Psychology HL
10
Chapters
298
Notes
Unit 1 - Research Methodology
Unit 2 - Biological Approach To Behaviour
Unlock Your Brain's Secrets: An Easy, Fun Guide!
Unlock The Secrets: Dive Into Brain Localization Magic!
Exploring Brain Functions: The Multi-Tasking Marvel
Unlock The Mysteries Of Brain Lateralization!
Unlock The Secrets Of Brain Localization And Neuroplasticity!
Unlock the Secrets of Your Adaptable Brain: Neuroplasticity Unveiled
Unlock Your Brain’s Power: Unveil the Secrets of Neuroplasticity!
Unlock The Secrets Of Your Adaptable Brain Now!
Unlocking Secrets: Nervous System & Its Marvelous Mysteries
Serotonin's Impact On Prosocial Behavior: A Dive Into Free Will!
Unlocking Love's Mysteries: The Dopamine Connection Revealed!
Serotonin's Role In Moral Choices: A Deep Dive
Unlocking Serotonin's Role In Depression: Myths & Realities
CAT Vs. MRI: Unveiling The Brain's Best Selfie!
Unlocking Brain Secrets: Dive Into fMRI Explained!
Unlock Brain Mysteries: PET Vs. EEG Explained!
Unlock Brain Secrets: Dive Into Neuroimaging Studies!
Unlocking Secrets: Hormones Vs. Neurotransmitters Explained!
Oxytocin: The Love Hormone's Mysteries Unveiled!
Oxytocin Boosts Trust In Human Interactions: A Study Insight
Unlocking Love's Secret: How Oxytocin Guards Fidelity
The Dark Side Of Oxytocin: Beyond The 'Love Hormone'
Oxytocin: The Love Hormone's Unexpected Influence on Bias
Unveiling Human Pheromones: Nature's Love Texts?
Unveiling Pheromones: Truth Behind Androstadienone's Power!
Pheromones Boost Romance? Dive Into The Research!
Unlocking The Mysteries Of Human Pheromones: Fact Or Fiction?
Decoding Life: Chromosomes, DNA & The Magic Within!
Nature Vs. Nurture: Decoding Behavior & Genetics
Unraveling IQ: Twins, Genetics & Bouchard's Insights!
Genes & Environment: The Dual Dance of IQ
Unlocking Genetics: From Genotype To Phenotype & Beyond
Discovering Childhood's Impact: Rat Moms, Stress & Human Genetics
MZ Twins: DNA, Epigenetics, and Life's Intriguing Twists
Evolution & Psychology: A Deep Dive Into Human Behavior
Evolutionary Roots of Disgust: Key Discoveries Revealed!
Evolutionary Psychology: Myths, Mechanisms, & Modern Debates
Unraveling Psychology: The Role of Animal Models
Unlocking Secrets: How Animal Studies Shape Human Understanding
Ethical Guidelines For Animal Research In Psychology
Unit 3 - Cognitive Approach To Behaviour
Unit 4 - Sociocultural Approach To Behavior
Unit 5 - Abnormal Psychology
Unit 6 - Health psychology
Unit 7 - Psychology Of Human Relationships
Unit 8 - Developmental Psychology
Unit 9 - Internal Assessment
Unit 10 - The IB Curriculum - A Conceptual Model
Psychology HL
Unit 2 - Biological Approach To Behaviour
Unlocking Serotonin's Role In Depression: Myths & Realities
663 words
4 mins read
Last edited on 5th Nov 2024
Table of content
Introduction to serotonin 🧠
- Serotonin: A neurotransmitter that affects mood.
- Relation with major depressive disorder: A condition where someone feels extremely sad, hopeless, and unimportant.
Serotonin hypothesis 📖
- What is it?
- Theory: Low serotonin in the brain causes depression.
- How do they study it?
- Clinical trials with two groups
- Experimental group: Given drugs affecting serotonin levels.
- Control group: Given a placebo (a harmless substance but believed to be a drug).
- Compare depression symptoms afterward.
- If an SSRI drug (a type of antidepressant) reduces symptoms in the experimental group, it suggests serotonin levels might be causing depression.
- Clinical trials with two groups
But wait! it’s not that simple 🤔
- Speedy Drug, Slow Response
- Drugs impact neurotransmitters super quickly, but behavior change? Not so much.
- Sometimes, it takes weeks! So, serotonin might just be a part of a more complex puzzle.
- Real-world example: It's like when your phone has a problem and you think it's because of low battery. But after charging, it still doesn't work properly. Maybe the real issue is with the software, not just the battery.
- Different Strokes for Different Folks
- Not everyone feels better after taking these drugs.
- The serotonin-depression connection isn't a one-size-fits-all.
- Damage Control
- A theory suggests stress might hurt neurons in the hippocampus (a part of your brain), leading to depression.
- SSRIs might heal these neurons bit by bit, thus easing symptoms.
- Genes are the New Trend
- The serotonin transporter gene 5-HTT is like the backstage crew in a theater. It might decide how likely you are to feel depressed after tough life events.
Unlock the Full Content! 
Dive deeper and gain exclusive access to premium files of Psychology HL. Subscribe now and get closer to that 45 🌟
Psychology HL
Unit 2 - Biological Approach To Behaviour
Unlocking Serotonin's Role In Depression: Myths & Realities
663 words
4 mins read
Last edited on 5th Nov 2024
Table of content
Introduction to serotonin 🧠
- Serotonin: A neurotransmitter that affects mood.
- Relation with major depressive disorder: A condition where someone feels extremely sad, hopeless, and unimportant.
Serotonin hypothesis 📖
- What is it?
- Theory: Low serotonin in the brain causes depression.
- How do they study it?
- Clinical trials with two groups
- Experimental group: Given drugs affecting serotonin levels.
- Control group: Given a placebo (a harmless substance but believed to be a drug).
- Compare depression symptoms afterward.
- If an SSRI drug (a type of antidepressant) reduces symptoms in the experimental group, it suggests serotonin levels might be causing depression.
- Clinical trials with two groups
But wait! it’s not that simple 🤔
- Speedy Drug, Slow Response
- Drugs impact neurotransmitters super quickly, but behavior change? Not so much.
- Sometimes, it takes weeks! So, serotonin might just be a part of a more complex puzzle.
- Real-world example: It's like when your phone has a problem and you think it's because of low battery. But after charging, it still doesn't work properly. Maybe the real issue is with the software, not just the battery.
- Different Strokes for Different Folks
- Not everyone feels better after taking these drugs.
- The serotonin-depression connection isn't a one-size-fits-all.
- Damage Control
- A theory suggests stress might hurt neurons in the hippocampus (a part of your brain), leading to depression.
- SSRIs might heal these neurons bit by bit, thus easing symptoms.
- Genes are the New Trend
- The serotonin transporter gene 5-HTT is like the backstage crew in a theater. It might decide how likely you are to feel depressed after tough life events.
Unlock the Full Content!
Dive deeper and gain exclusive access to premium files of Psychology HL. Subscribe now and get closer to that 45 🌟
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