A study published 8 October 2017 by three psychologists and a neuroscientist surveyed 3,715 members of American Mensa (persons whose IQ score is ostensibly within the upper 2% of the general population), who were asked to self-report diagnosed and/or suspected mood and anxiety disorders, attention deficit hyperactivity disorder, and autism spectrum disorder. There was no actual control group; instead they manipulated statistical data to simulate a control group.
[High intelligence: A risk factor for psychological and physiological overexcitabilities, Ruth I. Karpinski (Pitzer College) et al. https://doi.org/10.1016/j.intell.2017.09.001]
Diagnostic criteria were taken from DSM-IV, a fraudulent list of so-called “mental disorders.” The main thrust of the survey was to try to link intelligence in some way with something they called the theory of “psychological overexcitability,” which has no basis in actual fact. Then they massaged the data with extensive statistical analyses in order to come up with the conclusion they favored, which was, “Those with high IQ had higher risk for psychological disorders.”
The basic flawed assumption of this piece of poo-poo is their statement that, “those with a high intellectual capacity (hyper brain) possess overexcitabilities in various domains that may predispose them to certain psychological disorders.” The implication being that a “treatment” for psychological disorders might be something that lowers a person’s IQ.
Then they quoted 160 references in order to overwhelm any readers of the study with its bona fides — it must be right because look how many references can be quoted.
Naturally, due to the inherent flakiness of the research, they concluded that further research was needed; and because of the particular methodology of this study, the results conveniently cannot be compared with any other studies about intelligence and health. The authors also recommended further studies with mice instead of people, as if those results could yield any useful information about human intelligence.
There are a number of limitations which cast doubt on the study results. The raw data was self-reported, so it is subject to interpretation, bad memory and bias. There are over 200 different IQ tests which applicants can use to apply for membership in Mensa, so IQ itself is subject to interpretation. All of the participants were American, which may or may not be a limitation depending on other demographic or environmental factors. The simulated control group statistics made exact comparisons challenging, to say the least.
Without an actual, clear-cut definition of intelligence, this kind of research is hopelessly convoluted and clueless; but nevertheless representative of what many psychologists think about the rest of us intelligent beings.
Consider this interesting quote from another source: “We would do well to recollect the early days of applied clinical psychology when culturally biased IQ testing of immigrants, African Americans and Native Americans was used to bolster conclusions regarding the genetic inheritance of ‘feeble-mindedness’ on behalf of the American eugenics social movement.”
Not to be outdone by psychologists, the psychiatric industry has a history of deliberately reducing their patient’s intelligence, evidenced by this 1942 quote from psychiatrist Abraham Myerson: “The reduction of intelligence is an important factor in the curative process. … The fact is that some of the very best cures that one gets are in those individuals whom one reduces almost to amentia [feeble-mindedness].”
Evidence that electroshock lowers IQ is certainly available. Also, psychiatrists have notoriously and falsely “diagnosed” the creative mind as a “mental disorder,” invalidating an artist’s abilities as “neurosis.” There is certainly evidence that marijuana lowers IQ (no flames from the 420 crowd, please) — and marijuana is currently being promoted by the psychiatric industry to treat so-called PTSD.
Psychotropic drugs may also be implicated in the reduction of IQ; what do you think? These side effects from various psychotropic drugs sure sound like they could influence the results when someone takes an IQ test while on these drugs: agitation, depression, hallucinations, irritability, insomnia, mania, mood changes, suicidal thoughts, confusion, forgetfulness, difficulty thinking, hyperactivity, poor concentration, tiredness, disorientation, sluggishness.
If you Google “Can IQ change?” you’ll find about 265 million results; so this topic has its conflicting opinions. And as in any subject where there are so many conflicting opinions, there is a lot of false information. Unfortunately the “research” cited above just adds more poo-poo to the pile.