Challenging Behaviour

In the field of neurodevelopment, what we often label as "challenging behaviour" is, in reality, a desperate attempt by the nervous system to communicate or regulate itself in an environment that feels overwhelming. Understanding the internal logic of these behaviours is the first step towards effective and humane intervention.

Introduction: When “Challenging” Behaviour Makes Sense

“When a neurodivergent child throws an object or reacts aggressively towards a task, they aren't being ‘rebellious’. Their system has reached a point of collapse.”

This phrase captures a fundamental truth in clinical and educational approaches to neurodevelopment: every behaviour serves a function. What is often labelled as "pathology" or "bad behaviour" is, in many cases, an emergent form of communication due to a lack of other functional resources.

Functional Behavioural Analysis (FBA) allows us to decipher this logic and direct intervention towards the root of the problem, rather than just its manifestation. In this article, we delve into the functional approach applied to disruptive behaviours in individuals with neurodevelopmental disorders, explaining how understanding the "why" behind the challenge transforms the entire therapeutic and educational process.

What Do We Mean by Challenging Behaviour?

The term challenging behaviour encompasses a wide range of behaviours that disrupt social interaction, hinder learning, or pose a risk to the individual or others. This includes shouting, aggression, self-harm, tantrums, absconding, destruction of property, or refusal to comply with daily demands.

In clinical and educational settings, these manifestations are frequently seen in children, adolescents, or adults with:

• Autism Spectrum Disorder (ASD).
• Attention Deficit Hyperactivity Disorder (ADHD).
• Language or social communication disorders.
• Intellectual disabilities.
• Sensory processing or motor disorders.

These behaviours are not random. They usually serve an adaptive function within a difficult context, acting as a mechanism for regulation or escape in an environment that exceeds their communicative or emotional capacities.

As clinical psychologist and behaviour analyst Greg Hanley (2018) explains: “Most problem behaviours are learned strategies that have worked to obtain something necessary: to avoid, to get, or to communicate.”

Problem Behaviour or Alternative Language: The Function Behind the Symptom

One of the biggest mistakes in understanding disruptive behaviour is assuming its goal is to "annoy", "manipulate", or "seek attention". However, from a functional analysis perspective, all behaviours have a purpose, and that purpose defines how we address them.

In other words: the behaviour is not the problem; it is the solution the child has found for a deeper problem.

When a person cannot say: “it hurts”, “I don’t want to”, “I’m scared”, or “this is overwhelming me”, their nervous system resorts to action. What the environment perceives as "disobedience" is, in reality, a physical translation of distress or cognitive overload.

Illustrative Example

Imagine a child with autism who bangs on the table every time an activity begins. If we analyse the context, we discover the table is in a room with intense lighting or loud noises. Their behaviour isn't intended to frustrate; it is a way to escape a hostile sensory environment that their system cannot process.

At Ocnos Psychology Clinic (Campo de Gibraltar)

In our clinical practice, when a child throws an object or screams at a demand, we don't interpret it as "rebellion". We interpret it as a collapse. Our goal is to translate that response into a comprehensible message and, from there, teach safe and functional ways of communication or self-regulation.

Foundations of Functional Behavioural Analysis (FBA)

FBA is a methodological tool derived from behavioural psychology, primarily developed by B. F. Skinner (1953) and later contemporary models of Applied Behaviour Analysis (ABA).

Its purpose is to identify the variables that maintain a behaviour by understanding the dynamics between:

• Antecedents (A): What happens just before.
• Behaviour (B: behaviour): What the person actually does.
• Consequences (C): What happens immediately after, which reinforces or reduces the likelihood of the behaviour recurring.

The ABC Model

The ABC model (Antecedent – Behaviour – Consequence) is the basic tool for analysing the "what for" of a behaviour.

For example:

• A (Antecedent): The child is asked to tidy up their toys.
• B (Behaviour): The child screams, throws an object, and bangs the table.
• C (Consequence): The adult withdraws the demand or moves away.

Functional analysis reveals that the behaviour serves as an escape mechanism from an aversive task. If this strategy "works"—meaning it results in the withdrawal of the demand—the probability of it happening again increases.

