Tom Freeman

Research Student (PhD)


My research interests include

  • Cognitive psychopharmacology of addiction
  • The impact of addiction related behaviours (e.g. attentional bias, craving, expectancy) on non-drug seeking processes (e.g. reward motivation/value learning)
  • Models of psychological disorders, particularly in relation to abnormal beliefs (e.g. delusions) and reward dysfunction.
  • Effects of cannabinoids on human behaviour
  • 'New highs' such as 4-methylmehamphetamine (mephedrone)

Internal collaborators

Prof Val Curran

Dr Celia Morgan

Dr Tom Beesley

External collaborators

Dr James Stone



Morgan CJ, Gardener C, Schafer G, Swan S, Demarchi C, Freeman TP, Warrington P, Rupasinghe I, Ramoutar A, Tan N, Wingham G, Lewis S, Curran HV, (in press) Sub-chronic impact of cannabinoids in street cannabis on cognition, psychotic-like symptoms and psychological well-being. Psychological Medicine.

Freeman TP
, Morgan CJA, Beesley T, Curran HV (in press). Drug-cue induced overshadowing: selective disruption of natural reward processing by cigarette cues amongst abstinent but not satiated smokers. Psychological Medicine.

Curran HV, Freeman TP, Schafer GL, Morgan CJA (2010) Does cannabidiol protect against the harms of THC? British Journal of Psychiatry.

Morgan CJA, Schafer G, Freeman TP, Curran HV (2010) Impact of cannabidiol on the acute memory and psychotomimetic effects of smoked cannabis: a naturalistic study. British Journal of Psychiatry, 197, 285-90.

Morgan CJA, Freeman TP, Schafer GL, Curran HV (2010) Cannabidiol Attenuates the Appetitive Effects of Delta(9)-Tetrahydrocannabinol in Humans Smoking Their Chosen Cannabis. Neuropsychopharmacology, 35, 1879-85.

Freeman TP, Morgan CJA, Klaasen E, Das RK, Stefanovic A, Brandner B, Curran HV (2009) Superstitious conditioning as a model of delusion formation following chronic but not acute ketamine in humans. Psychopharmacology, 206, 563-573.