Critical role of personality and stress in drug dependency

Project Overview

We investigate how personality traits, social hierarchy, and stress exposure influence vulnerability to drug addiction. Using a unique mouse model of dominance and submissiveness, we study behavioral, hormonal, and molecular mechanisms that determine resilience or susceptibility to stress-induced substance abuse. Our goal is to identify biomarkers and therapeutic targets that enable prediction, prevention, and personalized intervention for addiction-related disorders.

Research Focus

  • Addiction Research,
  • Stress Biology
  • Stress Coping Ability
  • Behavioral Psychiatry
  • Neuropsychopharmacology


Experimental Approaches

  • Animal models
  • Behavioral phenotyping
  • CPP assays
  • Genomic and epigenetic analysis hormonal profiling
  • HPA-axis assessment
  • Dopaminergic and endocannabinoid signaling


Clinical Relevance

  • Biomarker discovery for addiction vulnerability
  • Early prediction of stress-induced substance use disorders
  • Personalized prevention and intervention strategies
  • Identification of novel therapeutic targets
  • Precision psychiatry approaches for addiction disorders

Principal Investigator: Prof. Albert Pinhasov

Behavioral and Molecular Psychiatry Lab

Recent publications:

K Cohen, Y Mama, P Rosca, A Pinhasov, AM Weinstein, Chronic use of synthetic cannabinoids is associated with impairment in working memory and mental flexibility. Frontiers in Psychiatry, 2020 Jun 30;11:602.

https://pmc.ncbi.nlm.nih.gov/articles/PMC7339911/

K Cohen, S Rosenzweig, P Rosca, A Pinhasov, A Weizman, A Weinstein, Personality Traits and Psychotic Proneness Among Chronic Synthetic Cannabinoid Users. Frontiers in Psychiatry, 2020 May 15;11:355.

https://pmc.ncbi.nlm.nih.gov/articles/PMC7242629/

Tetiana Kardash, Dmitry Rodin, Michael Kirby, Noa Davis, Igor Koman, Jonathan Gorelick, Izhak Michaelevski, Albert Pinhasov, Link between personality and response to THC exposure. Behavioural Brain Research, 2020 Feb 3:379:112361.

https://pubmed.ncbi.nlm.nih.gov/31734264/