Which model suggests that individuals are predisposed to drug dependence?

The biological models suggest that individuals may have a genetic predisposition to drug dependence. This perspective emphasizes the role of genetics and neurobiology in the development of substance use disorders. Such models propose that certain individuals may inherit traits that increase their vulnerability to addiction, making them more likely to develop dependence on drugs.

This understanding is supported by research indicating that the heritability of addiction can be significant, with biological factors influencing how individuals respond to substances at a neurological and physiological level. In addition, brain structures, neurotransmitter systems, and the way substances interact with these biological mechanisms are key components of the biological models.

In contrast, other models focus on environmental factors or social influences, which do not place as much emphasis on genetic predisposition. For instance, the public health model looks at broader health impacts, the developmental model considers life stages and experiences, and the family disease model highlights the influence of family dynamics and histories, but may not directly address the inherent biological factors that contribute to drug dependence.