Description
Mouse Head fixation system Features | |
Body cover and lid: 102mm L x 34 mm W x 38.5 mm H | |
Head plate default (customizable upon request): Skull plate window 6 mm W x 6 mm L, Overall default dimensions: 15.8 mm L x 24mm W |

Introduction
Head fixation serves as a fundamental procedure in neurological research. Its primary role is to immobilize subjects, thereby facilitating optical assessment of neuronal circuits and reducing background noise and motion artifacts. The head fixation system limits the range of behavioral movements, crucial for studying learning behaviors related to reward and specific motor skills such as eye movements, lever pulling, licking, and engaging in virtual reality scenarios (Weaver et al., 2023).
Moreover, head fixation devices are extensively utilized in neuroscience laboratories for recording neuronal activity through techniques such as calcium imaging and electrophysiology.
The process of head fixation is essential as it influences head and eye movements in response to visual stimuli. Beyond motor reflex studies, head fixation devices are instrumental in training mice for operant conditioning tasks and facilitating differentiation between auditory, visual, and olfactory stimuli.
To implement head fixation, the head bar must be securely attached to the animal’s head, followed by immobilization of the head bar and the subject’s head using an external apparatus. A head hat is also used to protect hardware mounted on the skull.
Apparatus and Equipment
The head fixation system features a metal restrainer platform and removeable lid, allowing for easy movement of the subject. This restrainer ensures superior stability and comfort for the subject throughout the experiment. Thumbscrews allow easy capture and release of the animal.
The default aluminum headplate has a 6 mm x 6 mm skull window and is fixed with M2.5 cross countersunk screws.
Customizations include material composition and dimensions, please enquire
Mazeengineers provide an ergonomically designed head fixation system tailored to research needs.
Data Analysis
The following can be studied using the Rodent Head-Fixation apparatus:
- Drug and anesthesia effects
- Rodent psychophysics
- Rodent fine motor skills such as facial function eg. blinking
- Motor skills such as reflex adaptions and actions
- Neural and biomechanical force production
- Neuroimaging techniques such as Optogenetics
- Electrophysiology
- Operant conditioning
Protocol
Literature Review
Strengths & Limitations
Summary
A head fixation system is employed in neurobiology laboratories to affix mouse heads during several behavioral paradigms.
- A head fixation system comprises a head restrainer pre-mounted on a metallic breadboard.
- It also contains thumbscrews which can be connected to titanium head bars (purchased separately), and a clear acrylic tube to hold the animal during the surgery.
- Head fixation devices are commonly used for studying anesthesia effects, facial function, neuroimaging, reflex adaptation, operant conditioning, and reflexes such as eye blinking in mice.
References
Guo, Z. V., Hires, S. A., Li, N., OāConnor, D. H., Komiyama, T., Ophir, E., ⦠& Svoboda, K. (2014).Ā Procedures for Behavioral Experiments in Head-Fixed Mice.Ā PLoS ONE,Ā 9(2).
Hughes, R. N., Bakhurin, K. I., Barter, J. W., Zhang, J., & Yin, H. H. (2020).Ā A head-fixation system for continuous monitoring of force generated during behavior.Ā Frontiers in integrative neuroscience,Ā 14, 11.
Schwarz, C., Hentschke, H., Butovas, S., Haiss, F., Stüttgen, M. C., Gerdjikov, T. V., ⦠& Waiblinger, C. (2010).Ā The head-fixed behaving ratāprocedures and pitfalls.Ā Somatosensory & motor research,Ā 27(4), 131-148.
Weaver, I. A., Yousefzadeh, S. A., & Tadross, M. R. (2023).Ā An open-source head-fixation and implant-protection system for mice.Ā HardwareX,Ā 13, e00391.