1-A Clear Picture: The Use And Benefits Of PECS Flashcards
An analysis of language from a behavior analytic viewpoint.
contains no original research and does not address how to teach.
Does not provide And approach to communication training.
A powerful Analytical tool for everyone.
The book, verbal behavior,
He focused on reflexes/respondents and Classical conditioning
Pavlov
He defined OPERANTS:, behavior is defined by their EFFECTS upon the environment
The unit of analysis is A – B – C: antecedents – behavior – consequences.
Change the A or the B and you have a new behavior
Skinner
We cannot define communication by unobservable factors like messages or meaning.
Skinner defines this as… Behavior reinforced through the mediation of other people.
The LISTEN ER must be responding in ways which have been conditioned precisely in order to reinforce the behavior of the speaker (by the verbal community)…”
Verbal behavior
In defining _____ _______. As behavior reinforced through the mediation of other persons, we do not, and cannot, specify any one FORM, mode, or medium.
Any movement capable of affecting another organism may B VERBAL
Verbal behavior
- State of deprivation or aversive stimulation
- Some aspects of the environment
3 OTHER verbal behavior
- OWN verbal behavior
Antecedent conditions that might influence verbal behavior
- Related to motivating operations
•The state of deprivation
• Aversive stimulation
Motivating operations determine if something will function as a reinforcer, and if the response will reoccur
Aversive stimuli that act as MO’ S will make escape a reinforcer
- EDUCATIONAL …… Also known as social.
They Teach Correct response
Consequence conditions – verbal behavior
A verbal operant in which the response is reinforced by a characteristic consequence and is therefore under the functional control of relevant conditions of deprivation or aversive stimulation
Derived from command, demand
Requesting, asking, directing…
The three antecedent conditions, in isolation,
are associated with what we can call the
pure mand, the pure tact (p. 151), and the
pure intraverbal.
Reinforcers specified by the VB, in isolation,
are associated with the pure mand.
When these conditions don’t occur in
isolation, we can describe the VB that results
from this complex control as impure. (p. 151
Mand- Skinners elementary verbal operant’s
Antecedents —Deprivation/motivating operation MO
Behavior——Pure Mand
Consequence—Specified by Mand (concrete or social)
Examples:
•deprived of a ball – says, I want a ball-gets ball
• Hit by a child – says, go away. Other person goes away
Pure Mand
Evoked by a particular OBJECT or event or property of an object or EVENT
Derived from contact (Commenting labeling/naming)
Note: other experts me analyze the greeting differently
Tact
Antecedents: stimulating aspect of the environment: (stimulating circumstances)
Behavior: pure tact
Consequences: education/social
Ex:
Sees a ball, says I see a ball. Hears, that’s right
Here is it’s raining, says, it’s raining. Heats, So it is.
Pure Tact
Responses under the control of audible or written verbal STIMULI supplied by another person or are the speaker himself…
Showing no point to point correspondence with the verbal stimuli that evoke of them…
And reinforced by a GENERALIZED conditioned reinforcer…
… Such as answering questions and fill in the blank’s
PURE Intra-verbal
Skinners elementary verbal operant
Antecedent – verbal behavior
Behavior – Pure Intraverbal
Consequence – educational/social
Examples:
Hears, 1, 2, 3. Says, 4. Hears, good
Pure Intraverbal
Skinners elementary verbal operant
Verbal behavior under the control of verbal stimuli in which the response generate a sound a pattern SAMALAAR to that of the stimulus…
… Resulting in a generalized conditioned Reinforcer
IS NOT: REPEATING Sounds/words that may be self reinforcing but without a verbal stimulus of corresponding a form…Immediately preceding at
Echoic Skinners elementary verbal operant
Reinforcer is specified by the VB, in isolation are associated with the…
Pure Mand
When these conditions don’t occur in isolation, we can describe the VB that results from this complex control as..
Impure Mand
Multiple or mixed antecedent control
Multiple or mixed consequence control
Bondy , Tincani, & Frost, (2004)-complete description
Possible Combinations of Control
Antecedents— Verbal behavior aspect of environment
Behavior—Intra-verbal/Echoics/Tact
Consequence—Social/educational
Ex: With a pencil and view, hears, “Say Pencil” – says, “pencil” – HEARS, “good talking”.
Intraverbal/Echoic/Tact
All changes within the PECS protocol
involve changing a single verbal operant into another by detracting or adding a single antecedent or consequence
Many traditional speech training protocols achieve the mand only after many months of working on other verbal and non-verbal operants
Using VB to Analyze the PECS Protocol
Involves TACTS of private events
We only learn to describe a feeling after someone else has told us what we are feeling
Talking about feelings/emotions Is NOT the same as having them.
