20.1: Appendix A- Methods Last updated Feb 28, 2025 Save as PDF 20: Appendix 21: Answer Key Page ID237071 OpenStaxOpenStax ( \newcommand{\kernel}{\mathrm{null}\,}\) Transmission Electron Microscopy Access multimedia content Magnetic Stimulation Access multimedia content Sleep Studies and EEG Technology Access multimedia content Optogenetics Access multimedia content Calcium Imaging Access multimedia content Immunohistochemistry and Fluorescence Microscopy Access multimedia content Functional MRIs (fMRI) Access multimedia content The Science of EEGs Access multimedia content Deep Brain Stimulation Access multimedia content Chemogenetics Access multimedia content Electrophysiology Access multimedia content Lesions Access multimedia content Transgenic Models Access multimedia content