Functions of Behavior

“Why did he do that?”

We hear parents ask this question often regarding behavior functions. When assessed, reasons for the behavior become more apparent. This newfound understanding can assist in creating a systematic and personalized behavior therapy plan for your child with Autism Spectrum Disorder.

1. Social Attention

A person may engage in a specific type of behavior in order to gain social attention. For example, a child might engage in a behavior to get other people to look at them, laugh at them, play with them, hug them or scold them.

While it may seem strange that a person would engage in a behavior to deliberately have someone scold them, it can occur for because some people it is better to obtain “bad” attention than no attention at all (Cooper, Heron and Heward, 2007).

2. Tangibles or Activities

Some behaviors occur so the person can obtain a tangible item or gain access to a desired activity. For example, someone might scream and shout until their parents buy them a new toy (tangible item) or bring them to the zoo (activity).

3. Escape or Avoidance

Not all behaviors occur so the person can “obtain” something; many behaviors occur because the person wants to get away from something or avoid something altogether (Miltenberger, 2008).

For example, a child might engage in aggressive behavior so his teachers stop running academic tasks with him or another child might engage in self-injury to avoid having to go outside to play with classmates.

4. Sensory Stimulation

The function of some behaviors does not rely on anything external to the person and instead are internally pleasing in some way – they are “self-stimulating” (O’Neill, Horner, Albin, Sprague, Storey, and Newton, 1997).

They function only to give the person some form of internal sensation that is pleasing or to remove and internal sensation that is displeasing (e.g. pain).

For example, a child might rock back and forth because it is enjoyable for them while another child might rub their knee to soothe the pain after accidentally banging it on the corner of the table. In both cases, these children do not engage in either behavior to obtain any attention, any tangible items or to escape any demands placed on them.

Tools For Discovering the Functions of a Behavior- ABC Data

The observer records a descriptive account of the behaviors of interest including what happens before, during and after behaviors are performed.

A- Antecedent

What occurs in the environment immediately before the behavior of interest?

B- Behavior

What the behavior of interest looks like.

Examples of what to record: What the behavior of interest looks like (e.g hitting, kicking, throwing, ripping paper, eating rocks etc) frequency and duration when applicable.

C- Consequence

What occurs in the environment immediately after the behavior of interest? This is the part of the ABC’s that causes the behavior to happen again and again.

Examples of what to record: Who delivered the consequence, what items they were allowed access to pre- and post-consequence, what work they stopped doing as a result of the behavior.


The image above displays the ABCs of functions of behavior but in a helpful chart format.

A tried and true example of the ABCs of functions of behavior in action is the screaming kid in the grocery store. A child in a shopping cart enters the checkout line and sees the shelf full of candy (antecedent), they begin to cry because they want a candy bar (behavior), the parent wants them to stop crying so they buy them the candy bar (consequence). In the child’s mind, they cried once and got the candy bar, most likely they will cry next grocery trip since the behavior worked in the past. Before long, it becomes a perpetual loop of crying and buying. 

By assessing your child’s behaviors based on this technique, you may be able to more accurately understand your child’s behavior and develop a plan that you can implement in your home.

The Zones of Regulation: A Cognitive Behavioral Approach

The Social Thinking® initiative creates differentiated strategies and treatments to increase cognitive development and social skills. Often applied to those with ASD, the Zones of Regulation curriculum is rooted in cognitive behavioral therapy strategies for emotional and sensory self-management. These tools can be applied from the age of four to adolescents and through adulthood to assist in conquering interpersonal social skills.

Available here

The curriculum’s learning activities are designed to help those who struggle with social skills recognize when they are in different states of mind, or “zones”, with each of four zones represented by a different color.

In the activities supplied in the book and often implemented by our ABA therapists, clients also learn how to use strategies or tools to stay in a specific zone or move from one to another. They learn and develop calming techniques, cognitive strategies, and sensory supports to provide them with a toolbox of methods to use to move between zones.

With the goal of assisting those with ASD to better understand why emotions matter and how to self-regulate, the lessons set out to teach clients the following skills:

  • How to read others’ facial expressions and recognize a broader range of emotions
  • Gain perspective about how others see and react to their behavior
  • Develop insight into events that trigger their less regulated states and why they feel the way that they do
  • Understand when and how to use tools and problem-solving skills

The curriculum includes 18 lessons with detailed questions and follow ups, worksheets, other handouts, and visuals to display and share. These can be photocopied from this book or printed from the accompanying USB.

The Red Zone describes extremely heightened states of alertness and intense emotions. A person may be elated, euphoric, or experiencing anger, rage, explosive behavior, devastation, or terror when in the Red Zone.

The Yellow Zone describes a heightened state of alertness and elevated emotions; however, individuals have more control when they are in the Yellow Zone compared to the Red Zone. A person may be experiencing stress, frustration, anxiety, excitement, silliness, the wiggles, or nervousness when in the Yellow Zone. Many individuals with ASD believe the Red Zone is the only option when their emotions begin to heighten, but the Yellow Zone is the in-between, an option to catch themselves before they escalate too far.

The Green Zone is used to describe a calm state of alertness. A person may be described as happy, focused, content, or ready to learn when in the Green Zone. This is the zone where optimal learning occurs and where we would like to come back to after experiencing emotions in another zone.

The Blue Zone is used to describe low states of alertness and down feelings such as when one feels sad, tired, sick, or bored.

The zones themselves each offer a range of emotions to accompany many situations, environmental or otherwise, however, it is entirely plausible that an individual may be in more than one zone at any given time. This could occur when someone is too sick (Blue Zone) and may also feel frustrated (Yellow Zone) that they cannot go to a birthday party. Understanding what these zones mean and how they relate to each other is the optimal understanding of the four zones.

It is important to teach that all of the zones are natural and okay to experience, but the idea of the curriculum focuses on teaching individuals how to recognize and manage the zone they are in based on their situation and the people around them.

Learn more about the Zones of Regulation in the article, All the Zones are OK! Tips for Managing the Zones You’re In.

Learning Opportunities at the Park

Leaving the house with a child who has Autism Spectrum Disorder can be difficult, but we promise, it is worth the countless learning opportunities these outings provide.  New places and people are excellent ways to ensure your child is generalizing all of the amazing new skills you are teaching him from making eye contact to asking another child to join him in play.  

Things to note:

  • Stand in front of your child when he or she is swinging.  This way they can associate you with the fun sensation of being pushed back and forth!
  • Work on language and social skills while simultaneously performing gross motor activities. This builds critical connections between different regions of the brain.
  • Encourage your child to play with many different items at the park.  Make sure you prompt him to move on if his play becomes repetitive in nature (ex: going up the same ladder and down the same slide over and over).

While at the park:

1. Get in your child’s attention spotlight as often as possible (face-to-face within 3-4 feet)

2. Have fun (goofy faces, sing songs, big smiles, play movement games).

3. Imitate his vocalizations and actions.  Trust us children love to see that you are interested in what they are doing. Initially you may need to be careful to bring two of certain items such as balls, toy trucks, etc.  Some children will shut down if they feel like you are taking their toy.

4.  Follow the ONE-UP RULE. If your child is nonverbal label items and actions with one word (e.g. “push,” “swing”) If he is reliably using one word to make requests and communicate table items and actions with two words (“go fast” “kick ball”).

These strategies can increase engagement between you and your child with Autism Spectrum Disorder. We hope you have found them useful.

Feel free to comment with any additional strategies below!