Overview of Verbal Behavior

Debra Paone, Ph.D., BCBA

Douglass Developmental Disabilities Center

Verbal Behavior

Focus on teaching functional language

Language is a behavior that can be shaped and reinforced

Based on Skinner¡¯s (1957) Verbal Behavior

Verbal Behavior

Why is it important?

- Almost always reduces challenging behavior because it teaches the child to request (mand) for those things that he/she wants or needs

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Verbal Behavior Classification System

Verbal operants

Echoic: imitation ¨C saying juice after someone else says juice ¨C reinforcement is social/not the juice

Mand: request ¨C saying juice when thirsty and you want juice ¨C the reinforcement is obtaining the juice

Verbal Behavior Classification System

ABA: Key Terms

Three Term Contingency

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Antecedent: state, condition, or change to the environment prior to a behavior

Behavior: the response emitted

Consequence: state, condition or change of the environment after a behavior

The Fourth Term?

Motivative Operations

Effects the level of motivation the student has to acquire reinforcement

Alters the value of the reinforcement

The strength of an MO varies and changes

Pairing

Establish an environment that is associated with good things

The child will receive access to his/her preferred items when he/she approaches the work area and instructor

The instructor and the work area will become associated with good things

The goal of pairing is for the child want to go to the work area or to be with the instructor

Mands

Mands

Definition: a type of verbal behavior where the response is controlled by a motivational variable (MO)

Deprivation/Satiation

A mand names its reinforcer

Allows the individual to spontaneously request needed or desired items

A mand benefits the speaker by obtaining specific reinforcement ¨C satisfying the MO

Examples of Mands

Requesting a drink when thirsty ("I want juice")

Asking for a break

Problem behavior: Yelling, hitting, throwing objects

Giving a jar to someone to open ("Help")

Asking, "Where is it?"

Importance of Mand Training

Mand Training¡­.

Present an opportunity or wait for the child to show interest in something.

Withhold the desired item or an essential item required to complete task (crayon, straw, remote)

Model the mand, wait 2-3 seconds for response

Immediately reward the child with the object after the mand or an approximation of the mand is given

Systematically add new targets

Train in natural environments

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Teaching First Words as Mands

Existing motivation/interests

Consumable

Short duration of contact

Easy to remove from student

Easy to deliver

Easy to deliver on multiple occasions

Reinforcers that always seem strong

Teaching First Words¡­.

Avoid words that have little communicative value (more, yes, no, please)

Avoid too general words (i.e., more)

Choosing First Response Forms

Verbal:

-Echolalic

-Exhibiting behavior that we can

use to teach them to

functionally communicate

First Response Forms¡­

PECS:

-Strong visual-perceptual skills

-Weak auditory skills

-Nonverbal

-Beginning of mand training for

learners who are vocal but not

imitating

-Fade pictures quickly

-Difficulty imitating or producing series of

movements that would require signs

First Response Forms¡­.

Sign:

-Weak visual-perceptual skills

-Don¡¯t attend to pictures

-Strong motor imitation skills

-Families who have difficulty

organizing pictures for PECS

Mand Training

Mand Training

Mands

Mand training

Mand for information

What?

Contrive situations

Examples: With hands behind your back say, "I have a surprise for you!"

Hold and shake a bag ¨C "There is something special for you in here!"

"We are going to do something fun now!"

Initially, you will be prompting the mand for information, "What is it?"

Mand for information

Data for Manding Sessions

Track both prompted and independent mands

Over time independent mands should increase

Can develop goal for # of mands in a session (i.e., minimum 1/minute)

Benefits of Mand Training

Parent/Instructor always knows what will function as a reinforcer

Decreases challenging behaviors

-Reduce need to request through

disruptive behaviors

-Appropriate requesting skills

reduce learner frustration

Echoics

Imitation

Under control of someone¡¯s vocal behavior

Parent: Say hi

Child: Hi

Use to teach other verbal operants

While opening box with favorite snack, parent says, "Open." Child says, "Open."

