IB Psychology Standard Level

This subject is broken down into 27 topics in 8 modules:

  1. Biological approach to understanding behaviour 3 topics
  2. Cognitive approach to understanding behaviour 3 topics
  3. Sociocultural approach to understanding behaviour 3 topics
  4. Approaches to researching behaviour 6 topics
  5. Abnormal psychology 3 topics
  6. Developmental psychology 3 topics
  7. Health psychology 3 topics
  8. Psychology of human relationships 3 topics
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  • 8
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  • 27
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  • 9,658
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  • 1+
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This page was last modified on 28 September 2024.

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Psychology

Biological approach to understanding behaviour

The brain and behaviour

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The brain and behaviour

The Brain and Behaviour

Brain Structures and their Functions

  • Cerebral cortex: The outermost layer of the brain involved in various higher cognitive processes like memory, attention, and consciousness.
  • Corpus callosum: Connects the two hemispheres of the brain and allows them to communicate with each other.
  • Hippocampus: Involved in the formation of new memories.
  • Amygdala: Associated with experiences of fear and other emotions.

Brain Plasticity

  • Neuroplasticity: The brain's ability to reorganise itself by forming new neural connections throughout life.
  • Synaptic pruning: A process whereby the brain eliminates extra synapses.
  • Critical periods: Specific times during early development when the brain is particularly susceptible to environmental influences.

Neurotransmitters and Behaviour

  • Serotonin: Influences mood, impulsiveness, and aggression. Low levels are associated with depression.
  • Dopamine: Plays a critical role in the way our brain controls our movements and is implicated in diseases like Parkinson's. It's also connected to reward and pleasure systems.
  • Acetylcholine: Involved in learning and memory. Diminished function is associated with Alzheimer's disease.

Hormones and Behaviour

  • Adrenaline: Produced in response to stress and increases heart rate, blood pressure, and energy supplies.
  • Cortisol: Released in response to stress and low-glucose concentration.
  • Oxytocin: Promotes bonding and trust, released during social contact and intimacy.

Genetic Influences on Behaviour

  • Genetic predisposition: An individual's inherited tendency to have certain behaviours, diseases or traits.
  • Heritability: The proportion of variation among individuals that can be attributed to genes.
  • Genes and behaviour: Multiple genes often work together to determine behaviour, a concept known as polygenic inheritance.

Brain Imaging Techniques

  • MRI (Magnetic Resonance Imaging): A type of brain scan that uses a strong magnetic field and radio waves to create detailed images of the brain.
  • fMRI (Functional Magnetic Resonance Imaging): Measures brain activity by detecting changes associated with blood flow.
  • PET Scan (Positron Emission Tomography): Injects a radioactive substance into the blood and monitors its flow and usage in the brain.
  • CT Scan (Computed Tomography): Uses a series of X-ray images to create detailed pictures of the brain.

Remember, any of these points are potentially exam-worthy, so focus your revision carefully.

Course material for Psychology, module Biological approach to understanding behaviour, topic The brain and behaviour

Psychology

Approaches to researching behaviour

Drawing conclusions

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Drawing conclusions

Understanding Drawing Conclusions

  • Drawing conclusions in research refers to the interpretation of the data that has been collected.
  • It involves making inferences, forming judgments and making decisions.
  • Researchers should make concluding statements based on what the data reveal or suggest.
  • Conclusions should be a reflection of the research questions and objectives.

Steps in Drawing Conclusions

  • Summarise findings: The first step in drawing conclusions is to summarise the main findings of the study. The findings are a summary of the data obtained.
  • Interpret results: Interpret the results of the study. Your interpretation must be based upon the research question and the results of your analysis.
  • Compare with previous research: Any conclusion should also compare the findings with those from previous research. It is important to place your findings within the context of the larger body of research.
  • Formulate explanations: Formulate plausible explanations for the findings. Researchers should seek to understand why the results happened as they did based on the data collected.

Significance of Conclusions

  • The significance of conclusions can be found in their capacity to suggest new directions for future research.
  • Conclusions should shed light on the research problem, filling gaps in current knowledge.
  • It's important to note the limitations of your conclusions, as they are bound by the methods and data of your study.

Potential Pitfalls in Drawing Conclusions

  • Overgeneralisation: Drawing conclusions that are too broad for the data provided is risky and may jeopardise the trustworthiness of the research.
  • Ignoring conflicting data: Researchers should not overlook or dismiss contradictory evidence. All data, even that which does not support the hypothesis, should be acknowledged.
  • Drawing conclusions not supported by data: The conclusions drawn should be supported by the facts presented in the study.
  • Researcher bias: Personal beliefs and inclinations can potentially interfere with the conclusion-drawing process. Researchers must aim to be as objective as possible.

Reviewing Conclusions Made By Others

  • When evaluating others' research, be critical of the conclusions made.
  • Examine the methodology used and the scope of the data. Are the conclusions appropriate given these factors?
  • Look for potential bias or subjectivity in the conclusions.
  • Consider alternative conclusions that could be drawn from the same data.
  • Ensure that the conclusions answer the original research question and objectives.

Course material for Psychology, module Approaches to researching behaviour, topic Drawing conclusions

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