Therapies in Psychology: An Overview of Psychological and Biomedical Approaches

Therapies in Psychology

Introduction

Therapies in psychology encompass a wide range of approaches designed to alleviate psychological distress and improve mental health. These methods can be broadly categorized into psychological (talk-based) and biomedical (medication or medical procedure-based) therapies. This guide provides an overview of the main types of therapies, their mechanisms, and applications.

Psychological Therapies

Mental Health Providers

• Clinical Psychologists: Hold PhDs and treat a range of psychological disorders from mild to severe.

• Counselling Psychologists: Hold MA/MSc/MEd or PhDs and focus on more common, less severe problems.

• Psychiatrists: Medical doctors (MDs) who can prescribe medication and treat psychological disorders.

Insight Therapies

Insight therapies aim to help individuals gain a deeper understanding of their thoughts, feelings, and behaviors through dialogue with a therapist.

• Psychodynamic Therapies: Focus on resolving unconscious conflicts, often rooted in childhood experiences. Techniques include:

  • Free Association: Patients speak freely to uncover unconscious thoughts.

  • Dream Analysis: Interpreting dreams to reveal unconscious desires and conflicts.

  • Resistance: Patient's reluctance to confront unconscious material.

  • Transference: Projecting feelings about important people onto the therapist.

• Object Relations Therapy: Emphasizes the impact of early childhood relationships and emotional attachments on psychological functioning.

Humanistic-Existential Psychotherapy

This approach emphasizes the inherent goodness of people and their potential for personal growth. It encourages clients to express their authentic selves, seek love and belonging, and take responsibility for their lives.

• Humanistic Therapy: Focuses on removing obstacles to self-actualization.

• Existential Therapy: Helps clients confront existential fears and find meaning.

• Phenomenological Approach: Centers on the client's subjective experience.

• Client-Centred (Person-Centred) Therapy: Developed by Carl Rogers, this therapy provides unconditional positive regard and empathy to help clients grow.

• Conditions of Worth: When acceptance is conditional, it can negatively impact self-esteem and psychological health.

• Emotion-Focused Therapy (EFT): Helps clients become aware of and transform emotions.

Behavioural, Cognitive, and Group Therapies

Behavioural Therapies

Behavioural therapies directly address maladaptive behaviors and their environmental triggers using principles of learning.

• Systematic Desensitization: Gradual exposure to a feared stimulus paired with relaxation training to reduce anxiety responses.

• Flooding: Intense, prolonged exposure to the feared stimulus without gradual buildup.

• Virtual Reality (VR) Therapy: Uses simulated environments for exposure, especially effective for PTSD.

Aversive Conditioning

Aversive conditioning replaces a positive response to a harmful stimulus with a negative response, often using punishment or unpleasant associations.

• Example: Antabuse (disulfiram) is used to treat alcohol dependence by causing sickness when alcohol is consumed.

Cognitive-Behavioural Therapies (CBT)

CBT combines cognitive and behavioural techniques to modify dysfunctional thoughts and behaviors. It includes:

• Cognitive Restructuring: Identifying and challenging distorted thinking patterns.

• Stress Inoculation Training: Teaching coping skills for managing stress.

• Exposure Therapy: Gradually confronting avoided situations or thoughts.

Mindfulness-Based Cognitive Therapy (MBCT)

MBCT integrates traditional CBT with mindfulness meditation to help individuals become more aware of their thoughts and feelings in a non-judgmental way.

• Self-Acceptance: Encourages curiosity, openness, acceptance, and love toward oneself.

• Decentring: Observing thoughts and behaviors objectively, as an external observer.

Group and Family Therapies

These therapies involve multiple participants and focus on interpersonal relationships and communication patterns.

• Group Therapy: Provides support and feedback from peers with similar issues.

• Family Therapy: Addresses family dynamics and their impact on individual members, especially in cases of addiction or conflict.

Biomedical Therapies

Psychopharmacology

Psychopharmacology involves the use of medications to alter psychological functioning and treat mental disorders.

• Antidepressants: Target monoamine neurotransmitters (dopamine, serotonin, norepinephrine).

  • MAOIs (Monoamine Oxidase Inhibitors): Block the breakdown of monoamines, increasing their availability.

  • Tricyclics: Block reuptake of serotonin and norepinephrine.

  • SSRIs & SNRIs: Selectively inhibit reuptake of serotonin (SSRIs) or both serotonin and norepinephrine (SNRIs).

• Herbal Treatments: Some, like St. John’s wort, may affect neurotransmitter systems.

• Mood Stabilizers: Used for bipolar disorder; examples include lithium and anticonvulsants.

MDMA-Assisted Psychotherapy

MDMA (Ecstasy) is being researched as an adjunct to psychotherapy, particularly for PTSD. It may enhance the therapeutic process by reducing fear and increasing openness.

• Effects: Decreases amygdala and temporal lobe activity (reducing fear), increases norepinephrine and dopamine (improving concentration and re-conditioning).

• Research: Studies show greater symptom reduction with MDMA-assisted therapy compared to placebo.

Technological and Surgical Methods

Some severe or treatment-resistant cases may require technological or surgical interventions.

• Lobotomy & Leucotomy: Historical procedures involving severing connections in the brain's prefrontal cortex.

• Focal Lesions: Targeted destruction of brain tissue using devices like stereotaxic apparatus or high-intensity focused ultrasound.

• Electroconvulsive Therapy (ECT): Induces controlled seizures to treat severe depression or other disorders.

• Repetitive Transcranial Magnetic Stimulation (rTMS): Uses magnetic fields to stimulate brain regions non-invasively.

• Deep Brain Stimulation (DBS): Involves implanting electrodes to modulate brain activity.

References

• VR for PTSD: https://www.youtube.com/watch?v=QCCWH_CNjM0

• Glore Psychiatric Museum: https://en.wikipedia.org/wiki/Glore_Psychiatric_Museum

• TMS at CAMH: https://www.camh.ca/en/health-info/mental-illness-and-addiction-index/repetitive-transcranial-magnetic-stimulation