Tag Archives: Oz

Brain Scans and Psychics

steven_novellaby via NeuroLogica Blog

In a trifecta of pseudoscience, Dr. Oz calls upon Dr. Amen to demonstrate (live on TV) how the Long Island Medium is real.

Where do I begin?

Dr. Oz has long ago abandoned any scientific legitimacy, not to mention self-respect. He has gone from giving basic medical advice, to promoting alternative quackery, and now he is just another daytime TV sellout, gushing over psychics. With Dr. Oz, however, it is all done with a patina of science.

The Medium

LongIslandMedium_250pxTheresa Caputo is just another fake psychic doing bad cold readings before audiences that have more of a desire to believe than apparent critical thinking skills. Her performance on Dr. Oz is fairly typical – she fishes with vague and high probability guesses, working multiple people at once, who then struggle to find some connection to what she is saying.

For example, she tells one mark who is trying to connect with her father, “Your father wants to talk about  the coin collection?” This is a great vague statement. First, it is one of those statements that seems very specific, but in actuality is a high probability vague statement. Anything to do with coins can seem to be a hit, and in the fairly good chance that an older gentleman had a literal coin collection it will seem like a fantastic hit.

In this case, however, the target found a nice face-saving hit. Apparently another psychic told the same person that her father sends her “pennies from heaven.” There you go.

psychic 856_250pxIn another segment with Caputo she demonstrates almost a parody of terrible cold reading. She senses a father figure and a daughter figure. She says to an entire audience that someone lost a father and someone lost a daughter. She also goes out on a limb and says – something to do with the chest. Shockingly, someone from the audience steps forward. Caputo then makes two clear misses. She says that she senses the person was lost suddenly. The target clearly indicates this was not the case, at which time Caputo tries to recover by saying that – even when someone is ill, we did not expect to lose them at that exact moment. Right. She then goes for the daughter, which is also a clear miss, leading to that awkward moment when an alleged psychic so thoroughly fails that they struggle to find an escape hatch.

I also found it interesting that when asked about the brain scan test she was about to have, Caputo responded by saying that no matter what the tests show, she just wants to help people. She was seemingly pre-rationalizing for possible failure. Infer from that what you will.

Dr. Daniel Amen

Dr. Amen as made millions of dollars proving SPECT scans for a long list of diagnoses.  SPECT scans use a radioisotope to track blood flow in the brain, which can be used to infer brain activity. The problem with SPECT scan is that there is a tremendous amount of noise in brain activity so you need to be very careful about interpreting the results. There is some utility in looking for dead areas of the brain following a stroke, for example. SPECT has also been used to localize seizures (increased activity during a seizure and then decreased activity following the seizure).

SPECT Imaging

SPECT Imaging

Clinical use of SPECT, however, has been very limited because it is just too noisy. The test often does not have good specificity. Amen is using SPECT for a wide range of indications for which it has not been validated – we do not have data to show that the results of the test can be used to predict confirming diagnostic tests or response to treatment. But SPECT is very useful for generating pretty pictures that seem scientific and can be used to imagine any result you wish.

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