Treatment and Therapies for Schizophrenia

To effectively treat schizophrenia, considerable research has gone into studying the mental health disorder, and different theories as to how to treat it have been put forward as a result. So, how do we treat schizophrenia? What are the different types of treatment and therapies for schizophrenia?

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      Both biological and psychological approaches have been taken in an effort to treat the disorder. Biological treatments for schizophrenia tend to focus on the use of drugs (mainly antipsychotics), while psychological treatments focus on therapy sessions with one-on-one interactions with the patient and potential family members, talking through their symptoms and addressing them with a focus on behavioural and thought process changes, alongside the use of token economy systems (although the use of token economies has fallen).

      • We are going to delve into the world of treatments and therapies for schizophrenia.
      • First, we will examine biological treatments of schizophrenia as common treatments for schizophrenia. Biological treatments involve the use of typical and atypical antipsychotics.
      • We will then explore treatment for schizophrenia without medication in the form of psychological treatments for schizophrenia. Psychological treatments involve cognitive behavioural therapy (CBT), family therapy, and token economies.
      • Finally, we will discuss the interactionist approach to treating the disorder, one of the more modern treatments of schizophrenia.

      Treatment and Therapies for Schizophrenia, man sitting with his hands clasped across from someone in a therapy session holding a clipboard, StudySmarterFig. 1 - There are different treatments and therapies available for schizophrenia.

      Common Treatments for Schizophrenia

      Common treatments for schizophrenia vary but typically fall into two categories; a biological approach to treatment and a psychological approach to treatment.

      Modern Treatments for Schizophrenia

      Modern forms of treatment tend to integrate the two approaches to address biological causes of schizophrenia and psychological causes of schizophrenia.

      For example, a schizophrenic patient may be prescribed an atypical antipsychotic drug (medication), a biological treatment for schizophrenia, alongside undergoing cognitive behavioural therapy (CBT), a psychological treatment for schizophrenia.

      Combined approaches are known as the interactionist approach, or biopsychosocial approach, to schizophrenia.

      Biological Treatments for Schizophrenia

      Biological therapies and treatment plans focus on drugs and medications to treat schizophrenia. Antipsychotic drugs are used in the cases of schizophrenia primarily.

      Antipsychotics are a form of drug treatment used to treat the positive and negative symptoms of schizophrenia. The two forms of antipsychotics are typical and atypical antipsychotics.

      Typical Antipsychotics

      Typical antipsychotics are the first generation of antipsychotic drug therapy. Developed in the 1950s, they are known for treating positive symptoms. Since the advent of atypical antipsychotics, they have lost favour, as they have side effects some patients consider too severe to continue treatment consistently. Whether or not they are an outdated treatment or the more modern atypical antipsychotic drugs are better is still up for debate, however.

      Typical antipsychotic drugs include:

      • Chlorpromazine

      • Haloperidol

      They work by affecting the dopamine receptors (D2) in the mesolimbic pathway in the brain primarily (this is the reward centre) but also affect the rest of the brain unintentionally. They’re known as dopamine antagonists, as they block D2 receptors and calm the dopamine system in the brain.

      Positive symptoms of schizophrenia result from the increased subcortical dopamine release in the brain, possibly due to a defect in the cortical pathway through the nucleus accumbens (Brisch et al., 2014).

      By targeting the dopamine system in the brain (the dopamine hypothesis) and blocking the receptors, typical antipsychotics reduce the stimulation that would be caused by any initial dopamine release, reducing positive symptom occurrence.

      Treatment and Therapies for Schizophrenia Dopaminergic mesolimbic pathways StudySmarterFig. 2 - Typical and atypical antipsychotic drugs target the main dopaminergic pathways of the human brain¹.

      Side effects of typical antipsychotics include:

      • Tardive Dyskinesia (uncontrollable muscle movements usually affecting the face).

      • Akathisia (uncomfortable restlessness).

      • Dry mouth.

      • Constipation.

      Atypical Antipsychotics

      Atypical antipsychotics were developed in an attempt to address the side effects of typical antipsychotics.

      Some consider atypical antipsychotics, which were developed in the 1970s, as an improvement compared to typical antipsychotics. They are the second generation of antipsychotics and address positive AND negative symptoms by affecting multiple neurotransmitter systems.

      Examples of atypical antipsychotic drugs include:

      • Clozapine.

      • Olanzapine.

      Atypical antipsychotics affect dopamine receptors in the limbic system. However, they do not affect the rest of the brain as typical antipsychotics do. They also work on:

      • Acetylcholine.

      • Glutamate.

      • Serotonin.

      These neurotransmitters are associated with negative symptoms in schizophrenia. This is where atypical drugs differ, as dopamine affects the positive symptoms, and these neurotransmitters affect the negative symptoms.

      Atypical antipsychotics are known for their supposed less severe side effects (although recent research is disputing this notion).

      Side effects include:

      • Diabetes (long term).

      • Tardive Dyskinesia (uncontrollable muscle movements usually affecting the face), although it is less likely to happen with atypical antipsychotics.

      • Cardiovascular problems.

      • Weight gain.

