Table of contents

1. Introduction to Psychology1h 43m

What is Psychology?
14m

Early Schools of Thought
24m

Introduction to Subfields
1m

Gestalt Psychology
5m

Behaviorism
8m

Developmental Psychology
8m

Social Psychology
11m

Cognitive Psychology
7m

Evolutionary Psychology
6m

Cultural Psychology
9m

Contemporary Psychology: Putting it All Together
4m

2. Psychology Research2h 20m

The Scientifc Method in Psychology
25m

Intro to Research Methods
59m

Developmental Designs
9m

Evaluating Research Findings
37m

APA Formatting - References
7m

3. Biological Psychology2h 41m

Organization of the Nervous System
16m

Cells of the Nervous System
21m

Communication in the Nervous System
36m

Organization of the Brain
4m

The Hindbrain
8m

The Cortical Forebrain
26m

The Subcortical Forebrain
12m

Summary of Important Brain Regions
7m

The Endocrine System
6m

Genes and Environment
19m

4. Sensation and Perception28m

Visual Stimuli
6m

Visual Anatomy
12m

Color Vision
9m

5. Consciousness and Sleep32m

Sleep
32m

6. Learning1h 26m

Classical Conditioning
41m

Applications of Classical Conditioning
7m

Operant Conditioning
34m

Roadmap - History of Conditioning Research
3m

7. Memory34m

Information Processing Model
4m

Storage - The Three Box Model of Memory
29m

8. Cognition37m

The Structure of Language
12m

Language Development
25m

9. Emotion and Motivation35m

Emotion
11m

Appraisals and Action Tendencies
7m

Theories of Emotion
16m

10. Developmental Psychology1h 20m

Piaget's Cognitive Developmental Theory
33m

Attachment
32m

Parenting Styles
14m

11. Personality1h 17m

The Psychodynamic Perspective on Personality
48m

The Humanist Perspective
10m

Trait Theories
18m

12. Social Psychology1h 18m

Attributions
15m

Conformity
14m

Obedience
12m

Social Forces
20m

Group Behavior
10m

Cognitive Dissonance
5m

13. Stress and Health41m

Introduction to Stress
15m

Stress Physiology
12m

General Adaptation Syndrome
9m

Stress and Immune Function
4m

14. Psychological Disorders1h 27m

Diagnosing Psychological Disorders
22m

Perspectives on Psychological Disorders
16m

Prevalence and Comorbidity
6m

Depression
27m

Schizophrenia
14m

15. Treatment1h 24m

Biological Therapies
47m

Psychotherapy
3m

Psychodynamic Therapies
10m

Behavioral and Cognitive Therapies
22m

14. Psychological Disorders

Depression

Psychology

14. Psychological Disorders

Depression

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Multiple Choice

In biological theories of depression, the disorder has most consistently been linked to abnormal functioning of which neurotransmitter system?

Excess acetylcholine activity

Serotonin (5-HT) dysregulation

Increased GABAergic transmission

Reduced glutamate release across synapses

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Verified step by step guidance

Step 1: Understand that biological theories of depression focus on the role of neurotransmitters, which are chemical messengers in the brain that influence mood and behavior.

Step 2: Identify the neurotransmitter systems listed in the problem: acetylcholine, serotonin (5-HT), GABA, and glutamate, and recognize their general functions in the brain.

Step 3: Recall that serotonin (5-HT) is widely studied in relation to mood regulation and is often implicated in depression due to its role in emotional processing and mood stabilization.

Step 4: Note that abnormal serotonin functioning, often referred to as serotonin dysregulation, is the most consistently linked neurotransmitter abnormality in depression according to biological theories.

Step 5: Conclude that among the options, serotonin (5-HT) dysregulation best fits the biological theory of depression's focus on neurotransmitter abnormalities.