Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2019 Mar 4;20:8. doi: 10.1186/s12868-019-0490-z

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

PMC Copyright notice

Fig. 4 — Elements of the swivel balance arms. A The standard swivel consists of a center rotating spindle and six conductor rings in electrical contact via conductor brushes. The used swivel accommodates the EEG cable carrying electrical signal from the 6 electrodes implanted in each rat. It has a low torque turning resistance preventing torsion of the EEG cable and subsequent stress on the rat’s headset. This standard swivel prevents cable disconnection by allowing torsion-free motion of the rat in the horizontal plane. The curved white arrows indicate the rotating mobile part. B The swivel is fixed on a balance that consists of a plexiglass rectangular plate (30 cm × 5 cm) that pivots along a hinge plexiglass plate (10 cm × 5 cm, double arrows). The EEG cable ending with the 6-pin plug goes through the swivel and ends up in a relay box that separates the reference and ground signals (RCA plug, white arrow) from those of the 4 sampling electrodes. C The hinge plate is attached to the back of the plexiglass cage rack (area between the 2 dashed lines) with 2 plastic screws (white arrow). The relay box is attached to an RCA cable (carries signal from ground and reference electrodes) and to an ethernet cable on the opposite side (carries electrical signal from the 4 sampling electrodes)