Lafayette Instrument 81335C User manual

User’s Manual
Fax: [phone] . www.lafayetteinstrument.com . [e-mail]
Model 81335C
3700 Sagamore Parkway North
Lafayette, IN 47904 USA
Tel: [phone] • [phone]
Fax: [phone]
[e-mail]
www.lafayetteinstrument.com
© 2003 by Lafayette Instrument Company, Inc. All Rights Reserved-Rel. 6.16.06
Operant Conditioning Console
User’s Manual
MAN510

PO Box 5729 Lafayette, IN 47903 USA . Tel: [phone]
Operant Conditioning Console
System Description
System Specications
Setup Instructions
Summary of controls
Abbreviations
Using the Test Menu
Magazine Training – Step by Step use of the Menu Setup Displays
Schedule Descriptions:
Magazine Training
Partial Reinforcement
Fixed Ratio
Variable Ratio
Fixed Interval
Variable Interval
Discrimination 2
Discrimination 4
Dierential Reinforcement of Low Response Rates
Dierential Reinforcement of High Response Rates
Chain
Avoidance
Escape
Auxiliary Output Control
Standard Wire Connections
Notes
Terms and Conditions
Table of Contents
System Description
The 81335C Behavioral Control Console is a fully integrated animal-learning/operant conditioning control
instrument used primarily for student laboratory studies. All schedules can be easily programmed and
implemented in a variety of environments. Manual shaping activation is provided and student participation
encouraged with front panel display of counters, latency timers where appropriate, and schedule settings.
The 81335C Behavioral Control Console features a 20 x 2 character LCD display screen, membrane touch
controls, and rear panel connections. The complete behavioral control package includes a 30 V DC Power
Supply, Shaping Push Button, 10’ Cage Connection Cable (81406-10), and 81409 Mini I/O Module.
The 81335C has the capability to be used with the following devices:
Pellet Dispenser 80208 and 80209 series **
Liquid Dispenser 80201 **
Omnidirectional Rod 80111
4 Press Bars 80110
4 Nose Pokes 80116O, 80116OR, 80116S
4 Stimulus Lights 80221
4 Control Stimulus Tones 80223
4 Auxiliary Outputs Refer to Auxiliary Output Control
Air Pu Stimulus Contact Lafayette Instrument Company
** Other devices such as pumps, grain feeders, etc. may also be connected to the outputs designated for
“pellet” and “liquid” dispensers as long as they can operate on 28 V DC and draw no more than 1 amp.
The pulse duration is adjustable in the schedule set-ups to meet the needs of most devices.
2

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Table of Contents
3
30VDC 2A Power Supply @ 120/240VAC 50/60Hz
2A Slow-Blow (internal)
Internal 0-2.4 ma @ 0-225V AC
(Not useable in non-shock versions of 84025 Series Animal Learning Systems)
5 Chamber Connections, 1 Shaping Pushbutton
8 Chamber Connections, 4 Auxiliary (rear panel), Shock, +28VDC and GND
System Specications
Power:
Fuse:
Shock:
Inputs:
Outputs:
Setup Instructions for Model 81335C
1. All Lafayette Instrument systems are shipped factory assembled for immediate operation. Connect
the supplied DB-25 cage connection cable between the chamber mini I/O module and the 81335C
Control. Connect the shaping push button to the back panel of the control. If the shock grid will be
used, connect its supplied cable to the back panel of the control.
2. Auxiliary connections 1-4 may be used for further manipulation. Additional instructions for the use of
these connections are explained within the auxiliary output control section of this manual.
3. The setup for chamber accessories such as a pellet dispenser is covered in separate instructions as
appropriate.
4. Connect the power supply output to the rear panel connection on the control unit and the power
cable to any suitable grounded outlet. The 81335C can operate on 110VAC to 240VAC using its’
supplied power supply.
5. Turn power on to the 81335C.

