Module 10: Hypothesis Testing and Circuit Function

Explore how neuroscientists formulate and test hypotheses about neural circuits using both biological and computational tools.

🧐 What is a Hypothesis?

A hypothesis is a testable prediction about a biological process. In connectomics, hypotheses often relate to how specific circuits enable computation or behavior.

  • Difference between descriptive questions and mechanistic hypotheses
  • Operational definitions and falsifiability
  • Examples from published neuroscience studies

🔢 Designing Experiments

Hypothesis-driven research requires careful planning. This includes defining variables, controls, and outcome measures that meaningfully reflect circuit function.

  • Independent vs. dependent variables
  • Experimental vs. observational studies
  • Confounds and sources of bias

📈 Testing and Interpretation

We explore logic-based approaches, simple statistics, and model-based reasoning to interpret data and draw conclusions.

  • Statistical power and sample size considerations
  • Understanding p-values and confidence intervals
  • Replicability and interpretation frameworks

🌍 COMPASS Integration

  • Knowledge: Principles of experimental design
  • Skills: Statistical reasoning, logic, conceptual clarity
  • Character: Scientific humility, rigor, honesty
  • Meta-Learning: Learning from failed hypotheses

📚 References & Resources

  • Popper, K. (1959). The Logic of Scientific Discovery
  • Ioannidis, J. (2005). Why Most Published Research Findings Are False. PLoS Medicine
  • Curran-Everett, D. (2000). Statistics 101. Advances in Physiology Education

✅ Assessment

  • Given a hypothesis, design a testable experiment and identify the key variables
  • Evaluate a flawed experiment and suggest improvements
  • Interpret mock experimental results in light of the hypothesis