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September 5, 2021

Ketamine for depression

Looking at Images of Smiling People Extends the Antidepressant Action of Ketamine

by - Dr. Gurpreet Singh Padda, MD, MBA, MHP

Looking at pictures of smiling faces after ketamine primes the brain makes its antidepressant effect last longer, a new study shows. Ketamine infusion works fast for many people whose depression does not respond to pills. But it does not work for everyone, so look at other options like post traumatic stress disorder and cluster headache treatments.

Depression is a serious mood disorder that is hard to treat. There are many antidepressant pills, but many people do not respond to them. In recent years, doctors have started trying ketamine infusion for depression. It seems to work fast in many cases. Now a new study shows that showing pictures of smiling faces after priming the brain with ketamine may make ketamine therapy last longer. But ketamine infusion may not work for everyone. It is important to look at other options like post traumatic stress disorder and cluster headache treatments.

Science confirms that smiles can be catching. And a new study finds that looking at happy faces helps ease depression. Just a century ago, depression was rare. But modern life has turned depression into an epidemic that affects millions of minds. Medicine has kept up and come up with dozens of drugs for depression. But despite all the research and new drugs, they work only moderately well.

Studies suggest antidepressants do not help much in many cases. Doctors often keep switching drugs until they see some benefit. Many patients do not respond to most drugs and get little benefit. Another drawback is that even when they work, they take a long time to kick in. Usually you can expect some benefit no sooner than three months.

Antidepressants often fail to help and take a long time to work. They are also quite toxic. They cause many side effects, dull thinking, and sometimes even make depression worse. So researchers keep looking for faster, better, and safer treatments. In the last few years, they have been trying many new approaches, like magic mushrooms or ketamine therapy.

Ketamine therapy is fast becoming popular for depression. Ketamine is an approved anesthetic drug. So it has a proven safety record. Recent studies show it also works well for depression. Unlike antidepressant pills, ketamine infusion may ease depression symptoms quite fast. It also seems ketamine can fully reset the brain in many cases, giving long-lasting relief.

Now researchers are looking for other ways to make ketamine therapy last longer. In the new study, researchers gave ketamine therapy to 154 people with depression that did not respond to treatment. After the ketamine infusion, they also showed them pictures of happy and smiling faces. Then they used a computer program to show the smiling faces automatically.

Interestingly, they found that pairing this simple method with ketamine infusion led to better results. The benefits of ketamine therapy also lasted longer. It seems ketamine resets the brain. If people see smiling faces right after ketamine therapy, it helps reprogram the brain and make real changes in it.

After ketamine therapy, people are much more open to what they are told. So they naturally get happier if they have positive experiences during this phase. They also tend to remember what they experience after ketamine therapy better. Showing pictures of smiling faces after ketamine therapy helps reprogram the brain. It works almost like hypnosis. The good thing is that it is very simple to do and completely safe.

So researchers strongly recommend retraining the brain after priming it with ketamine. Showing pictures of smiling faces on a computer may be an easy, low-cost way to do it.

Frequently asked questions

How can you make ketamine last longer for depression?

Retrain the brain right after the dose. In the new study, 154 people with depression that did not respond to pills got a ketamine infusion. Then they looked at pictures of happy, smiling faces, later shown by a computer program. Pairing the two gave better results and a longer benefit than ketamine alone. The step is simple, low cost and safe to add.

How does ketamine work for depression?

Ketamine seems to reset the brain. For a window after treatment, people are far more open to what they see and hear. They also remember those experiences better. Positive input during that window helps reprogram the brain, almost the way hypnosis works. That is why what happens right after a ketamine session matters. And it is why seeing smiling faces extends its effect.

Why try ketamine when antidepressants have not worked?

Because antidepressant pills work only moderately well for many people. Doctors often switch drugs again and again. Some patients respond to almost none of them. Relief often takes three months or more to show up. The drugs also cause side effects, can dull thinking and sometimes worsen depression. Ketamine can ease symptoms fast. That is why it is used for depression that does not respond to pills.

Is ketamine therapy safe?

Ketamine is an approved anesthetic with a proven safety record. That is part of why doctors adopted it for depression. The smiling-faces method in this study adds nothing risky. It is a picture-viewing task on a computer, simple to run and completely safe. Ketamine does not work for everyone, so other treatments stay on the table when it falls short.

Dr. Gurpreet Singh Padda, MD, MBA, MHP

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