      Psychological Treatment for Schizophrenia

      As schizophrenia is a somewhat complex mental health disorder, there are multiple avenues of treatment. Psychological treatments for schizophrenia wors through the disorder with an appointed psychiatrist, clinician, or therapist.

      There are multiple forms of psychological treatment, including CBT, family therapies, and token economies.

      Cognitive Behavioural Therapy (CBT)

      Developed in the 1960s by Beck, cognitive behavioural therapy (CBT) focuses on addressing dysfunctional thought processes and behaviours. It encourages patients to work through symptoms such as delusions, hallucinations, and depression by evaluating these symptoms logically.

      CBT lasts around 6 to 12 weeks, although this can vary depending on a patient’s needs. Patients work closely with an appointed therapist to build trust.

      CBT addresses other issues, such as:

      • General, irrational beliefs, e.g., hearing people who are not there talking about you or hearing a voice narrate your daily life.

      • Self-image issues.

      • Beliefs about people’s perception of the patient (Do they hate the patient? Do people think they’re ugly? Do people think they’re a bad person?).

      A process is identified and followed, whereby patients are:

      1. Assessed: Patients explain their issues to a therapist. These are identified, and patients are encouraged to reflect during this stage to understand better where these symptoms originate.

      2. Engaged with: After being assessed, the therapist then begins to logically work through the issues, such as identifying a delusion (for example, believing a neighbour is trying to kill the patient) and explaining why this isn’t the case; the neighbour has no ill intent towards the patient, they are friendly, and it would result in the neighbour being tried and imprisoned.

      CBT adopts the ‘ABC’ method to work through this process.

      This is known as:

      • Activating Event: What is causing the problem?

      • Behaviour and Beliefs: How does the patient react in these situations?

      • Consequences: What impact does this have on the patient’s life and relationships with others?

      If a patient believes someone is following them, this is the activating event. They then begin to act secretive/have extreme behavioural responses, and this is the behaviour and beliefs change.

      The consequences are irrational thoughts affecting how a patient operates daily life, as they may avoid certain activities crucial to daily living, such as grocery shopping and exercise. The therapist then disputes this irrational belief, working through it logically, which restructures the event for the patient.

      Disputing irrational beliefs can be addressed using these methods:

      • Reality testing.

      • Normalisation.

      • Critical analysis of ideas together (therapist and patient).

      Family Therapy

      Whilst providing therapy for the patient is a good start, when factors such as expressed emotions and dysfunctional family issues are taken into account, family therapy is a form of treatment that should be considered in schizophrenia.

      Family therapy is a form of treatment that involves the patient and their respective family members, especially those who live in the same household.

      It focuses on reducing expressed emotion (EE), associated with relapse issues, alongside stress and guilt among family members who live with the patient. Usually, it is given through group sessions involving the patient and their family.

      Like CBT, family therapy involves assessing the patient and the family and providing the appropriate treatment. It does so by focusing on educating family members about the disorder, reducing stress levels, and providing opportunities to learn about problem-solving associated with schizophrenia issues². Family therapy teaches family members and patients how to deal with schizophrenia at home to avoid relapses, and often educates family members while patients may have been hospitalised.

      Family therapy will interview and, in some cases, observe the family and the patient interacting.

      Teaching family members communication training can be done in the following ways:

      • Compromise and negotiation involve weekly meetings to air out issues.

      • Being family-centred: the whole family is the focus, not just the patient.

      These methods should improve problem-solving skills for the family involved, rather than resorting to negative behaviours that worsen schizophrenic symptoms in the patient and dismantle relationships.

      Treatment and Therapies for Schizophrenia, couple sat on a couch opposite a therapist with their heads in their hands, StudySmarterFig. 3 - Family therapy in schizophrenia aims to educate the family and reduce relapse rates.

      Token Economy Systems (TES)

      Although not as highly used with the reduced need to hospitalise patients with schizophrenia, token economies are a form of psychological treatment that aims to address the disorder through operant conditioning.

      Token economy systems (TES), developed in the 1960s, are reward systems based on operant conditioning and are used to encourage good behaviours in a patient with schizophrenia, treating maladaptive behaviours (behaviours preventing a patient from adapting to new situations).

      It involves a system introduced when the patient is first hospitalised, as TES were particularly popular when institutionalisation was common for schizophrenic patients.

      Tokens, such as physical items (chips or plastic coins) or a tally system, are used as a secondary reinforcer earned through good behaviour. This can include:

      • Getting up on time.

      • Getting washed and dressed.

      • Brushing teeth.

      Once patients earn enough tokens, a patient can trade them in for a reward, known as the primary reinforcer. Secondary reinforcers gain power by being associated with the primary reinforcer.

      Three examples, established by Matson et al. (2016), are good instances of behaviours tackled by token economy systems:

      • Personal care (issues with hygiene such as showering, changing clothes, and brushing teeth).

      • Condition-related behaviour (issues with positive and negative symptoms).

      • Social behaviour (issues with socialising with other people)

      It is a motivational therapy but has underlying issues. Mainly, patients have to want to do the above behaviours. TES works by being specific to patients, using their favourite things to encourage desirable behaviours.

