Behavioural and Psychiatric Disorders
                     BEHAVIOURAL 
AND PSYCHIATRIC 
DISORDERS
Introduction
• The term psychological disorder is sometimes used to refer to what is more frequently known as 
mental disorders or psychiatric disorders. Mental disorders are patterns of behavioral or 
psychological symptoms that impact multiple areas of life.
Source: www.verywellmind.com
Neurodevelopmental Disorders
• Neurodevelopmental disorders are those that are typically diagnosed during infancy, childhood, 
or adolescence. These psychological disorders include:
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Communication Disorders 
• These disorders are those that impact the ability to use, understand, or detect language and 
speech. 
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Bipolar and Related Disorders
• Bipolar disorder is characterized by shifts in mood as well as changes in activity and energy 
levels. The disorder often involves experiencing shifts between elevated moods and periods of 
depression. 
Source: www.verywellmind.com
Anxiety Disorders
• Anxiety disorders are those that are characterized by excessive and persistent fear, worry, 
anxiety and related behavioral disturbances. Fear involves an emotional response to a threat, 
whether that threat is real or perceived. Anxiety involves the anticipation that a future threat may 
arise.
Source: www.verywellmind.com
Stress-Related Disorders
• Trauma and stressor-related disorders involve exposure to a stressful or traumatic event.
•  These were previously grouped with anxiety disorders but are now considered a distinct 
category of disorders. 
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Dissociative Disorders
• Dissociative disorders are psychological disorders that involve a dissociation or interruption in 
aspects of consciousness, including identity and memory.
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Somatic Symptom Disorders
• Somatic symptom disorders are a class of psychological disorders that involve prominent 
physical symptoms that may not have a diagnosable physical cause.
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Sleep Disorders
• Sleep disorders involve an interruption in sleep patterns that lead to distress and affects daytime 
functioning.
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Disruptive Disorders
• Impulse-control disorders are those that involve an inability to control emotions and behaviors, 
resulting in harm to oneself or others.
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Depressive Disorders
• Depressive disorders are a type of mood disorder that include a number of conditions. They are 
all characterized by the presence of sad, empty, or irritable moods accompanied by physical and 
cognitive symptoms. 
Source: www.verywellmind.com