medRxiv Preprint Server
April 23, 2026
Giada Lombardi, Grace Blest‐hopley, Martina Maria Tarantini et al.
preprint
Regular cannabis use has been associated with alterations in reward-related neural processes, yet findings remain inconsistent and the relationship between neural activity and behavioural performance is not fully understood. The present study aimed to characterise neural and behavioural correlates of reward processing in regular cannabis users (CU) compared with matched non-users (NU) using the...
European Neuropsychopharmacology
July 1, 2018
Marco Colizzi, P. McGuire, Vincent Giampietro et al.
Cannabis use has been associated with psychosis and cognitive dysfunction. Some evidence suggests that the acute behavioral and neurocognitive effects of the main active ingredient in cannabis, (-)-trans-Δ9-tetrahydrocannabinol (∆9-THC), might be modulated by previous cannabis exposure. However, this has not been investigated either using a control group of non-users, or following abstinence in...
Frontiers in Psychology
2016
Nick Medford, Mauricio Sierra, Argyris Stringaris et al.
This paper presents functional MRI work on emotional processing in depersonalization disorder (DPD). This relatively neglected disorder is hallmarked by a disturbing change in the quality of first-person experience, almost invariably encompassing a diminished sense of self and an alteration in emotional experience such that the sufferer feels less emotionally reactive, with emotions experienced...
International Journal of Clinical and Experimental Hypnosis
March 24, 2012
Quinton Deeley, David A Oakley, Brian Toone et al.
149 citations
Debate regarding the neural basis of the hypnotic state continues, but a recent hypothesis suggests that it may produce alterations in the default mode network (DMN). DMN describes a network of brain regions more active during low-demand compared to high-demand task conditions and has been linked to processes such as task-independent thinking, episodic memory, semantic processing, and...
Archives of General Psychiatry
April 1, 2009
Sagnik Bhattacharyya, Paolo Fusar‐poli, Stefan Borgwardt et al.
250 citations
CONTEXT: Cannabis sativa use can impair verbal learning, provoke acute psychosis, and increase the risk of schizophrenia. It is unclear where C. sativa acts in the human brain to modulate verbal learning and to induce psychotic symptoms. OBJECTIVES: To investigate the effects of 2 main psychoactive constituents of C. sativa, Delta9-tetrahydrocannabinol (Delta9-THC) and cannabidiol, on regional...