PSYB45H3 Lecture Notes - Lecture 9: Post-It Note, Stimulus Control, Hand Washing

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Published on 17 Apr 2013
School
UTSC
Department
Psychology
Course
PSYB45H3
PSYB45
Behaviour Modification
Lecture 9
22nd March 2013
Two Types of Antecedents
- Discriminative Stimuli- it is a direct antecedent to the behaviour, it makes you do behaviour A
and not behaviour B. It is the direct stimulus for the behaviour. It is a stimulus that makes you
do one behaviour and one behaviour only
- Motivating Operations- it makes a consequence more effective, or increase the likelihood of
that behaviour, it changes your environment or mood to make the behaviour stimulus stronger.
- They often work together and you see them happening at the same time.
Discriminative Stimulus
- A cue that sets the occasion for a particular behaviour and consequence
- Other stimuli serve as an antecedent for not doing a behaviour (Sdelta)
- Discriminative means it leads you to a particular behaviour and not any other behaviour
- Stimulus is a type of antecedent, antecedent is more broad.
- Example; your phone rings and you answer it, besides answering, you might be calling someone,
you might be voice dialing, or modelling. However when the phone rings there is one
discriminative behaviour that you do. So if your phone rings there is a multiple things you can
do, you can ignore it , throw it against the wall. When you are talking about discriminative
stimulus it is what is likelihood for you to answer it. Most likely most people answer the phone.
It is a stimulus that points us to the most likely thing to occur.
- Example; OCD, the stimulus is feeling anxiety, or touching something contaminated. The
discriminative stimulus is touching something contaminated is soemtihng that is directly linked
to the behaviour. Feeling anxious isn’t discriminative, it is not the first thing that leads to hand
washing. Feeling anxious can result to other results.
Stimulus Generalization
- Attribute consequence off the discriminative stimulus to other similar stimulus. We can get
condition to something and reinforced for it, and then we learn to generalize it to other things.
- For example; You don’t learn at five years old that your phone at home is the only phone that
rings and has that specific ringtone, you become conditioned that other phones ring too, and if
you answer it, then it will be the same behaviour.
- Once people develop a strong discriminative stimulus, the stimulus of that feature can be
transferred to different environments.
Stimulus Control- once that stimulus happens that behaviour is likely to occur and you cant control it.
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Document Summary

Discriminative stimuli- it is a direct antecedent to the behaviour, it makes you do behaviour a and not behaviour b. It is the direct stimulus for the behaviour. It is a stimulus that makes you do one behaviour and one behaviour only. Motivating operations- it makes a consequence more effective, or increase the likelihood of that behaviour, it changes your environment or mood to make the behaviour stimulus stronger. They often work together and you see them happening at the same time. A cue that sets the occasion for a particular behaviour and consequence. Other stimuli serve as an antecedent for not doing a behaviour (sdelta) Discriminative means it leads you to a particular behaviour and not any other behaviour. Stimulus is a type of antecedent, antecedent is more broad. Example; your phone rings and you answer it, besides answering, you might be calling someone, you might be voice dialing, or modelling.

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