Teach language of emotions while learner is experiencing the emotion
Talking about feelings and emotions
Intended to:
Suggest behavior which is based upon
or depends upon other verbal behavior of the speaker
Affects the listener by indicating either a property of the speaker’s behavior or the circumstances
responsible for that property (p. 329).
Derived from ‘self-leaning
The use and understanding of _____ (such as ‘really’) depends upon social reinforcement
Ex. I am “REALLY” hungry
Those with ASD have great difficulty using and responding to these as predicted by Skinner!
AUTOCLITIC - The Subtle Aspects of language
Skinner offers a great analytic tools for anyone teaching language skills
Not a set of teaching strategies.
Can help everyone do what they aim to do more Effectively.
Most useful for teachers, SLP’s, psychologist, behavior analysts, parents, etc.
Verbal behavior- For whom is it helpful?
An approach that teaches early
communication skills using pictures
Students are taught to exchange pictures for something they want
Critical in early teaching is NOT to pre-empt, but wait for students to hand over the picture first, so they initiate the communication
PECS
The Base Elements
Functional Activities
-Functional and purposeful activities
Powerful Reinforcers
-Powerful motivation that drives learning
Functional Communication
-Communication between at least 2 people
Contextually Inappropriate Behaviors
•Focus on functionally equivalent alternative
behaviors
In between Functional activities and functional communication: The “why” of behavior:
The science of learning
Towards the top of the pyramid: - Collecting and analyzing data - The How if teaching
The Pyramid Approach to Education
The Top Elements
Generalization
-Skills generalized right from the start
Effective Lessons
-Sequential, Discrete, Incidental
Specific Teaching Strategies
- Goal is to eliminate prompts
Minimizing and Correcting Errors
-Opportunities to teach-not just fixing mistakes
Data Collection
The Pyramid Approach to Education
Not all behaviors are communicative
Must occur between two people
“Speaker” directs behavior to “listener”
“Listener” mediates access to reinforcer
Communication?
Requires interaction with other people from the start (social approach)
Encourages individual to initiate communication
rather than respond to a prompt (spontaneous)
Starts with requesting, not labeling/commenting
(functional/reinforcing)
Based on the analysis of Skinner’s Verbal Behavior
Advantages of PECS
- HOW to communicate
II: Increasing Spontaneity and Range
IIIA: Simple Discrimination
IIIB Conditional Discrimination
IV: Building Sentences
V: Answering “What do you want?”
VI: Commenting
What next? PECS Advanced Skills
• Continue to teach new Sentence Starters
• Introduce new vocabulary and syntax
PECS - Phases
Goal: Approach people to initiate
communication
To teach initiation
use two-person prompting procedure
Teach three-step sequence
Pick up, reach, release
One picture at a time – NO discrimination
Key: Communicative partner does not prompt
Phase I: How to Communicate
PECS
Goal: Generalize this skill into the natural environment.
To create some distance, and a better exemplify the natural environment:
Adult moves away from student and the picture on the communication book is moved further from the student (still single cards, No discrimination is required). PERISTENCE is taught this
Vary The people, activities, locations, and a reinforcer is involved.student (still single cards, no
discrimination)
The Key: Communicative partner doesn’t prompt
Goal: To teach students to travel to the communicative partner with the book or to get a picture from the book, and to move from room to room with the book.
Lesson type: SEQUENTIAL
Teaching strategy: SHAPING
Phase II: Increasing Spontaneity and Range
Goal: discrimination of desired and undesired items.
Two items are present: a reinforcer and item not a reinforcer.
Have a picture for each item.
MOTIVATION to use the correct picture – results in getting desired item and avoiding undesired item.
Reminders:
• reinforce at 1st indication of choice!
• Picture being taught varies by what is
currently reinforcing
• Vary the “distracter” picture
4 Step Error Correction Procedure for mistakes
Vary position of the pictures and be careful not to create any patterns with respect to the location of pictures
If child reaches for correct, (reinforcer) picture, Provide praise immediately.
If child reaches for a picture of the non-preferred item don’t do anything.
Once child hands you a picture, deliver items that corresponds to picture.
Use The 4 step error correction procedure for mistakes.
Alternative Strategies:
- blank distractor
- large vs small
- Bigger Pictures
- Big Pictures Far Apart
Phase lllA: Simple discrimination
Blank distractor: it’s a prompt so Need to phase out quickly:
Can add a line each trial to make a picture
Can make them from small to large
Large versus small
Bigger pictures.
Big pictures Far apart
Can start with both pictures large and far apart. – Lazarus. Gradually reduce picture size as discrimination improves. Can be on a table and a different location
There are no universal strategies
If child chooses blank card Look like you don’t understand
- Do four step era correction, move picture around.
- If preferred- non-Preferred pictures don’t not work, use.
Alternative Strategies: (Phase lllA Discrimination strategies)