Yesterday I promised that I would get to the proof of the existence of ADD/ADHD that we can see in the SPECT scans, and I will. But first, just a few more preliminary details about ADD/ADHD, and a brief mention of the opponents view of it.
Even though these children have a short attention span, when participating in tasks they enjoy, such as video games, they have no problem staying focused.[i] Opponents of ADD/ADHD quickly point this out in refuting the validity of a ADD/ADHD diagnosis.
However, in understanding the role of the prefrontal cortex we find the explanation for this too. The prefrontal cortex is responsible for inhibiting the perception of extraneous events, allowing the child to concentrate.
A poorly functioning prefrontal cortex fails to do this, focus drifts, and the child becomes distracted. Highly stimulative, unusual or even frightening situations, such as video games, keep the prefrontal cortex stimulated, engaged, and block out distractions. This enhances focus and concentration, and prevents the child from getting bored and distracted.
By observing the behavior of those with ADD/ADHD, and understanding the functions of the prefrontal cortex, one may hypothesize that this area of the brain is indeed suspect. We need a way to determine the validity of this hypothesis, and this is where the value of SPECT comes into play (finally we get here!).
The following SPECT images dramatically illustrate a clear difference in these brains (all photos courtesy of Amen Clinics).
Fig. 1 Normal Brain
In Fig. 1, we see the brain of a normally functioning person. You will notice that this brain is smooth, has no voids, and few depressions of any kind.[ii]
Fig. 2 ADD/ADHD At Rest
In Fig. 2, we see the resting brain of someone diagnosed with ADD/ADHD while he or she is not concentrating on anything, but is at rest.[iii]
The dissimilarity in the appearance of the two is obvious, even at rest. The brain in Fig. 2 has many voids and depressions indicating that something is clearly different.
If researchers are correct about ADD/ADHD we should see a difference between a resting ADD/ADHD brain, and the same brain when it is concentrating, and we should especially see the inhibition of the prefrontal cortex.
Fig. 3 ADD/ADHD Concentrating
In fact, that is exactly what we find in Fig. 3, and it is easy to see that the voids and depressions in the already malfunctioning brain become even more pronounced. Further, a large part of the prefrontal cortex, shown at the top of fig. 3, simply disappears, just as the hypothesis predicts.
If this research is repeatable, and the visible differences generalize to the population at large, and if we find no other explanation for these differences, it is rational to believe that ADD/ADHD is a valid diagnosis, and it is not simply willful disobedience or rebellion on the part of the child.
So science and modern technology show us that ADD/ADHD is real, even though our Bible does not mention anything about it. However, simply because the science is real, does not mean that our Bible is wrong. It just means that the Bible is silent on the matter. But what do we do with that information, if anything?
Researchers have discovered that certain stimulant medications, such as Cylert, Ritalin and Adderall can treat ADD/ADHD effectively.[iv] Exactly how these stimulants work is unclear, but researchers believe they work by increasing the available amount of the neurotransmitter, dopamine found within the brain.[v]
With more dopamine available to do its assigned task, the child is able to block out extraneous internal and external “noise” and stay on task.
If SPECT scans can detect the existence of ADD/ADHD, they should certainly show any improvement that medication brings about.
Fig. 4 ADD/ADHD Concentrating w/Adderall
Figure 4 clearly shows a brain that is functioning more normally after the person has taken the stimulant Adderall. This brain is much smoother, has no voids, and most importantly, the prefrontal cortex is no longer AWOL as it was in Fig. 3, but now appears to be functioning normally.
To the parents and teachers of the ADD/ADHD child this medication is a blessing; but to the child, this may be a double-edged sword, bringing both blessing and curse.
As with all medications, these stimulants have side effects, not the least of which is nervousness and insomnia.[vi] Cylert has the potential to cause liver damage, and all the stimulants, if not carefully controlled, can be addictive. Furthermore, there is a possibility that the medications could cause Tourette’s syndrome or involuntary tics.
However, as bad as these things may be, they are not the worst damage that can be done to the one taking these medications to control ADD/ADHD.
Tomorrow we will look at the other side of the medications.
So, that’s the world as Donnie sees it.
God bless,
Donnie See
[i] Ibid
[ii] “SPECT Atlas Image Viewer,” Amen Clinics, http://www.amenclinics.com/brain-science/spect-image-gallery/spect-atlas/viewer/?img=NLTOP.jpg (accessed July 07, 2010).
[iii] “Images of Attention Deficit Disorder ADD/ADHD,” Amen Clinics, http://www.amenclinics.com/brain-science/spect-image-gallery/spect-atlas/images-of-attention-deficit-disorder-addadhd/#adhd (accessed July 07, 2010).
[iv] Frank Minirth, Paul Meier M.D. and Stephen Arterburn, Miracle Drugs – How They Work And What You Should Know About Them (Nashville: Thomas Nelson, 1996), 53-54.
[v] Ibid. 46-47
[vi] Ibid. 52