The dreaming brain/mind, consciousness and psychosis

Limosani, Ivan; D’Agostino, Armando; Manzone, Maria Laura; Scarone, Silvio

doi:10.1016/j.concog.2010.11.014

Cited by 21 publications

(27 citation statements)

References 55 publications

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“…Similarities between these two states indicate that a dreaming brain during REM sleep could be a useful experimental model for schizophrenia [6,16,29,31]. While dreaming may be a condition advantageous to a better understanding of schizophrenia, it is important to remember that these states are not identical.…”

Section: Discussionmentioning

confidence: 99%

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What links schizophrenia and dreaming? Common phenomenological and neurobiological features of schizophrenia and REM sleep.

Skrzypińska¹,

Szmigielska²

2013

Arch Psych Psych

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SummaryAim. The aim of this theoretical study is to present common phenomenological and neurobiological features of schizophrenia and REM sleep. Results. A review of professional literature was conducted in order to synthesize current findings about associations between schizophrenia and REM sleep. Many researches reveal that both states share some common phenomenological and neurobiological features. Autism, lack of insight and a loss of autonomy in relation to mental content are just some of the characteristics that occur on a phenomenological level in both dreams during REM sleep (lucid dreaming excluded) and schizophrenia. Data from experimental conditions revealed that the waking mentation of patients suffering from schizophrenia has a similar degree of formal cognitive bizarreness as dream narratives obtained from both non-clinical and clinical populations. On the other hand, some common neurobiological features of the REM sleep stage and schizophrenia are: lack of central inhibitory processes, intracerebral disconnections, dysfunction of the dorsolateral prefrontal cortex or nucleus accumbens and disturbed responsiveness. Moreover, there is similar activation of dopamine, acetylcholine, noradrenaline, serotonin and glutamate in both states. Conclusions. Common phenomenological and neurobiological characteristics of these two states suggest that data about REM sleep could help introduce a useful experimental model of schizophrenia. schizophrenia / reM sleep / dreaming

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Section: Discussionmentioning

confidence: 99%

“…withdrawal from the external world) [16]. Although the dreamer experiences a dream as any perceptual phenomenon, it is in fact a hallucination [8].…”

Section: Common Phenomenological Features Of Schizophrenia and Dreamingmentioning

confidence: 99%

What links schizophrenia and dreaming? Common phenomenological and neurobiological features of schizophrenia and REM sleep.

Skrzypińska¹,

Szmigielska²

2013

Arch Psych Psych

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“…It is well established that sleep deprivation reliably produces compensatory attempts to enter REM throughout the day resulting in REM microsleeps as well as reports of dreamy states and dissociative symptoms. ( Limosani et al, 2011 ; Palagini and Rosenlicht, 2011 ) The role of REM-irruptions into waking consciousness is well-recognized in narcolepsy where the associated experience is the production of hypnagogic hallucinations. Mahowald et al (2011) and van der Kloet et al (2012) review a range of evidence which demonstrates that dissociative symptoms such as absorption, derealization, depersonalization, and other symptoms associated with a range of psychiatric disturbances originate from sleep.…”

Section: Rem and Nrem Sleep Statesmentioning

confidence: 99%

Dreams as a source of supernatural agent concepts

McNamara

Bulkeley

2015

Front. Psychol.

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We present a theory of the creativity of dreams as well as psychopathology of religious delusions with respect to production of fundamental forms of religious cognition—specifically supernatural agent (SA) cognitions. We suggest that dream cognitions are particularly efficient at producing highly memorable and impactful experiences with SAs because dreams involve three processes that are prerequisites for the generation of god concepts: (1) mental simulations of alternative realities, (2) theory of mind attributions to the extra-natural dream characters and divine beings, and (3) attribution of ultimate value (exemplified by ‘good spirit beings’), and dis-value (exemplified by demonic monsters) to the supernatural dream characters. Because prefrontal cortex is deactivated during rapid eye movements (REM) sleep agentic impulses and internally generated ideas are not reliably attributed to Self or dreamer. Instead an exaggerated degree of agency is attributed to these supernatural dream characters who are then embedded in stories in dreams and in myths of waking life which explain their supernatural abilities. These dream-based SAs are salient characters that are processed in sleep-related memory systems according to rules of Lleweelyn’s ancient art of memory model and therefore more easily remembered and reflected upon during waking life. When REM sleep intrudes into waking consciousness, as is the case with some forms of schizophrenia, religious delusions are more likely to emerge.

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“…最近一项研究显示, 比较嗜睡症人群和正常人群有助于对清醒梦的了解 [91] . 另外由于共同具有复杂性、多变性和意识内容的离奇性, 精神疾病与做梦可能存在很多重叠 [92] , 也获得了一些神经影像学研究的支持, 如有研究发现在精神病患者的大脑活动呈现了边缘系统过度激活而背外侧前额叶皮层活动降低的模式 [40] , 这个模式与前文提到的做梦时的大脑活动是相似的.…”

Section: 在梦的研究中对特殊群体的研究往往能带来unclassified

The bizarreness and reality of dreams

Guo¹,

Chen²

2017

Chin. Sci. Bull.

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The dreaming brain/mind, consciousness and psychosis

Cited by 21 publications

References 55 publications

What links schizophrenia and dreaming? Common phenomenological and neurobiological features of schizophrenia and REM sleep.

What links schizophrenia and dreaming? Common phenomenological and neurobiological features of schizophrenia and REM sleep.

Dreams as a source of supernatural agent concepts

The bizarreness and reality of dreams

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