rewarding stimuli – stimuli that the brain interprets as intrinsically positive and desirable or as something to approach.reinforcing stimuli – stimuli that increase the probability of repeating behaviors paired with them.psychological dependence – dependence that involves emotional–motivational withdrawal symptoms (e.g., dysphoria and anhedonia).physical dependence – dependence that involves persistent physical– somatic withdrawal symptoms (e.g., fatigue and delirium tremens).drug withdrawal – symptoms that occur upon cessation of repeated drug use.drug sensitization or reverse tolerance – the escalating effect of a drug resulting from repeated administration at a given dose.dependence – an adaptive state associated with a withdrawal syndrome upon cessation of repeated exposure to a stimulus (e.g., drug intake).addictive drug – psychoactive substances that with repeated use are associated with significantly higher rates of substance use disorders, due in large part to the drug's effect on brain reward systems.addiction – a biopsychosocial disorder characterized by persistent use of drugs (including alcohol) despite substantial harm and adverse consequences.Compulsive sexual behaviour driven by use of pornography Addiction and dependence glossary