Blar i Bergen Open Research Archive på forfatter "Helle, Siri"

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    • The cannabis pathway to non-affective psychosis may reflect less neurobiological vulnerability 

      Løberg, Else-Marie; Helle, Siri; Nygård, Merethe; Berle, Jan Øystein; Kroken, Rune; Johnsen, Erik (Peer reviewed; Journal article, 2014-11-18)
      There is a high prevalence of cannabis use reported in non-affective psychosis. Early prospective longitudinal studies conclude that cannabis use is a risk factor for psychosis, and neurochemical studies on cannabis have ...

    • Cognitive changes in patients with acute phase psychosis - Effects of illicit drug use 

      Helle, Siri; Gjestad, Rolf; Johnsen, Erik; Kroken, Rune; Jørgensen, Hugo A.; Løberg, Else-Marie (Peer reviewed; Journal article, 2014-12)
      Illicit drug use may influence cognition in non-affective psychosis. Previous studies have shown better cognition in psychosis with illicit drug use as compared to psychosis only. Possibly, illicit drug using patients have ...