Psychology SL
Psychology SL
9
Chapters
238
Notes
Unit 1 - Research Methodology
Unit 1 - Research Methodology
Unit 2 - Biological Approach To Behaviour
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 Brainโ€™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 3 - Cognitive Approach To Behaviour
Unit 4 - Sociocultural Approach To Behaviour
Unit 4 - Sociocultural Approach To Behaviour
Unit 6 - Health psychology
Unit 6 - Health psychology
Unit 7 - Pyschology Of Human Relationships
Unit 7 - Pyschology Of Human Relationships
Unit 8 - Developmental psychology
Unit 8 - Developmental psychology
Unit 9 - Internal Assessment
Unit 9 - Internal Assessment
Unit 10 - The IB Curriculum - A Conceptual Model
Unit 10 - The IB Curriculum - A Conceptual Model
IB Resources
Unit 2 - Biological Approach To Behaviour
Psychology SL
Psychology SL

Unit 2 - Biological Approach To Behaviour

Unlocking Secrets: Nervous System & Its Marvelous Mysteries

Word Count Emoji
658 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

Nitty-gritty of the nervous system ๐Ÿง 

  • Behaviour is influenced by our physiology, especially our nervous and endocrine systems.
  • When we talk about the nervous system's structure, think about the physical parts. And when we talk about function, think about what it does!

Neuron party facts ๐ŸŽ‰

  • The nervous system is packed with neurons (nerve cells).
  • Each neuron has
    • A body (soma): The main part of the cell.
    • Dendrites: Think of them as cell's arms grabbing signals.
    • Axon: A long tail that sends signals forward.
  • Neurons meet at places called synapses.
  • Fun fact: the term โ€œsynapseโ€ is derived from Greek, meaning โ€œto join or connect.โ€
  • Each neuron can connect with about 15,000 other neurons. Itโ€™s like each neuron is ultra-popular on "Neurobook"!

Information transfer 101 ๐Ÿ’ก

  • The information is passed both electrically and chemically.
  • Imagine the neuron getting excited. If it gets REALLY excited, it sends a pulse (called an action potential). This is all-or-none, like turning on a switch. No half measures here!
  • Example: This is similar to binary code in computers โ€“ it's all about 0s and 1s.

Chemical connection ๐Ÿ”ฌ

  • Once the pulse reaches the end of the axon, the real chemical magic starts. The axon releases neurotransmitters into the synaptic gap.
  • Think of neurotransmitters as tiny chemical mailmen delivering messages.
  • After their message is delivered, they can be
    • Destroyed (kinda like burning a letter).
    • Pulled back (like getting a letter returned).
    • Or bind to another neuron to pass the message on.

Neurotransmitter types ๐ŸŒˆ

  • Excitatory: These give a thumbs-up and tell the impulse, "Go ahead!"
  • Inhibitory: These say, "Hold up! Not so fast!" and stop the impulse.
  • When these two are out of balance, it can lead to mental disorders.

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IB Resources
Unit 2 - Biological Approach To Behaviour
Psychology SL
Psychology SL

Unit 2 - Biological Approach To Behaviour

Unlocking Secrets: Nervous System & Its Marvelous Mysteries

Word Count Emoji
658 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

Nitty-gritty of the nervous system ๐Ÿง 

  • Behaviour is influenced by our physiology, especially our nervous and endocrine systems.
  • When we talk about the nervous system's structure, think about the physical parts. And when we talk about function, think about what it does!

Neuron party facts ๐ŸŽ‰

  • The nervous system is packed with neurons (nerve cells).
  • Each neuron has
    • A body (soma): The main part of the cell.
    • Dendrites: Think of them as cell's arms grabbing signals.
    • Axon: A long tail that sends signals forward.
  • Neurons meet at places called synapses.
  • Fun fact: the term โ€œsynapseโ€ is derived from Greek, meaning โ€œto join or connect.โ€
  • Each neuron can connect with about 15,000 other neurons. Itโ€™s like each neuron is ultra-popular on "Neurobook"!

Information transfer 101 ๐Ÿ’ก

  • The information is passed both electrically and chemically.
  • Imagine the neuron getting excited. If it gets REALLY excited, it sends a pulse (called an action potential). This is all-or-none, like turning on a switch. No half measures here!
  • Example: This is similar to binary code in computers โ€“ it's all about 0s and 1s.

Chemical connection ๐Ÿ”ฌ

  • Once the pulse reaches the end of the axon, the real chemical magic starts. The axon releases neurotransmitters into the synaptic gap.
  • Think of neurotransmitters as tiny chemical mailmen delivering messages.
  • After their message is delivered, they can be
    • Destroyed (kinda like burning a letter).
    • Pulled back (like getting a letter returned).
    • Or bind to another neuron to pass the message on.

Neurotransmitter types ๐ŸŒˆ

  • Excitatory: These give a thumbs-up and tell the impulse, "Go ahead!"
  • Inhibitory: These say, "Hold up! Not so fast!" and stop the impulse.
  • When these two are out of balance, it can lead to mental disorders.

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Psychology SL. Subscribe now and get closer to that 45 ๐ŸŒŸ

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