[M1ch431]

What makes fMRI objective proof when the mental illnesses are largely subjective?

One psychiatrist could see a patient completely differently from another. You either have Alzheimer's or you don't. Your arm is broken or it isn't. It's measurable.

With mental illness, the line is blurred. I've never seen compelling evidence for fMRI - just circular reasoning. Psychiatrists who buy into this paradigm posit that the disease exists because in these populations of heavily medicated, subjectively diagnosed (heavily traumatized/stressed) individuals, there are similarities between them in the activity of their brain.

Perhaps it's just their disease-first perspective that I take issue with when it comes to fMRI. You could validly look at these populations completely differently without subjective disease terminology and be logically sound with your findings, such as; people tested who experienced more traumatic events in their lifetime and seeing how their brain lit up vs. people who did not experience traumatic events. Or how people respond in institutionalized situations vs. less formal situations, etc.

The person you are responding to shares the same general thinking that I have: medically, there is no disease if there is no measurable physical damage.

As a doctor when you are arguing that somebody has a disease, especially a disease that is thought to be lifelong or perhaps genetic in nature, it's your job to prove that. A check-list of symptoms isn't enough proof. And by going through these lists you are stereotyping your patient. Studying people diagnosed in this way and forming correlations in these heavily stressed, vulnerable populations proves nothing besides perhaps how stressed they are and the different ways that stress is expressed throughout the population.

But when you factor treatment into the mix, physical study of the brain frankly becomes worthless if you are applying it broadly. It could be that fMRI is more or less finding that people on Lexapro or Lithium (whatever the common prescription for an illness is) respond a certain way. Or that individuals experiencing specific types of heightened states (like mania) respond a certain way.

What we are not saying is that there is not suffering, that symptoms don't exist, that symptom groupings (like ADHD) aren't bad or good, it's the disease terminology and intellectual dishonestly of the psychiatric field that we are pointing out.