Anhedonia and the Reward-Processing Reset: Treatments That May “Reboot” the Brain

Depression doesn’t always feel like sadness. Sometimes it feels like an absence. The songs you used to play on repeat do nothing for you. Food tastes fine, but not good. Hobbies feel dull. That joyless, what’s-the-point feeling has a name: anhedonia.

“When someone is depressed and anhedonic, they actually don’t like the same experiences that they used to enjoy — the pleasure, interest, and motivation are just kind of gone,” says David Klemanski, PsyD, chief psychologist at Harvard Psychiatry’s Cambridge Health Alliance.

For people with treatment-resistant depression, that loss of “wanting” and “liking” can be one of the most painful parts of the illness. It’s especially frustrating if you’ve already tried a couple of antidepressants and still feel like life has lost its color.

But that doesn’t mean your brain is stuck this way. There are better ways to directly target the circuits that drive motivation and reward. Here’s what to know about anhedonia and treatments that “reboot” the brain.

Why Some Antidepressants May Not Help Anhedonia

The biology of anhedonia is still hard to pin down. Researchers think whatever causes it involves several brain areas and chemicals that help you feel motivation and pleasure.

While serotonin plays a role, treatments that target serotonin alone, such as selective serotonin reuptake inhibitors (SSRIs), don’t always help much. That’s why experts think other brain chemicals and pathways matter more.

Some researchers think anhedonia may even be its own problem, one that exists alongside but is separate from depression. Another issue is treatment timing and fit. Some approaches, like medication, may work better for you at certain times but not others.

What’s important to know is that treatment-resistant doesn’t mean your depression can’t be treated. It just means you haven’t responded to the conventional drugs you’ve tried so far.

Anhedonia vs. emotional blunting

These two can overlap, but they’re not the same. Emotional blunting, or numbness, is more of a range problem. Your feelings are still there, but they’re less intense across the board.

“Anhedonia is a disconnectedness from pleasure or from satisfaction,” says Brandon Hamm, MD, assistant professor of psychiatry at Northwestern University Feinberg School of Medicine in Chicago and founder of the Northwestern Medicine Ketamine Infusion Clinic.

Many people who take SSRIs and serotonin-norepinephrine reuptake inhibitors (SNRIs) get emotional blunting as a side effect. Your doctor can help you figure out what’s going on.

Medications That Target Motivation and Reward

There’s no single medication that works best for anhedonia. But if loss of pleasure is a big part of your depression, your doctor may consider choices that work differently from standard antidepressants.

These include:

Bupropion (Wellbutrin). An atypical antidepressant that acts on norepinephrine and dopamine. Those are two brain chemicals tied more closely to energy, motivation, and reward.

Dextromethorphan/bupropion (Auvelity). A newer antidepressant that acts on N-methyl-D-aspartate (NMDA) and sigma-1 receptors. Bupropion adds norepinephrine-dopamine effects and also helps keep the Dextromethorphan active for longer.

Pramipexole. This is a dopamine agonist, which means it directly acts on dopamine receptors. Some doctors use it off-label for depression when motivation and reward seem especially impaired.

Vortioxetine (Trintellix). This drug acts on several serotonin receptors. Your doctor may suggest it if your depression comes with brain fog, slowed thinking, or emotional dullness.

Do stimulants help with anhedonia?

For some people, medications that act on dopamine and reward pathways can help improve mood and boost focus. But it’s not as simple as more dopamine equals less depression. “The thing from a hundred years ago was to give people cocaine for depression. Didn’t work. Adderall for depression doesn’t work for most people either,” Hamm says. “So, there’s something more complex going on.”

Ketamine and Esketamine

Ketamine and esketamine (Spravato) work on the brain’s glutamate system, which helps nerve cells communicate and form new connections.

Here are the basics:

• Ketamine is given through an IV in a clinic.
• Esketamine is a nasal spray given in a certified clinic.
• You may notice changes within hours or days.

One reason these treatments may help with anhedonia is how they affect the brain’s reward system.

In people who have depression, a small brain area called the lateral habenula — also called the brain’s anti-reward center — can get stuck in an overactive firing pattern. Think of it like your brain sending a constant “no reward” signal when you try to do something that should feel enjoyable.

Ketamine and esketamine appear to quiet and reset that pattern “immediately,” Hamm says. For some people, that shift can show up as feeling more engaged and connected — to yourself, others, or the world around you — even before other symptoms lift.

“When you say you’re more connected to yourself, and you walked in with a lot of self-hate, that’s a big treatment response, independent of your depression score,” Hamm says.