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Operant Conditioning Console
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Summary of Controls
Reset Within Schedule Setup:
Press once, the unit will be reset to the schedule selection menu.
Within Schedule Operation:
Press once, the unit will pause operation, outputs are turned OFF and input counts are
disabled.Press the RUN control to return selected outputs to the ON State and continue
schedule operation. Ratio Counters, Interval Timers, etc. reset to a value of 0.
Press twice, the unit will exit the schedule (remember to record data rst) and be reset to
the schedule selection menu.
Within Test Menu:
Press once, the unit will be reset to the schedule selection menu.
Run Within Schedule Setup:
“PRESS RUN TO BEGIN” is displayed at the end of each schedule set up. Schedule operation
begins immediately when RUN is pressed, except for Avoidance and Escape which require
a shaping button activation to start a trial after RUN is pressed
Within Schedule Operation:
Press once to resume schedule operation after being paused.
Within Test Menu:
Not used except to begin the PEL, LIQ, SHK, & AIR Series of tests.
Scroll up Within Schedule Selection Menu:
Press once to move up to the test menu from the rst item, magazine training, on the
schedule selection list. Press again and it will go to the end of the list. After scrolling down
it will scroll up to see the previous schedule selection.
Within Schedule Setup:
Pressed once to change a selection status from “N” to “Y”, or to increase the numerical
value of a ratio, interval, or intensity setting. Press quickly to increment values by 1 unit,
hold to run up the value to the maximum.
Within Schedule Operation:
Use with Scroll Down to view dierent data display screens.
Scroll down Within Schedule Selection Menu:
Press once to move down to the next schedule on the schedule selection list.
Within Schedule Setup:
Pressed once to change a selection status from “Y” to “N”, or to decrease the numerical
value of a ratio, interval, or intensity setting. Press quickly to decrement values by 1 unit,
hold to run the value down to zero.
Within Schedule Operation:
Use with Scroll Up to view dierent data display screens.
Enter Within Schedule Selection Menu:
Press once to select the displayed schedule and display the rst setup screen
Within Schedule Setup:
Press once to move to the next setup screen for the selected schedule.

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Abbreviations
Test Data Displays
FL Front Left Lever Count
FR Front Right Lever Count
BL Back Left Lever Count
BR Back Right Lever Count
ODL Omnidirectional Response Count
SHP Shaping Push Button Count
Setup Displays
FR LF Front Left
FR RT Front Right
BK LF Back Left
BK RT Back Right
Schedule Data Displays
BLB Back Left Bar (response) Count
BRB Back Right Bar (response) Count
CT Ratio Value in Discrimination 2 & 4
DRL Interval Value (seconds)
ESCT Escape Count
FI Fixed Interval Value (seconds)
FLB Front Left Bar (response) Count
FR Fixed Ratio Value
FRB Front Right Bar (response) Count
INT Interval Value(s) (Escape & Avoidance)
INTVL Interval Value (seconds) in DRH
LAT Latency to respond in Escape and Avoidance Schedules
LIQ Liquid Reward Count
ODL Omnidirectional Lever (response) Count
PEL Pellet Reward Count
SHP Shaping Push Button Count
TRL Trial Number
VI Variable Interval Value (seconds)
VR Variable Ration Value
Note: A number or +/- is used with some of the above to separate counters as needed for particular
schedules.