Main Types of Behavioural Functions

FBA classifies the functions of behaviour into four main categories, though always in a flexible and contextualised manner:

• Escape or Avoidance: To get away from unpleasant demands or stimuli.
• Access to Tangibles or Activities: To obtain a desired item (e.g., a tablet, food, toy).
• Social Attention: To gain interaction, even if it is negative.
• Sensory Stimulation or Self-regulation: To regulate internal states (e.g., rocking, shouting, or hitting due to overstimulation).

Real Clinical Example

A young person with ADHD appears "aggressive" every time a maths task begins. Following functional observation, it is discovered that the behaviour only appears when they are required to maintain attention for more than 10 minutes. The function is not to "disobey", but to reduce the cognitively and physically stressful pressure of a sustained demand.

Neurodevelopment and Emotional Dysregulation: When the System Crashes

In typical neurodevelopment, self-regulation and emotional communication skills evolve progressively. However, in many cases of neurodiversity—ASD, ADHD, intellectual disability—the nervous system responds more intensely to frustration, change, or sensory stress.

Neuroimaging studies (Mazefsky et al., Journal of Neurodevelopmental Disorders, 2015) have shown hyperactivation of the amygdala and dysfunctions in prefrontal connectivity during episodes of frustration in people with autism, contributing to impulsive or aggressive reactions.

Therefore, disruptive behaviour reflects the brain's attempt to regain homeostasis; a kind of "adaptive short circuit" when usual resources (communication, calm, motor control) are unavailable.

From Pathologisation to Functional Understanding

Historically, challenging behaviours have been treated using punitive or control-based models. These strategies might cause immediate reductions, but they do not address the functional cause and, over time, increase the individual's anxiety and mistrust.

The functional approach proposes a revolution in perspective: from suppressing the behaviour to understanding its function.

Thus, the focus of intervention changes:

• From punishing to teaching.
• From judging the "what" to exploring the "what for".
• From obedience to self-regulation.

As clinical psychologist Diego Román summarises:

“At Ocnos, we don't punish the escape; we teach safe ways to ask for help or a break. The goal is not to subdue the behaviour, but to release the message it contains.”

Step-by-Step Functional Analysis: A Practical Look

Applying FBA rigorously requires both methodology and sensitivity. These are the essential phases:

1. Identification and Objective Description

The behaviour is defined using observable and measurable criteria: what the person does, in what context, and how often.

2. Data Collection

Through direct observations, interviews (family, teachers), and records (behaviour diaries), patterns of occurrence are documented.

3. Functional Hypothesis

Hypotheses are formulated, such as: “The child bangs the table to escape tasks that require reading.”

4. Function-Based Intervention

A positive teaching strategy is designed, such as teaching the child to use a visual card to request a "break" or progressively reducing task duration.

5. Evaluation of Effectiveness

Data is reviewed before and after to measure impact and adjust the intervention.

Functional Intervention: Teaching Alternative Behaviours

Once the function is understood, the goal is to replace the dysfunctional behaviour with a more adaptive one that serves the same purpose.

For example:

• Instead of screaming to escape, teaching how to ask for a "break" using a word, gesture, or symbol.
• Instead of hitting to gain attention, teaching how to tap someone gently on the shoulder or say the adult's name.

Differential Reinforcement

The Differential Reinforcement (DR) technique is one of the most effective and ethical strategies. It involves reinforcing only alternative or incompatible behaviours while avoiding reinforcement of the dysfunctional behaviour.

Example: If a child with ASD screams to get a tablet, and it is only given when requested via a symbol/pictogram, the system learns that requesting appropriately works better than screaming.

Variables to Consider in Functional Analysis

FBA cannot be applied mechanically. It requires taking into account multiple individual factors:

• Chronological age and level of development.
• Prior learning history.
• Sensory and motor capacities.
• Family and school environment.
• Medical status and medication.
• Sleep and eating patterns.

Behaviour is just the "tip of the iceberg"; beneath it lie the emotional, sensory, and social systems that influence the response.

The Role of Adults: From Control to Co-regulation

Before asking a child for self-regulation, we must offer co-regulation. This means that the adult lends their emotional resources to help the child calm down.

