About Med
Training and Demo Facility
Contract Preclinical Research
Supporting the
Scientific Community
Meetings
MedLines Archive
Contact Us
Recent Publications
by Med Scientific Staff
  Current Med Citations
Search this SIte
New Products
Upcoming Products
Sales
International Sales Representatives
Medstate Notation™ Repository
Researcher's Round Table
Jobs
Policies and Procedures



Open Field Activity


General Features

ENV-515

ENV-515
Test Environment with Special Height Adjustment Posts

Shown in an ENV-017M sound attenuating cubicle with ENV-027 slideout shelf. Contact Sales for more information on the latest options.

System Features:

  • All experiments and subject data are entered into a database, with all subject data linked together. This allows the software to track everything, from automatically sequencing sessions to using the researcher's selection of available data parameters, and save it based on the assigned Subject ID.
  • Up to a 50 ms scanning rate. This rate virtually eliminates phasing or aliasing of the stereotypic movement data and provides the highest resolution possible.
  • All standard data are displayed in real time along with a cumulative plot of the subject's activity for all chambers.
  • Experiment setup is made easier with a one screen setup, and allows one to choose the size of the chamber, thus allowing for distance traveled to be in real units (i.e., inches or centimeters) instead of beams broken.
  • Automated file naming uses experiment, group and subject information to generate datafiles since all session data are automatically appended to existing data files. If you prefer, however, you can always choose a custom filename.
  • Newly added rotational analysis option. You can choose to examine large (wide) or small (pivotal) rotations, allowing for rotational measures to be obtained on staggering, ataxic, lesioned, or other locomotor impaired mice or rats.
  • The Windows-based software includes improved zonal analysis, the ability to change boundaries around the animal in post analysis, and the addition of velocity and ambulatory episodes. This can be done with saved data at any time. 

    < back to top>

Test Environment for Rat

MED-OFA-RS

MED-OFA-RS
Open Field Starter Package for Rat

This package will get you started making general activity measurements. This package includes a test environment (ENV-515) that measures 17.0" x 17.0" (43.2 cm x 43.2 cm), three 16 beam I/R arrays, 48 channel control, cables, interface card, power supply, and single station software. Up to eight test stations may be attached to a single computer. Computer sold separately.

MED-OFA-515
Additional Test Chamber for Rat

Test Environment for Mouse

MED-OFA-MS
Open Field Starter Package for Mouse

This package will get you started making general activity measurements. This package includes a 10.75" x 10.75" (27.3 cm x 27.3 cm) test environment with three 16 beam I/R arrays, 48 channel control, cables, interface card, power supply, and single station software. Up to eight test stations may be attached to a single computer. Computer sold separately.

MED-OFA-510
Additional Test Chamber for Mouse

Activity Accessories

MED-OFA-017
Sound Attenuating Cubicle Package for ENV-515

This sound isolation package features an MDF sound attenuating cubicle with peep (ENV-017M, 26" W x 22" H x 22" D), two ceiling lights (ENV-221CL), and a pull out drawer (ENV-027) option. A 28 V DC power supply is required. Please contact Sales for a power supply to fit your needs.

MED-OFA-022
Sound Attenuating Cubicle Package for ENV-510

This sound isolation package features an MDF sound attenuating cubicle with peep (ENV-022M, 22" W x 15" H x 14" D), one ceiling light (ENV-221CL), and power cable, and a pull out drawer (ENV-027) option. A 28 V DC power supply required. Please contact Sales for a power supply to fit your needs.

ENV-515T

ENV-515T
Ventilated Cover for Open Field for Rat

ENV-510T
Ventilated Cover for Open Field for Mouse

Clear polycarbonate tops for the ENV-515 or ENV-510 test chambers.

ENV-517

ENV-517
Two Chamber Place Preference Insert for Open Field Activity for Rat

ENV-512
Two Chamber Place Preference Insert for Open Field Activity for Mouse

Two chamber place preference is used for conditioned place preference paradigms. The two chamber place preference insert is simply a box that slides into the open field chamber. This insert covers the entire area of the chamber. The two sides of the box have been designed to provide distinct tactile environments to maximize contextual differences. One side of the box has a wire mesh floor while the other side has a grid rod floor. Since the walls are clear, different color and design patterns may be added between the wall of the insert and the wall of the test chamber as long as they do not block the photobeams. The lid is hinged to allow easy subject insertion and removal. A manual guillotine door can be inserted to block the arched doorway during conditioning that would normally allow the subject to pass freely between the two sides during testing. The open field activity software can parse the session data into zones to determine the number of entries into each chamber and the amount of time that a subject spends in each area.

ENV-516

ENV-516
Dark Box Insert for Open Field Activity for Rat

ENV-511
Dark Box Insert for Open Field Activity for Mouse

The dark box insert is opaque to visible light and designed to cover half the area of the open field activity chamber. The two-compartment light/dark test, one of the classic indices of anxiety, can now be fully automated and performed while examining other components of locomotor activity. The time spent in the lit area and the associated exploratory behaviors are reliable parameters for assessing anxiolytic-like activity and may be useful for identifying anxiolytic and anxiogenic agents.

The Med Associates activity software can parse the data of a session into zones and determine the amount of time that a subject spent in both areas as well as the number of entries into each. Patterns of exploration can be examined by viewing the subject’s plot. The dark box insert is available for the standard mouse (ENV-510) and rat (ENV-515) chambers.

< back to top>

 

 





   
Site Updated: March 11, 2010  
 © Copyright Med Associates Inc., 1998-2009. All Rights Reserved
www.med-associates.com