Echoics¡­

Use as a teaching tool

To acquire new language

To improve articulation

Used to teach other verbal operants

Mands, tacts, intraverbals

May use for specific sounds/phrases

Tacts

Under control of visual (nonverbal) stimulus

Naming/identifying nonverbal stimuli (objects, events, actions)

Includes skills of retrieval & articulation

Increase the capacity to comment

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Teaching Tacts

After 5-10 mands for reinforcers have been established

Cooperation with instructors

Some echoic and imitation skills

Emerging matching to sample skills

Concurrent with teaching receptive skills

Tacts¡­

Increases ability to demonstrate joint attention (I see a ___; Look, it is a __)

Increases labeling skills

Teaching Tacts

Teaching Tacts¡­

Begin teaching tacts with words that have been acquired as mands

If learner has a strong echoic repertoire, can consider starting with new words

Begin with actual objects present in learner¡¯s environment

Move to pictures as quickly as possible

Teaching Tacts¡­

Instruction, "What is this?; What do you see?"

When features have been acquired, begin to build on tacts

Tell me everything you see

I see a big, brown bear

Generalization procedures should include different examples, pictures, carrier phrases, etc.

Intraverbals (Conversation)

Under control of another person¡¯s verbal behavior; the antecedent stimulus is another person¡¯s verbal behavior

Different from the echoic in that it does not exactly match another¡¯s verbal behavior

Definition: behavior that allows a speaker to talk about objects and events even though those objects and events are not physically present

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Intraverbals¡­

Includes answering questions and participating in conversations

Early intraverbals can include fill-in-the blank, beginning "wh" questions

Fill in songs; Fill in familiar phrases

Teaches staying on topic

Teaching Intraverbals

Many learners with autism can answer questions when item is present

Many learners are not able to respond when item is not present

Can use transfer procedures to teach

Transfer Procedures

A response the learner can already produce

Teaching learner to produce in same/similar response in another situation

Use as a starting point what the learner can already produce

Learner is more likely to repeat same behavior/say same word he previously did

Gradually add ¡®distance¡¯ between responses until learner can respond to new SD

Teaching Intraverbals¡­

Tact to Intraverbal Transfer

I: "What do we play with?" (blocks present)

L: "Blocks"

I: (Puts blocks behind back) "What do we play with?"

L: "Blocks"

Teaching Intraverbals¡­

Fill-in to Intraverbal Transfer

I: "We play with _____"

L: "Blocks"

I: What do we play with?"

L: "Blocks"

Teaching Intraverbals¡­

Echoic to Intraverbal Transfer

I: "Say, car"

L: "Car"

I: "What do we ride in?"

L: "Car"

Mand to Tact Transfer¡­

I: "What¡¯s this?"

L: "Ball"

I: "What do you want?"

L: "Ball"

For some learners tact trial could follow mand trial

Receptive to Tact Transfer

Physically assist child to touch desired item (physical prompt) or model correct response

Transfer receptive response to a label

I: "Touch the car"

L: "Car" while point to the car

I: "What¡¯s this?"

L: "Car"

Echo to Tact Transfer

Transfer a mastered response to a new condition

I: "Say car"

L: "Car"

I: "What¡¯s this?"

L: "Car"

Fill-in to Tact Transfer

If learner has used fill-ins in the past, this response can be transferred to the tact

Fill in responses have no requirement of a response from a learner

It is easier to use; helps avoid too many question when teaching language

I: "We wash hands in the ___"

Fill-in to Tact Transfer¡­

L: "Sink"

I: "What¡¯s this?"

L: "Sink"

Feature, Function, Class

Function (what an object is used for)

-Point to the one you read

-Show me what you sleep in

Class (group or category)

-Show me what is clothing

-Touch all the animals

Prerequisites for Teaching FFC

Teach after learner has 50 words- mands, tacts, receptive discriminations

Teach after generalized tact and receptive responses

Teach after different carrier phrases for tacts/receptive disrciminations

Prerequisites for Teaching FFC¡­..

Learner must be able to tact parts/adjectives associated with objects to avoid rote responding

Receptively identify and ideally label (i.e., whiskers, paws, furs, tail) before using features in FFC training

FFC: What to Target

Choose most relevant to learner¡¯s life at that time

Functions are typically developed first

Ask a typically developing child to describe a item to determine appropriate response

Adjectives, nouns, verbs can all be taught as classes

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FFC: Parts of Speech

Target is a verb=teach as a function

Target is a noun=teach as a feature or part

Target is an adjective/adverb=teach as a feature

No ¡®magic¡¯ number as to how many to teach

Natural Environment

Verbal operants that the child has acquired should be used in the natural environment

Set up the opportunity to use skills

Feature (big) ¨C mand for cookie ¨C ask which one (show one big and one small)

Getting a drink ¨C ask what do you drink from?

cup can be present or absent

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Last Modified on August 27, 2012