      Interactionist Approach: The Diathesis-Stress Model

      The interactionist approach differs from the biological or psychological approach to schizophrenia.

      The interactionist approach combines psychological, biological and social factors (biopsychosocial), and it considers how this affects the development of schizophrenia and the subsequent treatment options for schizophrenia.

      It is holistic in that it considers the patient as a whole person, rather than identifying them through their mental health disorder alone (a reductionist issue).

      A well known interactionist approach is the diathesis-stress model.

      The Diathesis-Stress Model

      The diathesis-stress model combines the biological factors of schizophrenia and the psychological factors of schizophrenia, in an attempt to address

      The diathesis-stress model suggests schizophrenia is due to an internal vulnerability (diathesis) and an external environmental factor (stressor). This diathesis is predisposed and was potentially (in that, this was what we once believed) due to one specific gene: the schizogene.

      We now understand that schizophrenia is a polygenetic disorder and results from dopamine imbalances in the brain.

      Studies have found that early childhood trauma can act as a trigger for schizophrenia to develop. Issues such as:

      • Birthing complications,

      • General pregnancy complications.

      • Negative life experiences (such as academic pressures or emotional breakups).

      • Childhood traumas (expressed emotion, family dysfunction) altering neurological development - Read (2001).

      Drug abuse has also been linked to the development of schizophrenia, such as using cannabis (increasing levels of paranoia, a positive symptom in schizophrenia).

      Two prominent cases involving the diathesis-stress model are:

      1. Gottesman (1991): twin study, where they compared identical twins with non-identical twins. Only 48% of identical twins developed schizophrenia, despite sharing 100% of their DNA - this suggests that both of these twins have a genetic vulnerability to schizophrenia. However, psychological factors such as experiences in the environment help trigger the disorder, as otherwise identical twins (MZ twins) would have a 100% concordance rate.

      2. Tienari (2004): This study investigated adopted biological children of schizophrenic mothers. 36.8% of the children developed schizophrenia in dysfunctional households, compared to just 5.8% of children in healthy households. There is genetic vulnerability, and the family household acted as a stressor to trigger schizophrenia.

      The interactionist approach understandably encourages a combination of biological and psychological therapies to treat schizophrenia. It is supported by studies that show combining antipsychotic treatment with a form of therapy reduces symptoms and rehospitalisation.

      Antipsychotics, in a lot of cases, reduce symptoms to allow patients to undergo therapy.


      Treatment and Therapies for Schizophrenia - Key takeaways

      • Treatments and therapies for schizophrenia are divided into two main categories: biological and psychological approaches.
      • Biological treatments involve the use of antipsychotic drugs. These can be typical (affecting only dopamine) or atypical (affecting dopamine, acetylcholine, glutamate and serotonin).
      • Typical antipsychotics have more severe side effects (such as dry mouth, tardive dyskinesia, and akathisia), atypical antipsychotics have less severe side effects (such as weight gain and tardive dyskinesia - although less often). Atypical antipsychotics are seen as the more modern treatment for schizophrenia.
      • Psychological therapies include cognitive behavioural therapy, family therapy and token economy systems.
      • The interactionist approach encourages a combination of biological and psychological therapies. The diathesis-stress model suggests schizophrenia is due to an internal vulnerability (diathesis) and an external environmental factor (stressor).

      References

      1. Fig. 2 - The main dopaminergic pathway of the human brain by User: Slashme; Patrick J. Lynch; User: Fvasconcellos, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
      2. Priory. (2019). What happens during family therapy for schizophrenia | Priory Group. Priorygroup.com. https://www.priorygroup.com/blog/how-does-family-therapy-help-with-schizophrenia ‌
      Frequently Asked Questions about Treatment and Therapies for Schizophrenia

      What treatments are available for schizophrenia?

      There are multiple forms of treatment available for schizophrenia, and they can be biological and/or psychological. Schizophrenia can either be treated through medication, such as typical and atypical antipsychotics, or through therapy, such as family therapy, cognitive behavioural therapy, and token economy systems. Biological and psychological treatments can also be combined. 

      What are the most effective treatments for schizophrenia?

      Treatment for schizophrenia is subjective. One treatment plan may be more effective for one person than another. Typically, drug treatments are quite effective in addressing symptoms of the disorder, and therapy offers effective treatment in addressing dysfunctional thoughts and behaviours. 

      What kind of therapy is used to treat schizophrenia? 

      There are multiple types of therapies for schizophrenia: cognitive behavioural therapy, family therapy, and token economy systems are examples. 

      Can schizophrenia be cured?

      Not entirely. It can be treated to lessen the symptoms and improve the quality of life for patients, but the condition is incredibly complex and hard to pinpoint exactly what is causing it.

      What is the first line of treatment for schizophrenia?

      Typically, patients are assessed and then prescribed medication in the form of antipsychotic drugs as the first line of treatment for their disorder.

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      Is the internal vulnerability predisposed?

      True or False: Family therapy is a form of treatment that involves the patient and their respective family members, especially those who live in the same household.  

      True or False: CBT typically adopts the ‘ABC’ method in schizophrenia.

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