Learning and Cognition· Context

Biological factors in cognitive processes

IB Psychology · 2027 Syllabus

Inquiry Question & Thinking Prompt

How does the physical brain influence our cognitive processes?

Learning Objective

To understand the role of localization, neuroplasticity, and neurotransmission in cognition.

📖 Definition / Conceptual Understanding

Biological factors like brain structure, neural networks, and chemical messengers directly underlie cognitive processes. 'Everything psychological is biological'.

⚙️ Mechanism / Explanation

Different brain areas perform specific functions (localization). Learning physically changes brain structure through neuroplasticity.

📌 Other Relevant Information

Acetylcholine is a neurotransmitter heavily involved in learning and spatial memory encoding.

🃏 Scenario Flip Cards

Click a card to reveal the explanation. Each scenario feeds directly into a Paper 1B practice question — use "Practice P1B" to attempt it.

Scenario: A taxi driver developing a larger hippocampus after years of navigating city streets.

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Neuroplasticity: The brain's ability to change its structure in response to learning and experience.

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Scenario: Losing synaptic connections that are rarely used.

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Neural Pruning: The elimination of weaker synaptic connections to optimize neural efficiency.

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Scenario: Experiencing memory impairment after taking a drug that blocks acetylcholine.

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Antagonist Effect: A chemical that blocks a neurotransmitter receptor, reducing its cognitive effect.

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🔬 Common Studies

These studies feed directly into Paper 2B practice questions.

📋 What is Required

Paper 1A— Short answer (4 marks)

Describe the effect of one biological factor on one cognitive process.

View mark scheme

9 marks: Accurate description of a biological mechanism (e.g., neurotransmission) and its effect on cognition.

Paper 1B— Scenario response (6 marks)

Evaluate research on biological factors affecting cognitive processes.

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22 marks: Deep understanding of biological mechanisms and critical evaluation of reductionist approaches.

💬 ATL Discussion & Theory of Knowledge

ATL Discussion Questions

Factual

What is neuroplasticity?

Conceptual

How does biological reductionism help and hinder psychological research?

Debatable

Can all cognitive processes be reduced to biological mechanisms?

Link to Theory of Knowledge

If cognition is purely biological, how can we trust the validity of abstract thought?

🔗 Link to Concepts

Select a concept to explore how it connects to this topic. These connections also feed into Paper 1C practice questions.

Link to Measurement

How are invisible neurotransmission processes measured in living brains?

🧠 Quick Quiz

Which term describes the idea that specific brain areas are responsible for specific functions?

What are chemical messengers that transmit signals across neurons called?

The brain's ability to change and adapt in response to experience is known as:

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