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 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 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

Unlock Brain Mysteries: PET vs. EEG Explained!

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

Table of content

Positron emission tomography (PET) 🚀

  • What is it?

    • It's like the fMRI but with a fancy radioactive twist!
    • Measures brain activity through blood flow.
  • How does it work?

    • You get a radioactive tracer that loves the glucose in your brain.
    • Tracer gets into your blood and starts to decay (it doesn't last long!)
    • More brain activity = More blood supply = More tracer in that part!
  • Pros of PET

    • Spatial Superstar: It can spot differences up to about 4 mm in the brain.
    • Great for finding bad guys like tumours or understanding dementias.
    • Tiny Tech: PETs can be as small as a hat for a rat! (RatCAP 🐭🎩)
  • Cons of PET

    • Temporal Trouble: Can't catch quick brain processes (30-40 seconds delay).
    • Radios in the Brain: Involves radioactive stuff, which isn’t everyone’s cup of tea.
    • fMRI Flex: With fMRI around, PET's popularity is going down.
  • Real-world example: Imagine a nightclub (your brain). The radioactive tracer is like glow-in-the-dark stickers. People dancing more (active brain parts) need more stickers!

Electroencephalography (EEG) 🎸

  • What is it?

    • Measures brain's electric jams 🎶.
    • Neurons = Band members. When they play together (synchronously), you can hear it outside the club (your skull).
  • How does it work?

    • Tiny electrodes, like little headphones, listen to your brain’s jams from the scalp.
    • These jams become the electroencephalogram!
  • Pros of EEG

    • Temporal Rockstar: It catches the beats instantly.
    • Budget Buddy: Won’t empty your pockets.
    • Mobility Magic: Unlike the 1 ton fMRI beast, EEG is the lightweight champ.
    • Silent Singer: No noise, great for studying responses to sound. (fMRI is that loud guitarist everyone complains about.)
    • Safety First: Completely non-invasive.
  • Cons of EEG

    • Spatial Struggle: It's like hearing a concert from a mile away.
    • Deep Dive Dilemma: Not great for listening to the deep songs (subcortical areas).
    • Noise Nuisances: Random sounds (heartbeats, blinks, bad connections) can crash the concert.
  • Real-world example: EEG is like having a radio that can instantly catch and play all the latest hits, but sometimes, there's a bit of static interference.

🌟 Final Tip! Knowing the strengths and weaknesses of these methods helps you understand when researchers would choose one over the other. Always think of the purpose and the trade-offs!

 

Happy Studying! 🌈📚🧠🎉

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

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

Unit 2 - Biological Approach To Behaviour

Unlock Brain Mysteries: PET vs. EEG Explained!

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

Table of content

Positron emission tomography (PET) 🚀

  • What is it?

    • It's like the fMRI but with a fancy radioactive twist!
    • Measures brain activity through blood flow.
  • How does it work?

    • You get a radioactive tracer that loves the glucose in your brain.
    • Tracer gets into your blood and starts to decay (it doesn't last long!)
    • More brain activity = More blood supply = More tracer in that part!
  • Pros of PET

    • Spatial Superstar: It can spot differences up to about 4 mm in the brain.
    • Great for finding bad guys like tumours or understanding dementias.
    • Tiny Tech: PETs can be as small as a hat for a rat! (RatCAP 🐭🎩)
  • Cons of PET

    • Temporal Trouble: Can't catch quick brain processes (30-40 seconds delay).
    • Radios in the Brain: Involves radioactive stuff, which isn’t everyone’s cup of tea.
    • fMRI Flex: With fMRI around, PET's popularity is going down.
  • Real-world example: Imagine a nightclub (your brain). The radioactive tracer is like glow-in-the-dark stickers. People dancing more (active brain parts) need more stickers!

Electroencephalography (EEG) 🎸

  • What is it?

    • Measures brain's electric jams 🎶.
    • Neurons = Band members. When they play together (synchronously), you can hear it outside the club (your skull).
  • How does it work?

    • Tiny electrodes, like little headphones, listen to your brain’s jams from the scalp.
    • These jams become the electroencephalogram!
  • Pros of EEG

    • Temporal Rockstar: It catches the beats instantly.
    • Budget Buddy: Won’t empty your pockets.
    • Mobility Magic: Unlike the 1 ton fMRI beast, EEG is the lightweight champ.
    • Silent Singer: No noise, great for studying responses to sound. (fMRI is that loud guitarist everyone complains about.)
    • Safety First: Completely non-invasive.
  • Cons of EEG

    • Spatial Struggle: It's like hearing a concert from a mile away.
    • Deep Dive Dilemma: Not great for listening to the deep songs (subcortical areas).
    • Noise Nuisances: Random sounds (heartbeats, blinks, bad connections) can crash the concert.
  • Real-world example: EEG is like having a radio that can instantly catch and play all the latest hits, but sometimes, there's a bit of static interference.

🌟 Final Tip! Knowing the strengths and weaknesses of these methods helps you understand when researchers would choose one over the other. Always think of the purpose and the trade-offs!

 

Happy Studying! 🌈📚🧠🎉

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 🌟

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