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Operant Conditioning Console
6
Using the Test Menu
When the control console is rst powered up, it defaults to the Magazine Training schedule selection. Press
the Up Button to go to the Test Menu. The Test Menu will cycle through several test options. Press the Reset
Button to exit the test menu at any time and turn OFF any outputs that have been left ON.
1. Press Enter to reveal the Auxiliary Output test.
2. Press Enter to skip to the next test menu. Press the Up button to change from the default setting ‘N’ to ‘Y’.
This will turn all four auxiliary outputs ON. Press the Down button to change back to ‘N’ and turn all four
auxiliary outputs OFF. The pellet dispenser may also be activated once each time the outputs are turned
ON. Pulsed outputs will be pulsed once each time a ‘Y’ option is selected. You must select ‘N’ even though
the output has turned OFF and then ‘Y’ for each pulse. Those outputs that are not pulsed will remain ON if
ON when exiting. Use a nal Down button to switch all auxiliary outputs OFF, and press Enter to advance
to the Input Test screen.
3. The input test screen consists of a counter for each available input response. Press any response or
shaping push button to increment a count. Press Enter to move to the next menu.
4. A stimulus output selection is provided. Use the Up button to raise the level of the indicated output from
0 to a max of 20 and the Down button to return the level to 0 (OFF). Press the Enter button to reveal the
next menu. Note: If an output is ON when the Enter button is press, it will be left ON until the test menu
is exited. Repeat for all stimulus lights and tones.
5. At the completion of the CS test menus, the Reward test menus are revealed. Press Run to begin the next
series of tests.
6. Press the Up or Down buttons to increase or decrease the timed reward output. Use the Shaping push
button to activate the reward output as indicated. Press Enter to repeat this test for the Liquid Dispenser,
Shock Output, or Air Pu Control. Press Reset to return to the Magazine Training menu.
Magazine Training – Step by Step use of the Menu Setup
Displays
When the control console is rst powered up, it defaults to the Magazine Training schedule selection. The Up/
Down buttons will take you to other schedule options but for now press Enter.
1. Acceptable Response #1 - Press Enter to accept the default Front Left Press Bar as active. To disable this
response press the Down button, followed by Enter.
2. Acceptable Response #2 - Press Enter to accept the default Front Right Press Bar as active. To disable this
response press the Down button, followed by Enter.
3. Reinforcement Method #1 – Press the Up button to select the Pellet Dispenser (or any device connected
to output terminal #3) followed by Enter. To leave the Pellet Dispenser disabled simply press Enter.
4. Reward Pulse Time #1 – Press Enter to accept the default time of 0.05 seconds. This is sucient for the
80208 and 80209 Pellet Dispensers. Use the Up/Down buttons to change this time if needed. A quick
press will change the time by 0.05 seconds. Hold the button to advance the time more quickly.
5. Reinforcement Method #2 - Press the Up button to select the Liquid Dispenser (or any device connected
to output terminal #4) followed by Enter. To leave the Pellet Dispenser disabled simply press Enter.
6. Reward Pulse Time #2 – Press Enter to accept the default time of 0.05 seconds. This is sucient for the
80201 Liquid Dispenser. Use the Up/Down buttons to change this time if needed.
7. Additional Settings – Press the Up button and Enter to select from the additional settings list. Press Enter
only to skip additional settings.
8. FR LF STIM LITE – This setting turns the Front Left Stimulus Light on during magazine training. Use the Up
button to set the intensity level from 0 (OFF) to 20 (full brightness). Press Enter to accept the setting.

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9. FR RT STIM LITE – same as #8 for the Front Right Stimulus Light.
10. Auxiliary Output #3 – Press the Up button and Enter to turn a device, e.g. house light, that is connected to
the auxiliary output #3 on the rear panel ON during magazine training. Press Enter only to leave the Aux
#3 output disabled.
11. Auxiliary Output #4 – same as #10 except for Aux #4 output.
12. Press Run to Begin – Counters are displayed to monitor animal responses, shaping responses and rewards.
See Schedule Descriptions for additional details.
Schedule Descriptions
The step-by-step setups of each schedule are similar to that described for Magazine Training and will not
be repeated in this section except for settings unique to the operation of the schedule. Use the Down/Up
buttons to scroll down or up the list of available schedules. A separate extinction schedule is no longer
provided. Simply use Magazine Training, Partial Reinforcement, or Fixed Ratio without a reinforcement device
selected. When using Partial Reinforcement, program the stimulus light to come on when the shaping button
is pressed to look at spontaneous recovery.
Magazine Training
a. Both front press bars and the shaping push button increment their respective counters.
b. Reinforcement is given for each selected/acceptable response and for each push button activation.
c. The reinforcement counter is incremented for all reinforcements.
d. The CS lights are available and turn ON at the intensity selected from 1 - 20 when the Run command is
issued. The CS remains ON for as long as the schedule is running.
e. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule.
f. The Tones and Shock are OFF.
Partial Reinforcement (PRF)
a. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
b. Reinforcement is given for each selected/acceptable response only when the push button is being
pressed.
c. The reinforcement counter is incremented for all reinforcements.
d. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 only when the
shaping push button is pressed and held. CS is turned OFF as soon as the push button is released.
e. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule. Use the Down button
to reveal multiple data screens and the Up button to return to previous screens while the schedule is
running or paused. Data will be lost as soon as the schedule is terminated.
f. The Shock is OFF.

