Vanhaudenhuyse Audrey, Castillo Marie-Carmen, Martial Charlotte, Annen Jitka, Bicego Aminata, Rousseaux Floriane, Sanz Leandro R D, Sombrun Corine, Bioy Antoine, Gosseries Olivia
Conscious Care Lab, GIGA Consciousness, University of Liège, Domaine Universitaire du Sart-Tilman, B34, Liège 4000, Belgium.
Algology Interdisciplinary Center, University Hospital of Liège, Domaine universitaire du Sart-Tilman B35, Liège 4000, Belgium.
Neurosci Conscious. 2024 Nov 22;2024(1):niae036. doi: 10.1093/nc/niae036. eCollection 2024.
Auto-induced cognitive trance (AICT) is a modified state of consciousness derived from shamanic tradition that can be practised by individuals after specific training. The aim of this work was to characterize the phenomenological experiences of AICT, using text mining analysis. Free recalls of subjective experiences were audio-recorded in 27 participants after five pseudo-randomized experimental sessions: ordinary conscious resting state, with auditory stimulation and with an imaginary mental task, as well as during AICT with and without auditory stimulation. Recordings were transcribed, normalized total word counts were calculated for each condition, and analyses of content were performed using IRaMuTeQ software. Results showed that the length of the participants' reports was higher for AICT compared to the other conditions, and that the content could be categorized into four classes of discourse: AICT memory, AICT, ordinary conscious states, and AICT with and without stimulation. AICT was also characterized by specific content compared to rest, auditory stimulation, and imagination conditions. Content analysis of the narrative revealed nine categories encompassing the presence of nature, people, animals, positive and negative features, sensory perceptions, body modifications, metacognition, and difficulty of describing thoughts. Among these categories, AICT is specifically characterized by reports related to the presence of nature, animals, body modifications, as well as the difficulty of describing thoughts. These results suggest that a richer phenomenology was reported during AICT, compared to the other conditions, and that AICT constitutes a class of discourse on its own, with a clear dissociation from the other conditions.
自我诱导认知恍惚（AICT）是一种源自萨满教传统的意识改变状态，经过特定训练的个体可以进入这种状态。本研究的目的是通过文本挖掘分析来描述AICT的现象学体验。在五个伪随机实验环节后，对27名参与者主观体验的自由回忆进行了录音：普通意识休息状态、有听觉刺激和有想象心理任务的状态，以及有和没有听觉刺激的AICT状态。对录音进行了转录，计算了每种状态下的标准化总词数，并使用IRaMuTeQ软件进行了内容分析。结果表明，与其他状态相比，参与者在AICT状态下的报告长度更长，且内容可分为四类话语：AICT记忆、AICT、普通意识状态以及有和没有刺激的AICT。与休息、听觉刺激和想象状态相比，AICT也有其特定的内容特征。对叙述的内容分析揭示了九个类别，包括自然、人物、动物的呈现，积极和消极特征、感官感知、身体变化、元认知以及描述思想的困难。在这些类别中，AICT的具体特征是与自然、动物的呈现、身体变化以及描述思想的困难相关的报告。这些结果表明，与其他状态相比，AICT期间报告的现象学更丰富，且AICT本身构成了一类话语，与其他状态有明显的区别。
