My Sniffy bar-pressed twice during the 10 min observation time.ġ2 Magazine Training Using the spacebar or your mouse, drop a pellet from the hopper When Sniffy approaches and eats it, give him another pellet Consider Sniffy magazine-trained when he approaches the hopper as soon as you drop a pellet (10-15 reinforcements) You can test his training by waiting until he is far away from the hopper (nearest to you) and dropping a pellet: if he goes to eat it, he’s magazine-trained The line also moves up when he presses the bar, allowing you to track training progress. The ticks on the cumulative record show when Sniffy bar-presses. Observe Sniffy’s base-line behavior for 10 mins Magazine Training Shaping Bar-Pressing by Successive Approximation Extinction Spontaneous Recovery PRF Schedules: Fixed Ratio 20 extinction Variable Ratio 20 extinction Fixed Interval 20 extinction Variable Interval 20 extinctionįor 10 minutes, observe Sniffy’s behavior Pay attention to what he does and get an idea of what kind of behaviors you’ll be reinforcing later on Planning ahead a bit will help with the next part Record how many times Sniffy bar-presses on his own in the 10 minutes DO NOT reinforce himġ0 bar water magazine/hopper The cumulative record (CR) will show you how Sniffy’s training is progressing These dotted lines show you 5-minute incrementsġ1 The ticks on the cumulative record show when Sniffy bar-presses
#SNIFFY PROGRAM FOR MAC MANUAL#
Reward happens after a set number of responses or time Variable - Reward happens around a certain average Ratio - Bar-pressing is the determinant for reward Fixed Ratio (FR) - Pellet is delivered after a set number of bar-presses Variable Ratio (VR) - Pellet is delivered after an average number of bar-presses Interval - Amount of time is the determinant for reward Fixed Interval (FI) - Pellet is delivered after a set amount of time passes Variable Interval (VI) - Pellet is delivered after an average amount of time passes 1 2 3 4ħ Materials needed The lab manual (on Moodle) read this before you start Sniffy Program On any campus lab computer: Click My Computer Apps on Caesar (‘S:’ drive) Sniffy folder double click the Sniffy icon to open the program Stop watch, or stop watch app on your phone Paper & penĨ Project components Shaping an Operant Response: PRF Schedules: Rewarded every time the desired behavior occurs Every time Sniffy presses the bar, he will get a food pelletĦ PRF Schedules – 4 Types: Fixed Variable Ratio Fixed Ratio (FR) Sniffy might press the bar 5 times and only get rewarded once.
#SNIFFY PROGRAM FOR MAC HOW TO#
210 Lab Assignment #2 – 2014 Due: Friday April 4th (last day of classes)Ģ Today Brief background: Operant conditioning and the reinforcement schedules we’ll use Using the Sniffy Program Steps to completing the assignment Walkthrough of CRF training (and brief explanation of how to start PRF training) Assignment Outline – lab reportģ Purpose The Sniffy program will help you understand operant conditioning and give you first-hand experience with these concepts: Magazine training Shaping behavior Partial Reinforcement (PRF) schedules Continuous Reinforcement (CRF) Fixed Ratio (FR) Variable Ratio Schedule (VRF) Fixed Interval (FI) Variable Interval (VI) Acquisition ExtinctionĤ Operant Conditioning Increases the rate of a desired behavior by reinforcing that behavior when it occurs In our case, we want Sniffy to bar-press We will reinforce him with food pelletsĥ Schedules of Reinforcement – Main Types:Ĭontinuous Reinforcement (CRF) Partial Reinforcement (PRF) Rewarded some times when behavior occurs not every time e.g.
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