Drug craving is a key feature of addiction, driven by complex neural mechanisms involving reward and memory circuits. The mesolimbic dopamine pathway, particularly the nucleus accumbens, plays a central role in craving by reinforcing substance-related cues. The prefrontal cortex, responsible for decision-making and impulse control, often exhibits impaired functioning, making it difficult for individuals to resist urges. Additionally, the amygdala and hippocampus contribute by linking emotional and contextual triggers to past substance use experiences. Neuroimaging studies have revealed heightened activity in these brain regions during craving episodes, highlighting potential targets for interventions like transcranial magnetic stimulation (TMS) and pharmacotherapy to reduce craving intensity.
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