11 found
  1.  48
    Social contents in dreams: An empirical test of the Social Simulation Theory.Jarno Tuominen, Tuula Stenberg, Antti Revonsuo & Katja Valli - 2019 - Consciousness and Cognition 69 (C):133-145.
  2.  96
    The threat simulation theory of the evolutionary function of dreaming: Evidence from dreams of traumatized children.Katja Valli, Antti Revonsuo, Outi Pälkäs, Kamaran Hassan Ismail, Karzan Jalal Ali & Raija-Leena Punamäki - 2005 - Consciousness and Cognition 14 (1):188-218.
    The threat simulation theory of dreaming states that dream consciousness is essentially an ancient biological defence mechanism, evolutionarily selected for its capacity to repeatedly simulate threatening events. Threat simulation during dreaming rehearses the cognitive mechanisms required for efficient threat perception and threat avoidance, leading to increased probability of reproductive success during human evolution. One hypothesis drawn from TST is that real threatening events encountered by the individual during wakefulness should lead to an increased activation of the system, a threat simulation (...)
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  3.  34
    I know how you felt last night, or do I? Self- and external ratings of emotions in REM sleep dreams.Pilleriin Sikka, Katja Valli, Tiina Virta & Antti Revonsuo - 2014 - Consciousness and Cognition 25:51-66.
    We investigated whether inconsistencies in previous studies regarding emotional experiences in dreams derive from whether dream emotions are self-rated or externally evaluated. Seventeen subjects were monitored with polysomnography in the sleep laboratory and awakened from every rapid eye movement sleep stage 5 min after the onset of the stage. Upon awakening, participants gave an oral dream report and rated their dream emotions using the modified Differential Emotions Scale, whereas external judges rated the participants’ emotions expressed in the dream reports, using (...)
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  4. Dreaming and consciousness: Testing the threat simulation theory of the function of dreaming.Antti Revonsuo & Katja Valli - 2000 - PSYCHE: An Interdisciplinary Journal of Research On Consciousness 6.
    We tested the new threat simulation theory of the biological function of dreaming by analysing 592 dreams from 52 subjects with a rating scale developed for quantifying threatening events in dreams. The main predictions were that dreams contain more frequent and more severe threats than waking life does; that dream threats are realistic; and that they primarily threaten the Dream Self who tends to behave in a relevant defensive manner in response to them. These predictions were confirmed and the theory (...)
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  5.  52
    How to test the threat-simulation theory☆.Antti Revonsuo & Katja Valli - 2008 - Consciousness and Cognition 17 (4):1292-1296.
    Malcolm-Smith, Solms, Turnbull and Tredoux [Malcolm-Smith, S., Solms, M.,Turnbull, O., & Tredoux, C. . Threat in dreams: An adaptation? Consciousness and Cognition, 17, 1281–1291.] have made an attempt to test the Threat-Simulation Theory , a theory offering an evolutionary psychological explanation for the function of dreaming [Revonsuo, A. . The reinterpretation of dreams: An evolutionary hypothesis of the function of dreaming. Behavioral and Brain Sciences, 23, 877–901]. Malcolm-Smith et al. argue that empirical evidence from their own study as well as (...)
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  6.  35
    Dreams are more negative than real life: Implications for the function of dreaming.Katja Valli, Thea Strandholm, Lauri Sillanmäki & Antti Revonsuo - 2008 - Cognition and Emotion 22 (5):833-861.
    There is wide agreement among dream researchers that emotional memories are activated during dreaming and that emotions play an important role in the thematic development of the dream. In accordanc...
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  7. Recurrent dreams: Recurring threat simulations?Katja Valli & Antti Revonsuo - 2006 - Consciousness and Cognition 15 (2):464-469.
  8.  51
    Dreaming in the multilevel framework.Katja Valli - 2011 - Consciousness and Cognition 20 (4):1084-1090.
    Biological realism (Revonsuo, 2001, 2006) states that dreaming is a biological phenomenon and therefore explainable in naturalistic terms, similar to the explanation of other biological phenomena. In the biological sciences, the structure of explanations can be described with the help of a framework called 'multilevel explanation'. The multilevel model provides a context that assists to clarify what needs to be explained and how, and how to place different theories into the same model. Here, I will argue that the multilevel framework (...)
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  9.  8
    Testing the Empathy Theory of Dreaming: The Relationships Between Dream Sharing and Trait and State Empathy.Mark Blagrove, Sioned Hale, Julia Lockheart, Michelle Carr, Alex Jones & Katja Valli - 2019 - Frontiers in Psychology 10.
    In general, dreams are a novel but realistic simulation of waking social life, with a mixture of characters, motivations, scenarios, and positive and negative emotions. We propose that the sharing of dreams has an empathic effect on the dreamer and on significant others who hear and engage with the telling of the dream. Study 1 tests three correlations that are predicted by the theory of dream sharing and empathy: that trait empathy will be correlated with frequency of telling dreams to (...)
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  10.  10
    Viral simulations in dreams: The effect of the COVID-19 pandemic on threatening dream content in a Finnish sample of diary dreams.Ville Loukola, Jarno Tuominen, Santeri Kirsilä, Annimaaria Kyyhkynen, Maron Lahdenperä, Lilja Parkkali, Emilia Ranta, Eveliina Malinen, Sanni Vanhanen, Katariina Välimaa, Henri Olkoniemi, Antti Revonsuo & Katja Valli - 2024 - Consciousness and Cognition 119 (C):103651.
  11.  9
    The dynamics of affect across the wake-sleep cycle: From waking mind-wandering to night-time dreaming.Pilleriin Sikka, Katja Valli, Antti Revonsuo & Jarno Tuominen - 2021 - Consciousness and Cognition 94 (C):103189.