ATTENTION

What is attention?

Attention is the selection of information for further processing.

There is too much information around us to process everything, so attention allows us to select what is relevant to our current goal and filter out irrelevant information.

Attention is usually goal-directed, but it is not completely voluntary - salient information, such as a sudden noise, can automatically capture attention.

Why is attention important?

Attention is a gateway to other cognitive functions. If a child does not attend properly when information is presented, this can affect:

• learning

• memory/encoding

• language performance

• executive-function performance

• general test performance.

Therefore, apparent difficulty in another domain may sometimes be secondary to poor attention.

What aspects of attention can be assessed?

Attention is not one single ability. Assessment may examine:

• Selective attention - selecting relevant information while ignoring distractions.

• Sustained attention/vigilance - maintaining attention over time.

• Attentional control - directing attention according to the current goal.

• Response inhibition - withholding inappropriate responses; this overlaps with executive functioning.

This overlap creates task impurity - an "attention" task may also require inhibition, processing speed, working memory or other abilities.

Attention ≠ ADHD

This is a key distinction:

Attention is a cognitive function. ADHD is a clinical/neurodevelopmental diagnosis.

Poor performance on an attention test does not diagnose ADHD, and normal attention-test performance does not necessarily rule it out.

ADHD assessment requires wider evidence including:

• developmental and clinical history

• symptoms and functional impairment

• behaviour across settings

• parent/teacher information

• observation/interview.

Objective attention tests are therefore one part of the assessment, not the diagnosis itself.

Why use more than one source of information?

Attention in a structured testing room may be very different from attention:

• throughout a school day

• during homework

• in a distracting classroom

• during boring everyday activities.

So assessment should integrate:

objective cognitive tests + behavioural information + observation + developmental/medical history.

Key interpretation rule

If a child performs poorly on an attention test, ask:

Is this genuinely an attention difficulty, or could inhibition, fatigue, motivation, anxiety, processing speed, language, sensory difficulties or another cognitive problem explain the score?

So the overall principle is:

Never interpret an attention-test score in isolation - interpret it within the child's wider cognitive, developmental, neurological and everyday profile.

Attention Tests - CPT and TEA-Ch2

Both assess attention, but they answer different questions:

CPT = mainly sustained attention/vigilance through one continuous repetitive task.
TEA-Ch2 = broader battery separating different aspects of attention across multiple tasks.

1. CPT - Continuous Performance Test

What is it?

A Continuous Performance Test (CPT) presents the child with a continuous stream of visual or auditory stimuli.

The child must:

respond to targets + withhold responses to non-targets/distractors.

For example:

A → F → X → B → X → D...

The child might be told to press for every letter except X.

This requires them to:

watch → identify → respond/inhibit → continue watching.

What does it measure?

Primarily:

• sustained attention

• vigilance

It also involves:

• response inhibition

• attentional errors

• response consistency

• sensitivity (d′).

Therefore, it is not a pure measure of attention because executive control is also required.

Why is it deliberately boring?

The repetitive, monotonous nature of the task is intentional.

An interesting task might automatically maintain the child's attention. A boring task places greater demands on their ability to sustain attention themselves.

The disadvantage is that it can be unpleasant and difficult for children to tolerate.

Conners CPT-3

Conners Continuous Performance Test - Third Edition

• Age: approximately 8+

• Time: approximately 14 minutes

• Format: computerised continuous-performance task.

Important scores

You can examine:

• overall errors

• sensitivity (d′)

• response times

• response-time variability

• patterns of performance over time.

The subtraction problem

Simply measuring decline over time can be misleading.

Child A: Good → Good → Average → Poor
= large decline.

Child B: Poor → Poor → Poor → Poor
= little decline.

Child B has not demonstrated good sustained attention - they were simply performing poorly from the beginning.

Therefore, overall errors and sensitivity (d′) may be more useful than relying only on deterioration over time.

CPT strengths

• Provides an objective measure of attentional performance.

• Specifically taxes sustained attention/vigilance.

• Can detect subtle difficulties that may not be recognised by parents or teachers.

• Useful alongside behavioural information.

CPT weaknesses

• Task impurity - performance also depends on response inhibition.

• Repetitive and boring.

• Some higher-functioning children may perform adequately for 14 minutes despite everyday difficulties.

• Limited ecological validity - a short structured computer task is very different from maintaining attention throughout a school day.

• Cannot diagnose ADHD by itself.

2. TEA-Ch2 - Test of Everyday Attention for Children, Second Edition

What is it?

The TEA-Ch2 is a standardised battery designed to assess separable aspects of attention in children.

Unlike the CPT, it does not rely on one continuous paradigm. It uses a combination of paper-based and computerised tasks to build a broader attentional profile.

It was designed to be relatively child-friendly and engaging, using a comic-style format.

What does TEA-Ch2 measure?

TEA-Ch2 provides an overall:

Everyday Attention Index

and separates attention into:

1. Selective Attention

Can the child focus on relevant information while filtering out irrelevant information?

2. Sustained Attention

Can the child maintain attention and appropriate responding over time?

3. Attentional Switching

For older children:

Can the child flexibly shift attentional focus according to changing task demands?

This third component overlaps particularly strongly with executive functioning.