Transcranial Magnetic Stimulation (TMS)

Repetitive transcranial magnetic stimulation (rTMS) uses magnetic pulses to change activity in specific parts of the brain involved in depression. It’s not surgery, and you stay awake during treatment.

Those pulses create small electrical changes in the brain.

“When you change that activity, you change how brain circuits communicate,” says Susan Conroy, MD, PhD, director of the neurostimulation program in the department of psychiatry at the Indiana University School of Medicine in Indianapolis.

Over time, this may help rebalance circuits tied to motivation, focus, and reward. Those areas often don’t work together as well in depression.

What to know about TMS:

• Most people go for TMS sessions for five days a week for four to six weeks.
• Improvement may take a couple of weeks.
• Newer, faster protocols may work sooner.
• It can be uncomfortable, but it’s not harming you.

TMS most often targets the dorsolateral prefrontal cortex and nearby areas.

“This deeper region is very important in regulating mood, motivation, reward, and the anticipation of reward, which are key features of what’s missing in people who have anhedonia,” says Irving M. Reti, MBBS, a psychiatrist and neuromodulation expert at Johns Hopkins Medicine.

After treatment, you may find it easier to follow through with therapy, connect with others, or get back to daily routines. That matters because part of recovery is reengaging with your life once you’re well.

If you get TMS, Conroy has this advice: “Take your newly changed neuro-circuits out into the world and exercise them. That’s how treatment sticks.”

Electroconvulsive Therapy (ECT)

Electroconvulsive therapy (ECT) uses a brief electrical stimulus to trigger a short seizure while you’re asleep under anesthesia. This leads to rapid changes in brain activity.

“For patients who are profoundly ill and in the hospital, you can see an extraordinary change, often within a couple of treatments,” Reti says. “It’s almost like them waking up. They’ll tell you it’s the best they've felt in years, so it really is like a reboot.”

Researchers don’t fully understand all the ways ECT works. But it triggers the release of chemicals and targets multiple brain circuits at once, including ones involved in anhedonia.

“We think that the brain’s healing response to having a seizure is part of why people get better,” Conroy says. “And we know that parts of the brain talk to each other differently after a course of ECT.”

What to know about ECT:

• Treatments are usually given two to three times a week for several weeks.
• Temporary memory problems can happen, usually around treatment.
• Doses are lower and more precise than in the past.
• You’ll need someone to drive you home after each session.

ECT is widely considered one of the most effective treatments for severe depression. So if you haven’t gotten relief from other options, it’s worth discussing with your doctor.

“Just because TMS doesn’t work or medicines don't work, that doesn’t mean ECT won’t work,” Conroy says.

Behavioral Activation: Retraining the Reward System

Your brain learns by doing. And with behavioral activation, you don’t wait until you feel ready. You take action first and let motivation follow.

“It’s about making an active choice: I’m doing something to better myself in these moments when I’m feeling pretty crummy,” Klemanski says. “That reward activates the brain in a subtle way.”

When you take small, meaningful steps, even when you don’t feel like it, your brain starts to relearn that action can lead to something worthwhile. Over time, that can remind you that life can be interesting and pleasurable again.

In practice, that means planning small, concrete activities every day. You do them as best you can, even when part of you doesn’t want to.

You can start small:

• Take a shower or change clothes each morning.
• Walk around the block for 5-10 minutes.
• Send a quick text to one friend or family member.
• Cook one simple meal or eat a nutritious snack.
• Do a brief, guided mindfulness or grounding exercise.
• Help a neighbor or volunteer in a small way.

When possible, choose activities that matter to you or help you connect with others. “When it’s purpose-driven, the reward is already built in,” Klemanski says.

At first, you may not feel much different. But even small “that was worth it” moments add up.

“When your brain’s been hijacked by depression, you have to learn a new way to act within it,” Klemanski says. “Showing up even 1% more for yourself can go a long way.”

Vagus Nerve Stimulation and Deep Brain Stimulation: Where Do They Fit In?

You may also hear about vagus nerve stimulation (VNS) and deep brain stimulation (DBS). These treatments use targeted stimulation to change how brain circuits work. But they’re not commonly used for anhedonia. Deep brain stimulation is still experimental for people with depression. Early results look promising, but researchers are still trying to answer key questions: Does it clearly work? How long does it take? Who is most likely to benefit? If you have depression, you may be able to try DBS through a clinical trial. Vagus nerve stimulation is approved for treatment-resistant depression. But VNS is a surgery, so it’s more invasive. It also tends to work slowly. Symptoms improve over months or years, not weeks. But if you’ve already tried standard treatments, talk to your doctor about whether it might be right for you.