advertisement
Home » ADHD » Blogs » ADHD Millennial » What’s the Role of Neuropsychological Testing in Diagnosing ADHD?

What’s the Role of Neuropsychological Testing in Diagnosing ADHD?

The holy grail of ADHD diagnosis is to have a test that tells you objectively, with no margin of error: yes, this person has ADHD or no, they don’t. We don’t have that yet, but we do have neuropsychological tests, which tell you something about how a person’s brain works.

A more complicated question is what, exactly, neuropsychological testing tells you. Is it possible to accurately diagnose ADHD based purely on neuropsychological tests?

BrainThe details vary from test to test, but in general the answer is no. Neuropsychological test results are one type of data that an experienced clinician will use in combination with questionnaires, interviews, and other tools to make an informed diagnosis.

To see why neuropsychological tests for ADHD are useful but also limited, consider a recent study on the Cambridge Neuropsychological Test Automated Battery, a set of tests known less tongue-twistingly as CANTAB.

The study found that CANTAB does identify executive functioning disorder fairly reliably. In other words, if you have impairments with things like planning, memory, attention, inhibition, processing speed and so on, the tests will likely pick that up.

And the study also confirmed that people with ADHD tend to have impairments in those areas. But the problem is that people can have deficits in those areas for plenty of other reasons, such as a different mental health or brain condition. In other words, the tests will tell you whether you have executive functioning impairments, but they won’t tell you whether those impairments are because of ADHD.

There are some neuropsychological tests designed to assess ADHD specifically. But even then the results aren’t clear-cut.

One popular neuropsychological test for ADHD is the TOVA, where the person taking the test has to watch and press a button whenever a certain shape appears. However, research suggests that intelligence can skew some of the test’s effects, with more intelligent children getting more false negatives.

All of which is to say that neuropsychological tests are informative, but they don’t provide conclusive diagnostic answers by themselves. A good doctor will use these tests in conjunction with other information and look at the big picture to make diagnosis.

Image: Flickr/Ivo Dimitrov

What’s the Role of Neuropsychological Testing in Diagnosing ADHD?


Neil Petersen

Neil Petersen writes regularly on education, learning disabilities and technology. He received his B.A. in 2014 and was diagnosed with ADHD at the beginning of his college studies. Neil also works for a music education non-profit and hopes to help create an education system that can better serve students with ADHD.


No comments yet... View Comments / Leave a Comment

 

 

APA Reference
Petersen, N. (2019). What’s the Role of Neuropsychological Testing in Diagnosing ADHD?. Psych Central. Retrieved on August 25, 2019, from https://blogs.psychcentral.com/adhd-millennial/2019/07/whats-the-role-of-neuropsychological-testing-in-diagnosing-adhd/

 

Last updated: 17 Jul 2019
Statement of review: Psych Central does not review the content that appears in our blog network (blogs.psychcentral.com) prior to publication. All opinions expressed herein are exclusively those of the author alone, and do not reflect the views of the editorial staff or management of Psych Central. Published on PsychCentral.com. All rights reserved.