PSY240H5 Lecture 7: Anxiety disorder
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Anxiety disorder( lecture 4)
•What is anxiety?
–Neurobiology of anxiety
•Types of anxiety
•Obsessive compulsive disorder
–What is OCD and how is it classified?
What is anxiety?
•It’s a state where ind feels threatened by the potential occurrence of a future
•It’s a normal human experience
•It can be a positive or negative impact.
•Involves both cortical and subcortical processes.
•Characteristics of anxiety: fear, panic and anxiety
•Fear primitive emotion and occurs due to real or perceived current
threat. (flight or fight response)
•Panic is very similar to fear. However, panic may be triggered in the
absence of provoking event.
A Historical Perspective
•During the 19th and early 20th centuries many psychological problems were
described as neuroses(mental disorder not involve delusions).
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•Until 1980, anxiety disorders were classified with dissociative and somatoform
disorders under the heading on neuroses.
•Freud recognize the difference between objective fears and neurotic anxiety.
Adaptive vs. maladaptive fear
Adaptive fear Maladaptive fear
Concerns are realistic Concerns are unrealistic; source of
anxiety either cannot hurt them or
very unlike to occur
fear experienced in proportion to
Amount of fear experienced is out
of proportion to the threat
Fear response subsides when the
Fear response continues even after
the threat is no longer present. also,
the person may experience a great
deal of anticipatory anxiety
Anxiety includes somatic, emotional, cognitive and behavioral symptoms
Somatic Emotional Cognitive Behavioural
Heart rate increases
Peripheral blood vessels
Adrenaline is secreted
Sense of dread
Fear of losing
Fear of dying
Sense of unreality
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