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You can cure insomnia with placebo: Research

Friday February 24, 2017 3:18 PM, ANI


Findings by Briton researchers, appeared in journal Brain, indicated that both neurofeedback and placebo-feedback to be equally effective as reflected in subjective measures of sleep complaints, which suggests that the observed improvements were due to unspecific factors such as - experiencing trust and receiving care and empathy from experimenters.

On this note, placebo is a substance or treatment with no active therapeutic effect. A placebo may be given to a person in order to deceive the recipient into thinking that it is an active treatment.

The team from Oxford University recruited 30 patients with primary insomnia, who underwent neurofeedback treatment and placebo-feedback treatment over several weeks.

They sought to test whether earlier findings on the positive effect of neurofeedback, on sleep quality and memory could also be replicated in a double-blind placebo-controlled study.

The patients spent nine nights and twelve sessions of neurofeedback and twelve sessions of placebo-feedback training.

Insomnia patients underwent this procedure before and after real as well as placebo neurofeedback training.

In between the first and second, as well as the third and fourth of these visits, insomnia patients completed twelve sessions of neurofeedback treatment and twelve sessions of placebo-feedback treatment.

The order of trainings, that is, real or placebo neurofeedback treatment was counterbalanced across the participants and the twelve sessions were completed within four weeks.

The participants' sleep-wake cycle was assessed using eight sleep laboratory nights, as well as sleep diaries and actigraphy over the course of the whole protocol.

They did not find an advantage of neurofeedback over placebo-feedback.

"Given our results," said lead author Manuel Schabus, "one has to question how much of published neurofeeback effects are due to simple expectations on the side of the participants or, in other words, unspecific placebo effects".

The study found that improvement of symptoms was not specific to neurofeeback training, but rather seems to have been brought about by unspecific factors such as affection and care.

Especially in patient populations where various complaints are often associated with learning difficulties positive neurofeedback effects beyond the subjective level may be hard to achieve.


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