IB Psychology SL

IB Psychology SL explores the scientific study of behavior and mental processes, emphasizing critical thinking and research methods.

Introduction to PsychologyResearch Methods in PsychologyCritical Thinking in Psychology
Biological Approach to Understanding BehaviorCognitive Approach to Understanding BehaviorSociocultural Approach to Understanding Behavior
Applying Psychology to Health and WellbeingUsing Psychological Research in EducationPsychology in the Workplace
Effective Exam PreparationAnswering Short and Long Response QuestionsCritical Evaluation Skills
Introduction to Psyc...Research Methods in ...Critical Thinking in...Biological Approach ...Cognitive Approach t...Sociocultural Approa...Applying Psychology ...Using Psychological ...Psychology in the Wo...Effective Exam Prepa...Answering Short and ...Critical Evaluation ...
Advanced Topics

Biological Approach to Understanding Behavior

Exploring the Brain and Behavior

The biological approach investigates how our brain, nervous system, genetics, and hormones influence our thoughts, feelings, and actions.

Key Concepts

  • Neurons: Nerve cells that transmit signals in the brain.
  • Neurotransmitters: Chemicals that carry messages between neurons.
  • Brain Structure: Different parts of the brain are responsible for different functions.

Real-World Implications

By understanding biology, psychologists can explain behaviors like aggression, memory, and mental health conditions. For example, imbalances in the neurotransmitter serotonin are linked to depression.

Techniques

  • Brain Imaging: Tools like MRI scans help scientists see which areas of the brain are active during certain tasks.

The biological approach is essential for understanding how physical processes shape behavior.

Examples

  • A study uses MRI scans to show which brain areas activate during problem-solving.

  • Research finds that identical twins have similar intelligence test scores.

In a Nutshell

The biological approach links behavior to the brain, genes, and hormones.

Key Terms

Neurotransmitter
A chemical messenger in the brain.
MRI
A brain imaging technique that shows structure and activity.
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Cognitive Approach to Understanding Behavior