This involves: maintaining a calm tone of voice, reducing stimuli, accepting intense emotions without judgement, and giving meaning to what is happening (“I know you’re angry because this is difficult”).

At Ocnos Psychology Clinic, we teach parents and professionals emotional accompaniment and positive reinforcement strategies, so that the environment becomes part of the treatment, not an obstacle to it.

The Neuropsychological Perspective: Integrating Emotion and Cognition

The neuropsychological component of functional analysis recognises that behaviour is a bio-psycho-social process. There is no single cause; there are complex interactions between executive functions, emotions, language, and environment.

Studies (Cognitive Therapy and Research, 2019; Frontiers in Psychology, 2020) show that deficits in cognitive flexibility and sensory hypersensitivity are key predictors of disruptive behaviours in ASD. It is not a "lack of boundaries", but a real cerebral difficulty in adapting to change or ambiguous demands.

How it is Applied at Ocnos Psychology Clinic (Campo de Gibraltar)

At Ocnos, we work with an integrative model that combines functional analysis with individualised emotional regulation programmes, communicative intervention, and family counselling.

Methodology

• Full functional assessment.
• Collaborative intervention plan.
• Training in Augmentative and Alternative Communication (AAC).
• Parental and teacher training.
• Continuous review of results.

Case Study (Based on real adapted clinical practice)

• Child: 7 years old, ASD diagnosis.
• Issue: Hitting and screaming during school demands.
• FBA: Behaviour occurs during high-text tasks (reading escape).
• Intervention: Introduction of "break" symbols and graded tasks.
• Result: 75% reduction in aggressive incidents and increase in communicative requests over 3 months.

Common Myths about Challenging Behaviour

• “The child is doing it to manipulate.” A common error. Persistent behaviours indicate functional learning, not malicious intent.
• “They need more discipline.” Discipline without understanding only temporarily suppresses behaviour while worsening emotional distress.
• “They must get used to it; life doesn't adapt.” The environment is part of the treatment. Adapting doesn't mean giving in; it means providing the space for the person to learn successfully.

Prevention: Teaching Before the Problem Arises

The functional approach serves not only to correct problem behaviours but also to prevent them. Prevention involves reducing unnecessary demands, anticipating changes through visual supports, and teaching self-control strategies from an early age.

Scientific Evidence Supporting Functional Analysis

Research (O’Neill et al., 2015; Hanley et al., 2003; Beail, 2020) shows that FBA improves the reduction of challenging behaviours in up to 80% of cases and reduces the use of coercive measures. NICE Guidelines (UK, 2023) recommend functional analysis as the baseline tool for addressing neurodevelopmental behavioural issues.

Ethics and Support: The Human Side of Functional Analysis

FBA is not just a behavioural technique: it is an ethical stance. It means recognising the dignity of the individual and understanding that every behaviour has an internal and emotional logic. Treating behaviour with compassion means providing context, not just intervention.

Conclusion: Change the Perspective, Change the Story

When we understand that problem behaviour is not an enemy but a message, we stop focusing on putting out fires and start building bridges of communication.

I am Diego Román, and I look forward to welcoming you to Ocnos Psychology Clinic, in the heart of the Campo de Gibraltar.

References and Bibliography

• Hanley, G. P., Piazza, C. C., & Fisher, W. W. (2003). Functional analysis of problem behaviour: A review. Journal of Applied Behaviour Analysis, 36(2), 147–185.
• O’Neill, R. E., et al. (2015). Functional Assessment and Program Development for Problem Behaviour. Cengage Learning.
• Mazefsky, C. A. et al. (2015). Neural correlates of emotion regulation in autism spectrum disorders. Journal of Neurodevelopmental Disorders, 7, 14.
• NICE Guidelines (UK, 2023). Challenging behaviour and learning disabilities: prevention and interventions.
• Beail, N. (2020). Functional analysis and ethical intervention for challenging behaviour. Journal of Intellectual Disability Research, 64(4), 298–310.
• American Psychological Association (2024). Guidelines for treating behaviour disorders in developmental conditions.