolidates during Sleep in patients with RBD. The incorporation of learned material within REM Sleep-associated Sleep Talking in one patient (unbeknownst to himself) at the semantic level suggests a replay at a highly cognitive creative level.

Guy D. Leschziner - One of the best experts on this subject based on the ideXlab platform.

  • bed partner gas lighting as a cause of fictitious Sleep Talking
    2015
    Co-Authors: James Bashford, Guy D. Leschziner
    Abstract:

    A case report highlighting a rare and striking, but perhaps under-recognized, cause of reported Sleep-Talking to a specialist Sleep clinic, involving “gas-lighting” by the bed partner.Citation:Bash...

  • BED PARTNER ‘GAS-LIGHTING’ AS A CAUSE OF FICTITIOUS Sleep-Talking
    2015
    Co-Authors: James Bashford, Guy D. Leschziner
    Abstract:

    We report a rare and striking, but under-recognised, cause of reported Sleep-Talking to a specialist Sleep clinic. A 67 year-old right-handed bus driver was referred with one year9s history of Sleep-Talking reported by his bed-partner of eighteen months. The somniloquy occurred on most nights, beginning within ten minutes of Sleep and lasting several minutes to hours. The speech was elaborate relating to ex-girlfriends, often describing explicit sexual activities. Nocturnal polysomnography demonstrated clinically significant obstructive Sleep apnoea and the working diagnosis was that obstructive events were triggering a non-REM parasomnia. On review two months later his partner reported on-going nocturnal speech. However, the patient9s mounting curiosity had led to the implementation of surreptitious night-time electronic recordings. It soon became apparent that his partner9s account was fictitious. Full psychiatric evaluation of his partner excluded morbid jealousy and psychotic illness. We highlight the psychological phenomenon of gas-lighting, coined from the 1938 play Gas Light, in which a husband systematically torments his unsuspecting wife in order to provoke admission to a mental health unit. This phenomenon should be considered amongst the differential diagnoses of unusual presentations to Sleep clinic, especially pertinent in this setting as the clinical assessment relies heavily on the bed-partner account.

Jeanlouis Golmard - One of the best experts on this subject based on the ideXlab platform.

  • what does the Sleeping brain say syntax and semantics of Sleep Talking in healthy subjects and in parasomnia patients
    2017
    Co-Authors: Ginevra Uguccioni, Jeanlouis Golmard, Isabelle Arnulf, Etienne Baldayrou, Frederique Gayraud, Alain Devevey
    Abstract:

    Objectives Speech is a complex function in humans, but the linguistic characteristics of Sleep Talking are unknown. We analyzed Sleep-associated speech in adults, mostly (92%) during parasomnias. Methods The utterances recorded during night-time video-polysomnography were analyzed for number of words, propositions and speech episodes, frequency, gaps and pauses (denoting turn-taking in the conversation), lemmatization, verbosity, negative/imperative/interrogative tone, first/second person, politeness, and abuse. Results Two hundred thirty-two subjects (aged 49.5 ± 20 years old; 41% women; 129 with rapid eye movement [REM] Sleep behavior disorder and 87 with Sleepwalking/Sleep terrors, 15 healthy subjects, and 1 patient with Sleep apnea speaking in non-REM Sleep) uttered 883 speech episodes, containing 59% nonverbal utterance (mumbles, shouts, whispers, and laughs) and 3349 understandable words. The most frequent word was "No": negations represented 21.4% of clauses (more in non-REM Sleep). Interrogations were found in 26% of speech episodes (more in non-REM Sleep), and subordinate clauses were found in 12.9% of speech episodes. As many as 9.7% of clauses contained profanities (more in non-REM Sleep). Verbal abuse lasted longer in REM Sleep and was mostly directed toward insulting or condemning someone, whereas swearing predominated in non-REM Sleep. Men Sleep-talked more than women and used a higher proportion of profanities. Apparent turn-taking in the conversation respected the usual language gaps. Conclusions Sleep Talking parallels awake Talking for syntax, semantics, and turn-taking in conversation, suggesting that the Sleeping brain can function at a high level. Language during Sleep is mostly a familiar, tensed conversation with inaudible others, suggestive of conflicts.

  • Sleep-Related Declarative Memory Consolidation and Verbal Replay during Sleep Talking in Patients with REM Sleep Behavior Disorder
    2016
    Co-Authors: Ginevra Uguccioni, Olivier Pallanca, Jeanlouis Golmard, Pauline Dodet, Bastien Herlin, A Leu-semenescu, Isabelle Arnulf
    Abstract:

