An EEG teaching head model is a specialized educational tool used to demonstrate and teach the principles of electroencephalography (EEG) in a classroom or laboratory setting. These models are designed to replicate the structure and features of the human head and scalp, allowing students to practice electrode placement and learn about EEG recording techniques in a simulated environment.

Key features and components of EEG teaching head models may include:

1. **Head and Scalp Anatomy:** The model typically includes a realistic representation of the human head and scalp, complete with features such as hair, skin texture, and cranial landmarks. This provides students with a tactile and visual reference for understanding the anatomy of the scalp and positioning of EEG electrodes.

2. **Electrode Placement Guides:** EEG teaching head models often feature guides or markings indicating the standard electrode placement sites based on established international systems, such as the 10-20 system. These guides help students learn how to accurately position electrodes for recording EEG signals from specific brain regions.

3. **Removable Electrodes:** Some models may include removable or interchangeable electrodes that can be attached to the scalp to simulate EEG recording. This allows students to practice electrode placement and experiment with different recording configurations without the need for a live subject.

4. **Wiring and Connectivity:** The model may include wiring and connectors to simulate the connection of electrodes to an EEG recording device. This helps students understand the electrical circuitry involved in EEG recordings and how signals are transmitted from the scalp to the recording equipment.

5. **Educational Materials:** EEG teaching head models may be accompanied by educational materials such as user manuals, instructional videos, or written guides to help facilitate learning. These materials may provide additional information on EEG principles, recording techniques, and interpretation of EEG data.

Overall, EEG teaching head models serve as valuable educational aids for teaching students about EEG technology, electrode placement, and brain wave patterns. They provide a hands-on learning experience that complements theoretical instruction and helps students develop practical skills for conducting EEG recordings.