Psychology SL
9
Chapters
238
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
Unit 3 - Cognitive Approach To Behaviour
Unit 4 - Sociocultural Approach To Behaviour
Unit 6 - Health psychology
Unit 7 - Pyschology Of Human Relationships
Unit 8 - Developmental psychology
Unit 9 - Internal Assessment
Unit 10 - The IB Curriculum - A Conceptual Model
Psychology SL
Unit 2 - Biological Approach To Behaviour
Evolution & Psychology: A Deep Dive Into Human Behavior
672 words
4 mins read
Last edited on 5th Nov 2024
Table of content
What's evolution anyway? 🌍
- Evolution = how organisms change over generations due to heritable trait changes. It’s not just random!
- Think of Charles Darwin. His theory + genetic discoveries = modern evolutionary theory.
Key points of evolutionary theory 🔑
- 🌱 Organisms want to survive & make babies!
- 🌼 Every organism is unique even in the same family. Some traits help them thrive better in their environment. We call this differential fitness.
- 🏆 Real-world example: Think of a cheetah. Faster cheetahs catch more food and live longer. Slower ones? Not so lucky.
- If you’re fit for your environment, you'll likely live long & have many kids. That’s survival of the fittest.
- 🧬 Over time, unfit organisms' genes fade away. The fit ones have more babies, making their genes popular in the gene pool! This process = natural selection.
- 🌿 Real-world example: Imagine green bugs and brown bugs. Birds can see the green ones easier on brown trees, so they get eaten more. Over time, more brown bugs survive and reproduce, and there are fewer green ones.
Why does evolution matter?
- Evolution explains why we have so many species & why they look and act the way they do.
- Ever thought why humans and chimps seem alike? 🐵 Our DNA is 98% similar! We also share 90% with cats, 69% with rats, and even 60% with chickens & fruit flies.
- 💡 This means studying animals can help us understand human behavior!
Unlock the Full Content! 
Dive deeper and gain exclusive access to premium files of Psychology SL. Subscribe now and get closer to that 45 🌟
Psychology SL
Unit 2 - Biological Approach To Behaviour
Evolution & Psychology: A Deep Dive Into Human Behavior
672 words
4 mins read
Last edited on 5th Nov 2024
Table of content
What's evolution anyway? 🌍
- Evolution = how organisms change over generations due to heritable trait changes. It’s not just random!
- Think of Charles Darwin. His theory + genetic discoveries = modern evolutionary theory.
Key points of evolutionary theory 🔑
- 🌱 Organisms want to survive & make babies!
- 🌼 Every organism is unique even in the same family. Some traits help them thrive better in their environment. We call this differential fitness.
- 🏆 Real-world example: Think of a cheetah. Faster cheetahs catch more food and live longer. Slower ones? Not so lucky.
- If you’re fit for your environment, you'll likely live long & have many kids. That’s survival of the fittest.
- 🧬 Over time, unfit organisms' genes fade away. The fit ones have more babies, making their genes popular in the gene pool! This process = natural selection.
- 🌿 Real-world example: Imagine green bugs and brown bugs. Birds can see the green ones easier on brown trees, so they get eaten more. Over time, more brown bugs survive and reproduce, and there are fewer green ones.
Why does evolution matter?
- Evolution explains why we have so many species & why they look and act the way they do.
- Ever thought why humans and chimps seem alike? 🐵 Our DNA is 98% similar! We also share 90% with cats, 69% with rats, and even 60% with chickens & fruit flies.
- 💡 This means studying animals can help us understand human behavior!
Unlock the Full Content!
Dive deeper and gain exclusive access to premium files of Psychology SL. Subscribe now and get closer to that 45 🌟
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