Age range

TEA-Ch2 covers 5-15 years, but there are different versions for younger and older children.

TEA-Ch2J - ages 5-7

A shorter and simpler version designed for younger children.

Administration: approximately 30-40 minutes.

It assesses:

• Selective Attention

• Sustained Attention.

TEA-Ch2A - ages 8-15

A longer version for older children.

Administration: approximately 40-55 minutes.

It assesses:

• Selective Attention

• Sustained Attention

• Attentional Switching.

TEA-Ch2 tasks

Ages 5-7 - TEA-Ch2J

Selective Attention

• Balloon Hunt

• Balloon Hunt 5

• Hide and Seek Visual

Sustained Attention

• Barking

• Sustained Attention to Response

• Simple Reaction Time

• Hide and Seek Auditory

There is no separate Attentional Switching index for this younger age group.

Ages 8-15 - TEA-Ch2A

Selective Attention

• Hector Cancellation

• Hector B Cancellation

• Hecuba Visual Search

• Troy Dual Task

Sustained Attention

• Vigil

• Sustained Attention to Response

• Simple Reaction Time

• Cerberus

Attentional Switching

• Reds & Blues, Bags & Shoes.

So your old section saying only:

Vigil, STS and Reds, Blues, Bags, Shoes

should be replaced with the full task structure above.

Why is TEA-Ch2 different from the CPT?

The CPT mainly asks:

"Can this child keep paying attention during one long, repetitive task?"

TEA-Ch2 asks a broader question:

"What are this child's strengths and weaknesses across different components of attention?"

For example, a child could have:

good selective attention + poor sustained attention

or:

good sustained attention + poor attentional switching.

Simply saying that the child has "poor attention" would miss that distinction.

TEA-Ch2 strengths

• Separates different components of attention.

• Provides a broader attentional profile than a single CPT.

• Covers a wide paediatric age range of 5-15 years.

• Has separate age-appropriate versions for younger and older children.

• Uses both paper-based and computerised tasks.

• Designed to be more engaging and child-friendly.

• Provides an Everyday Attention Index and specific attention indices.

• Automated scoring for computerised subtests.

• Provides scaled scores and percentile ranks.

• Can help identify different patterns of cognitive strengths and weaknesses.

• Can be used to inform intervention and monitor outcomes.

TEA-Ch2 normative data - UPDATE THIS

Your old notes about 621 children being divided into 18 small age × sex cells should not be carried forward as the description of TEA-Ch2 norms.

The new TEA-Ch2 uses regression-based norms rather than simply splitting children into small traditional cells.

UK standardisation included:

• 621 children aged 8-15

• 394 children aged 5-7

= 1,015 children overall.

The regression-based norms take account of:

• age

• sex

• family education.

The brochure describes the sample as representative of the UK population and reports improved psychometric properties.

Why is this better?

Instead of saying:

"This 8-year-old boy is compared only with the small group of 8-year-old boys",

regression-based norms can use the wider normative dataset while statistically accounting for relevant variables.

So the previous small normative cell criticism applies to the older TEA-Ch material, not in the same way to TEA-Ch2.

TEA-Ch2 limitations / interpretation issues

Even though TEA-Ch2 separates aspects of attention, the tasks are not completely process-pure.

For example:

Attentional Switching
→ also involves executive functioning/cognitive flexibility.

Other tasks can also depend on:

• processing speed

• understanding instructions

• response speed

• visual or auditory processing

• motivation.

Therefore:

Low TEA-Ch2 score ≠ automatically a pure attention deficit.

This is still the problem of task impurity.

Also, despite its name, a standardised test cannot completely recreate the complexity of attention during an actual school day.

CPT vs TEA-Ch2 - updated comparison

Easiest distinction to remember

CPT = depth: specifically examine whether the child can sustain attention during a continuous boring task.

TEA-Ch2 = breadth: examine different components of attention across several tasks.

3. Where does NEPSY-II fit?

NEPSY-II can also assess attention, particularly through:

Auditory Attention

Assesses:

• selective attention

• sustained auditory attention

• response speed

• inhibition.

Response Set

Adds greater executive demands:

• attention

• inhibition

• switching.

Why use NEPSY-II instead?

It may be useful when:

• the child is young

• you specifically want auditory attention

• you want to examine the interaction between attention and executive control

• NEPSY-II is already being used as part of the child's wider neuropsychological battery.

Why use it alongside CPT or TEA-Ch2?

Different tests place different demands on attention:

CPT → sustained attention/vigilance in one continuous task
TEA-Ch2 → broader profile of selective, sustained and switching abilities
NEPSY-II Auditory Attention → selective + sustained auditory attention
NEPSY-II Response Set → attention + inhibition/switching

Multiple measures can provide converging evidence, particularly if there is uncertainty about whether a low score reflects attention itself or the demands of one particular task.

But you do not automatically need all three. Test selection should be driven by the referral question and the child's age/profile.

Final interpretation rule

Regardless of whether you use CPT, TEA-Ch2 or NEPSY-II:

Attention test ≠ ADHD diagnosis.

Interpret the findings alongside:

objective tests + behaviour during assessment + parent/teacher reports + developmental/medical history + wider cognitive profile + everyday functioning.