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Sökning: L773:0149 7634

  • Resultat 1-10 av 139
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  • Li, Shu Chen, et al. (författare)
  • Integrative neurocomputational perspectives on cognitive aging, neuromodulation, and representation
  • 2002
  • Ingår i: Neuroscience and Biobehavioral Reviews. - 0149-7634. ; 26:7, s. 795-808
  • Tidskriftsartikel (refereegranskat)abstract
    • Besides neuroanatomical changes, neuromodulatory mechanisms are also compromised during aging. Neural network models are suitable tools for exploring the relatively broad and homogenous neuromodulatory influences on cortical function. Computational approaches for understanding neuromodulation of the dynamic properties of cortical function and recent neurocomputational theories relating different aspects of cognitive aging with declines in neuromodulation are reviewed. Considered within an integrative cross-level neurocomputational framework, aging-related decline in dopaminergic neuromodulation reduces the fidelity of neural information and gives rise to less distinctive neural pattern representations that may underlie various facets of aging cognitive and, possibly also, sensorimotor phenomena.
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  • Nilsson, LG, et al. (författare)
  • Genetic variation in memory functioning
  • 2002
  • Ingår i: Neuroscience and biobehavioral reviews. - 0149-7634. ; 26:7, s. 841-848
  • Tidskriftsartikel (refereegranskat)
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  • Alimoradi, Z., et al. (författare)
  • Is alexithymia associated with sleep problems? : A systematic review and meta-analysis
  • 2022
  • Ingår i: Neuroscience and Biobehavioral Reviews. - : Elsevier. - 0149-7634 .- 1873-7528. ; 133
  • Tidskriftsartikel (refereegranskat)abstract
    • Alexithymia, a difficulty identifying and expressing emotions experienced by oneself or others, measurably harms quality of sleep. Research has observed the association between alexithymia and sleep problems; however, the cumulative effect of this association is still unknown. Therefore, this systematic review and meta-analysis was conducted to present scientific evidence regarding the relationship between alexithymia and sleep quality. Adhering to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guideline, and using relevant keywords, we searched six databases: Scopus, PubMed Central, ProQuest, ISI Web of Knowledge, EMBASE, and Science Direct. We selected observational studies on the association between alexithymia and sleep. We conducted meta-analysis using a random-effect model to calculate the effect size (ES) with Fisher's z transformation. Eligible studies (N = 26) in 24 papers included 7546 participants from 12 countries. The entire ES for the association between alexithymia and sleep was 0.44 (95 % CI: 0.31, 0.56). Additionally, patient populations had a larger ES (ES = 0.55; 95 % CI: 0.30, 0.79) than healthy populations (ES = 0.30; 95 % CI: 0.20, 0.41). The results of the present systematic review and meta-analysis revealed a significant association between alexithymia and sleep problems, especially among people with any medical condition.
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