Anxiety Flashcards Preview

Neuroscience > Anxiety > Flashcards

Flashcards in Anxiety Deck (55)
Loading flashcards...
1

What is Fear?

An immediate alarm to present danger, characterized by a strong motivation to escape

2

What is Anxiety?

A mood state arising from the expectation of a future threat that is perceived as uncontrollable or unavoidable

3

Fear activates the ______ axis to bring about the fight-or-flight resposnse

SAM - Sympatho-Adreno-Medullary

4

What is characterized as a chronic mood state and cognitive process which is a response to a perceived future threat ?

Anxiety

5

what is characterized as a brief, automatic, emotional response to a imminent threat which results in intense autonomic arousal as a survival instinct ?

Fear

6

_______ is a normal and appropriate reaction to stressful situations

Anxiety

7

Anxiety _______ are when anxious feelings become so frequent or intense that they begin to take over an individuals life

Disorders

8

Individuals with anxiety disorders are at high risk of committing _____

Suicide

9

What are anxiety disorders most commonly comorbid with?

Depression

10

What is a panic attack?

An abrupt surge of intense fear or discomfort

11

What can most physical symptoms of panic attacks be attributed to?

Activation of the Sympathetic Nervous System

12

What is a panic disorder?

An anxiety attack in which panic attacks occur repeatedly without warning or a clear relation to external stimuli

13

What is it called when someone dreads the possibility of a future panic attack, which can lead to withdrawal from society and even cause more panic attacks?

Anticipatory Anxiety

14

What is a Phobia?

Anxiety disorder characterized by panic attacks directed at a specific object or situation

15

What is the most common anxiety disorder?

Phobia

16

What is social phobia?

Fear of being involved in society

17

What Agoraphobia?

Fear of being in public spaces

18

How doe most people attempt to control their phobias?

By avoiding triggering objects or situations

19

What area of the brain is responsible for emotional and motivated behaviours and becomes activated in times of fear?

Amygdala

20

What structure does the amygdala output to and what this structure regulate?

Hypothalamus
Stress response (SAM and HPA)

21

The amygdala's fast response to a stimulus occurs via the _________ and happens before we even know what it is we are afraid of

Thalamus

22

The amygdala's slow response occurs as input from a fearful stimulus is relayed from the _______ to the _______ where it is processed, allowing you to identify the threat and response accordingly

Thalamus
Cortex

23

The _____ is our conscious control over anxiety and is involved in the final stages of reacting to danger by planning course of action required to address the situation

PFC

24

Brain image studies on individuals with panic disorders reveal increased activation in the ___________ and ___________

Cingulate Cortex and Parahippocampal Gryus

25

What functions are the Cingulate Cortex and Parahippocampal Gyrus involved in?

Learning and Memory - particularly avoidance and fear learning

26

Brain image studies on individuals with panic disorders often show hypersensitivity in the ___________

Amygdala

27

What is hypersensitivity in the Amygdala tied with?

Enhanced response to anxiety-provoking stimuli

28

Brain image studies on individuals with panic disorders often reveal decreased activity in the ___________

PFC

29

What does loss of activity in the PFC during panic attacks explain?

Confusion
Disorientation
Aggressive Behaviour

30

Overall excessive excitatory _______ may enhance anxiety

Neurotransmission