    Objective: To determine if Sleep talkers with REM Sleep behavior disorder (RBD) would utter during REM Sleep sentences learned before Sleep, and to evaluate their verbal memory consolidation during Sleep. Methods: Eighteen patients with RBD and 10 controls performed two verbal memory tasks (16 words from the Free and Cued Selective Reminding Test and a 220-263 word long modified Story Recall Test) in the evening, followed by nocturnal video-polysomnography and morning recall (night-time consolidation). In 9 patients with RBD, daytime consolidation (morning learning/recall, evening recall) was also evaluated with the modified Story Recall Test in a cross-over order. Two RBD patients with dementia were studied separately. Sleep Talking was recorded using video-polysomnography, and the utterances were compared to the studied texts by two external judges. Results: Sleep-related verbal memory consolidation was maintained in patients with RBD (+24±36 % words) as in controls (+9±18%, p=0.3). The two demented patients with RBD also exhibited excellent nighttime consolidation. The post-Sleep performance was unrelated to the Sleep measures (including continuity, stages, fragmentation and apnea-hypopnea index). Daytime consolidation (-9±19%) was worse than night-time consolidation (+29±45%, p=0.03) in the subgroup of 9 patients with RBD. Eleven patients with RBD spoke during REM Sleep and pronounced a median of 20 words, which represented 0.0003 % of Sleep with spoken language. A single patient uttered a sentence that wa

  • Sleep related declarative memory consolidation and verbal replay during Sleep Talking in patients with rem Sleep behavior disorder
    2013
    Co-Authors: Ginevra Uguccioni, Olivier Pallanca, Jeanlouis Golmard, Pauline Dodet, Bastien Herlin, Smaranda Leusemenescu, Isabelle Arnulf
    Abstract:

    Objective: To determine if Sleep talkers with REM Sleep behavior disorder (RBD) would utter during REM Sleep sentences learned before Sleep, and to evaluate their verbal memory consolidation during Sleep. Methods: Eighteen patients with RBD and 10 controls performed two verbal memory tasks (16 words from the Free and Cued Selective Reminding Test and a 220-263 word long modified Story Recall Test) in the evening, followed by nocturnal video-polysomnography and morning recall (night-time consolidation). In 9 patients with RBD, daytime consolidation (morning learning/recall, evening recall) was also evaluated with the modified Story Recall Test in a cross-over order. Two RBD patients with dementia were studied separately. Sleep Talking was recorded using videopolysomnography, and the utterances were compared to the studied texts by two external judges. Results: Sleep-related verbal memory consolidation was maintained in patients with RBD (+24±36% words) as in controls (+9±18%, p=0.3). The two demented patients with RBD also exhibited excellent nighttime consolidation. The post-Sleep performance was unrelated to the Sleep measures (including continuity, stages, fragmentation and apneahypopnea index). Daytime consolidation (-9±19%) was worse than night-time consolidation (+29±45%, p=0.03) in the subgroup of 9 patients with RBD. Eleven patients with RBD spoke during REM Sleep and pronounced a median of 20 words, which represented 0.0003% of Sleep with spoken language. A single patient uttered a sentence that was judged to be semantically (but not literally) related to the text learned before Sleep. Conclusion: Verbal declarative memory normally consolidates during Sleep in patients with RBD. The incorporation of learned material within REM Sleep-associated Sleep Talking in one patient (unbeknownst to himself) at the semantic level suggests a replay at a highly cognitive creative level.

James Bashford - One of the best experts on this subject based on the ideXlab platform.

  • bed partner gas lighting as a cause of fictitious Sleep Talking
    2015
    Co-Authors: James Bashford, Guy D. Leschziner
    Abstract:

    A case report highlighting a rare and striking, but perhaps under-recognized, cause of reported Sleep-Talking to a specialist Sleep clinic, involving “gas-lighting” by the bed partner.Citation:Bash...

  • BED PARTNER ‘GAS-LIGHTING’ AS A CAUSE OF FICTITIOUS Sleep-Talking
    2015
    Co-Authors: James Bashford, Guy D. Leschziner
    Abstract:

    We report a rare and striking, but under-recognised, cause of reported Sleep-Talking to a specialist Sleep clinic. A 67 year-old right-handed bus driver was referred with one year9s history of Sleep-Talking reported by his bed-partner of eighteen months. The somniloquy occurred on most nights, beginning within ten minutes of Sleep and lasting several minutes to hours. The speech was elaborate relating to ex-girlfriends, often describing explicit sexual activities. Nocturnal polysomnography demonstrated clinically significant obstructive Sleep apnoea and the working diagnosis was that obstructive events were triggering a non-REM parasomnia. On review two months later his partner reported on-going nocturnal speech. However, the patient9s mounting curiosity had led to the implementation of surreptitious night-time electronic recordings. It soon became apparent that his partner9s account was fictitious. Full psychiatric evaluation of his partner excluded morbid jealousy and psychotic illness. We highlight the psychological phenomenon of gas-lighting, coined from the 1938 play Gas Light, in which a husband systematically torments his unsuspecting wife in order to provoke admission to a mental health unit. This phenomenon should be considered amongst the differential diagnoses of unusual presentations to Sleep clinic, especially pertinent in this setting as the clinical assessment relies heavily on the bed-partner account.