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Fixed Ratio (FR)
a. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
b. Reinforcement is given for each selected/acceptable response only for each nth response. This value is
set in the Ratio Control screen of the set up menu using the Up and Down buttons. The default value is 1
or Continuous Reinforcement (CRF). The maximum value is FR-99.
c. The reinforcement counter is incremented for all reinforcements.
d. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 for as long as the
schedule is running.
e. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule.
NOTE: The ratio count will return to zero when the schedule is paused. For example, if the animal has
made 3 responses toward meeting an FR5 when the scheduled is paused, it will still require 5 responses
to meet the ratio when the schedule is resumed. Press Run to continue/resume schedule operation and
Reset to terminate the schedule. Use the Down button to reveal multiple data screens and the Up button
to return to previous screens while the schedule is running or paused. Data will be lost as soon as the
schedule is terminated.
f. The Shock is OFF.
Variable Ratio (VR)
The Variable Ratio schedule is set up and run in a manner identical to the FR schedule. The only dierence is
that the Ratio Control setting now sets the Mean ratio value for delivery of reward. The actual distribution is
quasi-gaussian with a lower limit of ½ x mean. Although the upper limit is open, the probability of obtaining
a value greater than 2 x mean is very low.
Fixed Interval (FI)
a. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
b. Reinforcement is given for the rst selected/acceptable response to occur after ‘t’ seconds have elapsed.
The timer is reset to zero and restarts at the completion of the reward pulse. The green status light
is turned ON to indicate that the interval timer has timed out. The interval value is set in the Interval
Control screen of the set up menu using the Up and Down buttons. The default value is 1.0 seconds. The
maximum value is 99.9 seconds in 0.1 second increments.
c. The shaping pushbutton will deliver reinforcement at any time and will reset the interval timer to zero.
d. The reinforcement counter is incremented for all reinforcements.
e. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 for as long as the
schedule is running.
f. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule.
NOTE: The interval value will return to zero when the schedule is paused. For example, if the timer has
timed for 3 seconds of a 5 second FI, it will still require a 5 second interval when the schedule is resumed
for a response to be rewarded. Press Run to continue/resume schedule operation and Reset to terminate
the schedule. Use the Down button to reveal multiple data screens and the Up button to return to
previous screens while the schedule is running or paused. Data will be lost as soon as the schedule is
terminated.
g. The Shock is OFF. Auxiliary Outputs #3 and #4 are available.

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Variable Interval (VI)
The Variable Interval schedule is set up and run in a manner identical to the FI schedule. The only dierence is
that the Interval Control setting now sets the Mean interval value for delivery of reward. The actual distribution
is quasi-gaussian with a lower limit of ½ x mean. Although the upper limit is open, the probability of obtaining
a value greater than 2 x mean is very low.
Discrimination 2
This two-part discrimination is designed to let you set all contingencies for two alternating schedules.
Switching between the two component parts S1 and S2 is controlled with the shaping push button. The ratio
control setting applies to both components. The rst group of settings is labeled 1. The default settings for
the rst component are for the front left lever to be active with the front left stimulus light at full intensity
and no reward. The default settings for the second component are for the right front lever to be active
with the front right stimulus light at full intensity and pellet reward. Position and not the stimulus light
determine where reward is available. A simple Go-No Go Discrimination would use the same response in
both components. In the reward component the CS would be ON, and reward would be available. In the no
reward component the CS would be OFF and reward not available. Change any default setting as needed to
meet a specic experiment design. Discrimination 4 has four components and could be set up with varying
levels of light for a stimulus generalization study.
a. Press Enter to select Discrimination 2 from the Schedule Selection list and display the rst Set-Up screen.
Use the Up/Down buttons to change the setting and/or press Enter to accept the default setting and
proceed to the next item. When Set-Up is complete, press Run to activate the schedule.
b. Only the Front Right and Front Left Press Bars are used for this schedule. Two counters are provided for
each to separate responses in S1 vs. S2. A counter is also provided for the shaping push button.
c. Reinforcement is given for each selected/acceptable response only for each nth response. This value is
set in the Ratio Control screen of the set up menu using the Up and Down buttons. The default value
is 1 or Continuous Reinforcement (CRF). The maximum value is FR-99. The same ratio applies to both
components of the schedule.
d. Separate reinforcement counters are incremented for all reinforcements in S1 & S2.
e. Stimuli selected for each component will be ON for the duration of the component at an intensity of 0 – 20
where 0 is OFF and 20 is full intensity. Lights and/or Tones may be selected.
f. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. Press Run to continue and Reset to terminate the schedule. Use the Down button
to reveal multiple data screens and the Up button to return to previous screens while the schedule is
running or paused. Data will be lost as soon as the schedule is terminated.
g. The Shock is OFF. Auxiliary Outputs #3 and #4 are available.
Discrimination 4 - Stimulus Generalization
Discrimination 4 is identical to Discrimination 2 except that there are now 4 component schedules to
congure. This is particularly useful for a stimulus generalization experiment. The four components are
presented sequentially or at random. The default setting of ‘N’ cycles sequentially S1-S2-S3-S4. Use the Up
button to select ‘Y’ or random. The rst sequence will still be as programmed S1-S2-S3-S4, however each
component selection thereafter is randomly determined with the following exceptions. Components are
never repeated. Selection is made without replacement so that each component is always presented an equal
number of times for each group of four selections.

