In this episode, Dr. Kai Miller (Neurosurgery) and Dr. Bryan Klassen (Neurology) from Mayo Clinic dive into the basics of microelectrode recording (MER) and its position in deep mind stimulation (DBS) surgical procedure. They break down: Why Microelectrode Recording Still Matters, MRI How MER Works, Mapping the Brain During Surgery, What Surgeons Listen For, Why This Matters for Patient Outcomes, and The Human Element
0:00 Introduction to DBS Microelectrode Recording
0:19 Why MER Remains Relevant in Modern DBS
0:52 Key Atlases and Foundational MER Resources
1:24 MER as Complement to Advanced Imaging
1:48 DBS Targeting Workflow and Trajectory Overview
2:33 Exploratory vs. Confirmatory MER Approaches
3:55 Ven Gun Device and Trajectory Planning
4:39 Avoiding Token MER and Ensuring Clinical Utility
4:50 Understanding Neuronal Signals and Spike Filtering
6:17 Identifying Brain Structures Through Firing Patterns
7:26 Thalamic Mapping for Movement and Sensory Function
8:38 Adjusting Trajectories Relative to Internal Capsule
10:00 Importance of Depth with Segmented DBS Leads
11:13 Using MER to Align Electrode with Optimal Activity
13:48 Confirming Borders Through Characteristic Cell Patterns
15:45 Optic Tract Testing with Light‑Evoked Responses
17:21 Patient Interaction and Functional Movement Testing
20:02 Movement and Tremor‑Linked Neural Modulation Examples
21:36 Core Purposes of MER and Closing Remarks
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