In a groundbreaking move, the American Society of Addiction Medicine (ASAM) has redefined addiction as a chronic brain disease that profoundly affects the reward, motivation, memory, and related neural circuitry, leading to altered motivations and behaviors that often have detrimental consequences.
The Neurological Impact of Addiction
Addiction's imprint on the brain's reward system leaves lasting memories of past rewards, triggering biological and behavioral responses that drive individuals to engage in addictive behaviors despite negative consequences or diminished pleasure. Furthermore, the frontal cortex, responsible for impulse control and sound judgment, undergoes alterations that lead to a "pathological pursuit of rewards" and diminished resistance to addictive behaviors.
Defining Characteristics of Addiction
ASAM outlines several key characteristics that define addiction:
- Inability to Consistently Abstain: Addicts face immense challenges in controlling their addictive behaviors and find it exceptionally difficult to abstain from them.
- Impairment in Behavioral Control: Addiction erodes individuals' control over their behaviors, leading to increased engagement in addictive activities despite adverse outcomes.
- Craving or Heightened "Hunger": Addicts experience intense cravings or a heightened desire for drugs or addictive experiences.
- Diminished Recognition of Problems: Often, addicts fail to acknowledge the problems caused by their addiction, negatively affecting relationships and overall well-being.
- Dysfunctional Emotional Response: Addiction can trigger emotional changes such as increased anxiety, dysphoria, and emotional anguish.
Accompanying Features of Addictive Behavior
Several other features commonly accompany addiction:
- Cue-Triggered Cravings and Behaviors: External cues can trigger intense cravings and addictive behaviors.
- High Relapse Risk: Even after prolonged abstinence, the risk of relapse remains high for addicts.
- Continued Addiction Despite Problems: Addicts frequently persist in their addictive behaviors even when faced with mounting problems and negative consequences.
- Narrowed Behavioral Repertoire: Addictive behaviors often become narrowly focused on specific substances or behaviors, limiting the range of activities individuals engage in.
Impaired Control and Judgment Issues
Addiction can lead to impaired control and judgment, resulting in:
- Engaging in More Addictive Behavior than Intended: Addicts often find themselves engaging in more addictive behaviors than they initially intended.
- Increased Absenteeism from Work or School: Absenteeism from work or school becomes more prevalent due to the preoccupation with addictive behaviors.
- Continued Substance Use Despite Consequences: Addicts may continue using substances despite experiencing physical or psychological consequences.
- Reduced Variety of Addictive Behaviors: Individuals with addiction typically exhibit a narrower range of addictive behaviors, focusing on specific substances or activities.
Cognitive and Emotional Changes
Cognitive changes associated with addiction include:
- Preoccupation with the Substance or Behavior: Addicts often become preoccupied with the addictive substance or behavior, thinking about it constantly.
- Altered Perception of Addiction's Pros and Cons: Addicts may have distorted views of the benefits and drawbacks of addiction, often minimizing the negative aspects.
- False Beliefs about Consequences: Addicts may hold false beliefs that the negative consequences of addiction are not predictable or inevitable outcomes of their behavior.
Emotional changes associated with addiction include:
- Increased Anxiety, Dysphoria, and Emotional Pain: Addicts often experience heightened anxiety, dysphoria, and emotional distress.
- Increased Stress Sensitivity: Situations may appear more stressful than they objectively are to individuals with addiction.
- Difficulty Identifying and Expressing Feelings: Addicts may struggle to identify and express their feelings, leading to emotional turmoil and disconnection.
Implications for Treatment
Traditionally, addiction treatment has focused on specific substances or behaviors, often resulting in the substitution of one addiction for another. ASAM emphasizes the need for comprehensive treatment that addresses all active and potential substances and behaviors with addictive potential. However, this new definition does not absolve addicts from taking responsibility for their behaviors, just as individuals with heart disease or diabetes must manage their conditions.
The recognition of addiction as a chronic brain disease represents a significant shift in understanding its nature and paves the way for more effective and holistic treatment approaches that address the underlying neurological and behavioral mechanisms driving addictive behaviors.