Li et al. (2013) Abnormalities in Heroin-Addicted Users (Edexcel A-Level Psychology): Flashcards
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Brain region Li et al. studied in heroin addiction
Brain region Li et al. studied in heroin addiction
Posterior cingulate cortex (PCC)
No. of heroin users in Li et al. sample
No. of heroin users in Li et al. sample
14 males
Avg. heroin use duration in Li et al. participants
Avg. heroin use duration in Li et al. participants
89 months
Brain regions with stronger PCC connectivity in heroin users
Brain regions with stronger PCC connectivity in heroin users
Bilateral insula & bilateral dorsal striatum
Relationship: PCC connectivity & length of heroin use
Relationship: PCC connectivity & length of heroin use
Positive correlation
2 processes PCC linked to
2 processes PCC linked to
Visual orientation & reward processing
Why ex-addicts susceptible to relapse per Li et al.
Why ex-addicts susceptible to relapse per Li et al.
Drug cues activate brain circuitry for craving
Insula's role in addiction
Insula's role in addiction
Links emotional states with decision-making behaviours
Dorsal striatum association in addiction
Dorsal striatum association in addiction
Drug-seeking behaviour
Key limitation of Li et al. sample
Key limitation of Li et al. sample
Small, male-only, one culture