Extinction (Ext): if a behaviour that was previously reinforced stops being reinforced,
the behaviour will stop occurring. Example: you turn the handle to open the emergency
door(response)▯ the door does not open(consequences)▯ you are less likely to use this door
in future. Other research applied to both humans (child trantrum), pigeon and rat ( not
given food when hit the lever) etc.
• Main points of Extinction:
1. A behaviour that has been previously reinforced
2. no longer results in the reinforcing consequence
3. And therefore, the behavior STOPS occurring in the future(Ext)
• Something to watch for: Correct ▯ you extinguished the behavior and NOT correct to say
you extincted behavior. Correct ▯ you put a behavior on extinction rather than a person.
Correct▯behavior is extinguished rather than extinct.
• 1) Behaviour may briefly increase in frequency, duration, or intensity after the
reinforcement is eliminated e.g., child swears: parents ignore it; swearing increases
before declining to 0. But this is a natural process ( not necessarily a conscious process
• Extinction Burst: after a period of extinction, behaviour may reappear, despite the lack of
reinforcement. 2) Interesting to note that often we see a novel behavior: a behavior that
never occurred before but occurs this time when there is not reinforcement (i.e. child
swearing increases but also this time he punches the doors). 3) Sometime might be
emotional responses (i.e. you don’t get you food so your get angry and curse) or
aggression might occurs.
• After a period of extinction, behaviour may reappear,