Response Levers

Product Number: H21-03M & H21-03R

The response levers are designed for small mammals. The H21-03R is suitable for rats, as well as squirrel monkeys and H21-03M for mice. The switch is a high-reliability, sealed unit. The –03R paddle extends .75-inch past the front panel and the -03M .33-inch. Both are made of rugged chew-proof stainless steel. The minimum actuat­ing force of the H21-03R is 25 G, and the H21-03M is 4 G.

Retractable Levers

Product Number: H23-17M & H23-17RA

These levers incorporate the same switch, force, and throw characteristics as their fixed counterparts. The units feature a re­traction time of less than 500 milliseconds.

Nose Poke

H21-10

Product Number: H21-09 & H21-10

H21-09M

The H21-09M Nose Poke Operandum for mice has a 5/8 inch diameter entrance hole.  The unit includes individually controlled red, amber, and green LED cue lights recessed from the front panel.  The inside chamber is white, reflective ABS plastic to scatter the cue light making it visible from a side view.  Response detection is by an invisible (940 nM) infrared photo beam across the opening.  A gaseous olfactory stimulus connection is affixed to the chamber.

H21-09R

The H21-09R Nose Poke Operandum for rat has a one inch diameter entrance hole.  The unit includes individually controlled red, amber, and green LED cue lights recessed from the front panel.  The inside chamber is white, reflective ABS plastic to scatter the cue light making it visible from a side view.  Response detection is by an invisible (940 nM) infrared photo beam across the opening.  A gaseous olfactory stimulus connection is affixed to the chamber.

H21-10

Nose Poke Light Intensity Controller (1 per Nose Poke Operandum)

Five Hole Nose Poke Walls

Product Number: H21-06M, H21-06R, H21-06M-W, H21-06R-W, H21-06M/R, & H21-06M/R-W

Developed as an interchangeable module for our standard Mouse- and Rat-sized testing cages, the Five-Choice Nose-Poke Response Walls can be ordered with Tri-Colored CUE Lights or variable intensity White CUE Lights (-W).  Odor-Injection Ports can be installed quickly and easily. These walls instantly and affordably upgrades any existing cage to one capable of implementing variations of a five choice serial reaction task. Besides detecting the nose-poke response, either seven different visual cues (combinations of Red, Yellow, and Green LEDs) or varying levels of a white cue are available in each hole. An odor- or air-delivery port is also included inside each hole to allow for the presentation of olfactory stimuli.  Mouse Nose Poke Walls for the Rat Test Cage (M/R) are also available with either the Tri-Colored Cue Lights (M/R) or the Variable Intensity White Cue Lights (M/R-W)

Optical Lickometers

H24-01M & H24-01R

H24-01-TB-01

Product Number: H24-01M, H24-01R, H24-01-TB-01,  H24-01-TB-03, & H20-94

H24-01M & H24-01R:

US PATENT No. 4373471

The Optical Lickometer is used to measure licking/drinking from a standard drinking tube.  It requires a Photocell Sensor (H20-93, H20-93A, or H20-94).  The sensor's LED emitter and receiver are mounted on either side of the module.  The light beam is "piped" via glass rods across a gap a the end of the tube.  The animal's tongue breaks the beam on each lick.

The drink tube is electrically isolated from the rest of the module.  Aversive shock may be delivered through the drink tube.  Licks may be measured while shock is being delivered without spurious current paths or interference.

Twenty-five licks per second can be recorded with a formed meniscus or when the animal is sucking even in moderately dense, translucent liquids.

Ceiling Mount Infrared Activity Detector

H24-61

H24-61MC

Product Number: H24-61 & H24-61MC

The H24-61 Ceiling Mount Activity Monitor utilizes infrared technology for precise tracking of your test subjects. This monitor readily mounts on top of all of our test cages using a standardized ceiling hole array. The wide field of view will detect animals while rearing or leaning on a wall. It can see both rats and mice in this posture and senses movement at any elevation in the cage. An optional drop-ceiling kit is available (H24-61-MC) for increasing the sensitivity on smaller or mouse-sized cages. For flexibility in defining the response for program control and data acquisition purposes, a selector switch permits the user to choose either of two output modes. You may choose movement units (brief pulses representing the minimum resolution of detection), or movement episodes (a continuous output for the entire duration that movement units occur with inter-event intervals of less than 400 milliseconds

Ceiling Mount Bump Rod

Product Number: H25-06

This unit mounts on the ceiling of the test cages, the shuttle cages, and the hexa­gon, octagon or dodecagon hubs in the same manner as the chain. It reports a re­sponse any time the stainless steel rod is moved off plumb in any direction. It comes down to within one inch of the floor in the test cages and shuttle cages. It may be cut for use in the hubs.

Product Number: H25-01

The Ceiling Chain mounts on top of the test cages, the shuttle cages, and the hexagon, octagon or dodecagon hubs. It may be used as a simple operant for es­cape or positive reinforcement.

Product Number: H21-15R, H21-17R, H21-19R, & H21-15-RP

H21-15R

The H21-15R Pecking response key is fabricated from transparent plastic and fitted with travel adjustment screws.  This key is backed by a rear projection screen.  The switch is a sealed, highly reliable microswitch type. The minimum force required to actuate the key is 13 G.

H21-19R

The H21-19R Pecking Response Key is fabricated from transparent plastic and fitted with travel adjustment screws.  This key includes a 7-pattern visual cue that is controlled from the triple cue connector on the Environment Connection Board.

The switch is a sealed, highly reliable microswitch type. The minimum force required to actuate the key is 13 G.

H21-15-RP

A fabricated transparent plastic replacement paddle for the H21-15R, H21-17R, and H21-19R Bird Pecking Keys.

Contact Sensor

Product Number: H24-05

The Contact Sensor is an electronic switch that senses the passage of a very low current through the subject.  The current level is less than 5 microamps and is well below sensation threshold.  The standard response connector on the unit connects to any switch input on the ECB just as do levers, photo cell sensors, pecking keys, etc.

The sensing leads may be connected to any two conducting parts of the environment.  When the subject touches both, completing the circuit, the switch reports the response.  This device may used to sense animal contact with novel stimulus devices mounted on a module panel.

Note: The contact sensor is not the optimal method for sensing contact with a drink tube.  A photocell sensor with the Optical Lickometer (H24-01M or H24-01R) is recommended.  When the subject makes contact with the lick tube, a meniscus bridge is formed between the tube and the subject.  The contact sensor will detect a single "lick".  The Optical Lickometer will detect the movement of the subject's tongue providing a record of the number of licks.  The Optical Lickometer also eliminates the problem of disengaging the Contact Sensor in a Vogel Procedure.  Since there is no electrical contact between the photo cells and the lick tube, shock can be delivered directly through the lick tube.