12.1.2 Negative Symptoms

• Negative symptoms of schizophrenia involve the reduction or absence of normal functions or behaviours
• What is alogia in schizophrenia?

  Reduced speech
• Affective flattening in schizophrenia involves a reduced expression of emotions
• What is asociality in schizophrenia?

  Disinterest in social interactions
• Match the negative symptom with its definition:

  Alogia ↔️ Reduction in speech

  Avolition ↔️ Lack of motivation

  Affective Flattening ↔️ Reduced emotional expression

  Asociality ↔️ Disinterest in social interactions
• Positive symptoms of schizophrenia add abnormal experiences, while negative symptoms reduce normal functions.
• Arrange the following negative symptoms of schizophrenia in alphabetical order:

  1️⃣ Affective Flattening

  2️⃣ Alogia

  3️⃣ Asociality

  4️⃣ Avolition
• What is affective flattening in schizophrenia?

  Reduced emotional expression
• Asociality refers to a disinterest in social interactions
• Alogia is characterized by a reduction in speech.
• What is avolition in schizophrenia?

  Lack of motivation
• Positive symptoms involve the addition of abnormal experiences like hallucinations and delusions.
• Negative symptoms of schizophrenia involve the reduction or absence of normal functions
• What is the defining characteristic of alogia?

  Reduced speech
• Avolition is characterized by a lack of motivation.
• What emotional change is associated with affective flattening?

  Reduced emotional expression
• Asociality involves a disinterest in social interactions
• Positive symptoms involve the addition of abnormal experiences like hallucinations and delusions.
• Match the negative symptom with its definition:

  Alogia ↔️ Reduction in speech

  Avolition ↔️ Lack of motivation

  Affective Flattening ↔️ Reduced emotional expression

  Asociality ↔️ Disinterest in social interactions
• What is an example of alogia in daily life?

  Answering with single words
• An example of avolition is not starting household chores
• How might affective flattening manifest in someone's behavior?

  Showing no facial expression
• Asociality can lead to avoiding social gatherings.
• Order the following examples of negative symptoms from most to least common:

  1️⃣ Alogia

  2️⃣ Affective Flattening

  3️⃣ Avolition

  4️⃣ Asociality
• What are the defining characteristics of negative symptoms?

  Absence of normal functions
• An individual with positive symptoms might hear voices that are not there
• Match the cause of negative symptoms with its effect:

  Neurochemical imbalances ↔️ Reduced motivation

  Structural abnormalities ↔️ Brain changes in the prefrontal cortex

  Genetic factors ↔️ Increased risk from twin studies

  Environmental factors ↔️ Adverse events during pregnancy