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Dierential Reinforcement of Low Response Rates (DRL)
The set up for DRL is identical to the set up for FI. The only dierence in this schedule is the aect of responses
made while the interval timer is timing. See “b.” below.
a. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
b. Reinforcement is given for the rst selected/acceptable response to occur after ‘t’ seconds have elapsed.
Responses made on the selected/acceptable response(s) prior to the interval timer timing out reset the
timer back to zero without delivering a reward. The green status light is turned ON to indicate that the
interval timer has timed out. The interval value is set in the Interval Control screen of the set up menu
using the Up and Down buttons. The default value is 1.0 seconds. The maximum value is 99.9 seconds in
0.1 second increments.
c. The shaping pushbutton will deliver reinforcement at any time and will reset the interval timer to zero.
d. The reinforcement counter is incremented for all reinforcements.
e. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 for as long as the
schedule is running.
f. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. The interval value will return to zero when the schedule is paused. Press Run to
continue and Reset to terminate the schedule. Use the Down button to reveal multiple data screens and
the Up button to return to previous screens while the schedule is running or paused. Data will be lost as
soon as the schedule is terminated.
g. The Shock is OFF.
Dierential Reinforcement of High Response Rates (DRH)
This schedule is just the opposite of the DRL and set up uses menu items from both FR and interval schedules.
The task is to complete the FR prior to the interval timing out. Once the interval times out the FR count is
reset to zero.
a. Select acceptable responses and reinforcement options as in previous schedules
b. Ratio Control. Use the Up and Down buttons to set the desired ratio. Press quickly to change values
by 1 unit, hold the button to rapidly increment or decrement the value. The minimum value is 2. The
maximum value is 99.
c. Interval Control. Use the Up and Down buttons to set the desired interval from 0.1 to 99.9 seconds in 0.1
second increments.
d. All press bars, the Omni-directional lever, and the shaping push button increment their respective
counters.
e. The interval timer starts with the rst response and is indicated with the green status light turning ON.
Reinforcement is given only if the FR value is met before the interval times out. Once the interval timer
times out and the green status light turns OFF, the ratio count is reset to zero and the interval timer begins
all over with the next response. Only responses made on the selected/acceptable response(s) increment
the ratio counter.
f. The shaping pushbutton will deliver reinforcement at any time. If the interval timer is running, the interval
value resets to zero and continue to run. The ratio count remains unchanged providing the animal an
opportunity to still meet the contingencies of the schedule.
g. The reinforcement counter is incremented for all reinforcements.
h. The CS lights and tones are available and turn ON at the intensity selected from 1 - 20 for as long as the
schedule is running.
i. A single Reset pauses the schedule and turns selected outputs OFF. The green status light ashes while
the schedule is paused. The ratio count and interval values reset to zero when the schedule is paused.