#placeboeffect — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #placeboeffect, aggregated by home.social.
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DATE: August 10, 2026 at 02:00PM
SOURCE: PSYPOST.ORG** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------TITLE: Introverts experience greater mood elevations from antidepressant placebos than extraverts
A recent study published in the International Journal of Neuropsychopharmacology indicates that people with natural tendencies toward lower positive moods tend to experience greater mood boosts from both antidepressant placebos and a dopamine-altering drug. The research suggests that an individual’s baseline personality traits, such as introversion and their natural ability to experience pleasure, play a major role in how they respond to treatments aimed at improving mood.
Human beings naturally vary in their daily capacity to experience positive emotions. Some people naturally have high levels of extraversion, meaning they tend to be outgoing, energetic, and cheerful. Others experience higher levels of anhedonia, a psychological term for a reduced ability to feel pleasure, joy, or motivation. Both of these personality dimensions are closely tied to how the human brain processes dopamine, a chemical messenger deeply involved in reward anticipation and motivation.
Past research indicates that expecting a medical treatment to work can trigger the brain’s dopamine system, leading to real improvements in mood. This psychological phenomenon is commonly known as the placebo effect. In the context of depression, the simple belief that a pill will boost mood can sometimes act as its own reward, stimulating dopamine release and alleviating symptoms.
It was not entirely understood whether a person’s baseline dopamine-related traits, such as anhedonia or extraversion, influence the strength of these mood-boosting placebo responses. A research team led by Li-Ching Chuang at the University of Marburg designed an experiment to test this dynamic. The scientists aimed to see how personal differences in baseline emotional traits might change how healthy people react to an actual dopamine-altering drug, as well as their reaction to the mere expectation of receiving an antidepressant.
To explore this, the researchers recruited 293 healthy adults between the ages of 18 and 60 for a randomized, double-blind study. Before the main experiment, participants completed comprehensive questionnaires to measure their baseline personality traits. This included a 30-item survey to measure trait anhedonia, where participants rated their recent lack of positive emotions. They also completed a personality inventory to measure trait extraversion.
On the day of the experiment, participants arrived at the laboratory in the morning and provided a baseline blood sample. They were then given two identical capsules to swallow. The researchers manipulated treatment expectations through specific verbal instructions. Half of the participants were told that the capsules contained a mood-elevating medication that would begin to take effect in about three hours. The other half were told the capsules contained an inactive, inert substance.
In reality, the physical contents of the capsules were also randomized regardless of what the participants were told. Half of the total participants received actual inactive placebos. The other half received 400 milligrams of sulpiride. Sulpiride is a medication that blocks specific dopamine receptors in the brain. At this specific dosage, it can alter how dopamine functions, sometimes increasing dopamine signaling by blocking the autoreceptors that normally tell the brain to stop producing it.
Following the pill intake, participants rested and were provided a standardized meal. About three hours later, which aligns with when sulpiride reaches its peak concentration in the bloodstream, a second blood sample was drawn. The researchers measured prolactin, a hormone that reliably increases in response to sulpiride, to confirm the drug was physically active in the body.
Over the next several hours, participants completed various computer tasks. At six different time points throughout the session, participants rated their current state of positive affect using a standardized mood scale. This required them to rate how strongly they were currently feeling positive emotions like interest, excitement, and alertness.
The researchers found that neither the expectation of receiving an antidepressant nor the physical sulpiride pill increased positive emotions across the entire sample of participants. Instead, the treatment effects depended heavily on a person’s baseline personality traits.
Specifically, individuals who naturally scored high in trait anhedonia experienced a gradual increase in their current positive emotions when they took the active sulpiride medication. For these individuals, the dopamine-altering drug successfully boosted their mood. On the other hand, participants with naturally low anhedonia experienced a decrease in positive emotions after taking the exact same drug.
A very similar pattern emerged for the psychological expectation of receiving an antidepressant. Participants who scored low in extraversion, commonly known as introverts, experienced a noticeable increase in positive emotions when they were told they were taking a mood-boosting drug. The belief that they were being treated elevated their mood. In contrast, highly extraverted individuals reported reduced positive emotions when given the same antidepressant instructions.
The researchers also statistically combined these overlapping personality traits into a broader category called general positive affectivity. When looking at this combined measure, the scientists noted that individuals who naturally experience fewer positive emotions in their daily lives were the ones most likely to feel a temporary mood boost. Both the physical dopamine-altering drug and the psychological placebo instructions were most effective for those with a lower baseline of positivity.
These findings do not necessarily mean that positive expectations or dopamine treatments are biologically ineffective for generally happy people. Individuals with naturally high levels of positive emotion might simply hit a measurement ceiling effect in a laboratory setting. Because their mood is naturally quite high to begin with, a single dose of a drug or a positive expectation might not be capable of elevating it much further on a standardized rating scale.
The observed decrease in positive emotions among highly extraverted and low-anhedonia individuals under these conditions might also reflect the natural fatigue of participating in a controlled laboratory experiment. Sitting in a clinic for several hours performing computer tasks could naturally drain the enthusiasm of an extraverted person, leading to the observed drop in positive feelings over time.
The study also relied entirely on a healthy sample of adults who do not have clinical diagnoses of depression. Responses to dopamine-altering drugs and placebo expectations operate differently in individuals experiencing severe, clinical depression. The neurological state of a clinically depressed brain often involves more pronounced disruptions in dopamine signaling than what is seen in healthy individuals with mild anhedonia. Future investigations could test these identical procedures on clinical populations to see if the same personality traits dictate treatment success in patients actively seeking psychiatric care.
The study, “Individual differences in dopamine-related traits influence mood effects of dopamine D2-antagonist and antidepressant treatment expectations,” was authored by Li-Ching Chuang, Nick Augustat, Philipp Bierwirth, Ty Lees, Diego A. Pizzagalli, Dominik Endres, and Erik M. Mueller.
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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #IntrovertsMoodBoosts #PlaceboEffect #DopamineResearch #Anhedonia #Extraversion #MoodEnhancement #AntidepressantPlacebo #PsychoPharmacology #DopamineD2 #PersonalityAndMood
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🦇 Holy placebo effect, Batman! This "research" claims donning a cape turns you into a hero, but it sounds more like a plot for a low-budget #superhero flick. 🤦♂️ Next, they'll say wearing tights will make you fly! 🚀
https://www.nature.com/articles/s44184-025-00171-5 #placeboeffect #research #capes #humor #lowbudgetfilm #HackerNews #ngated -
DATE: July 31, 2026 at 12:00PM
SOURCE: PSYPOST.ORG** Research quality varies widely from fantastic to small exploratory studies. Please check research methods when conclusions are very important to you. **
-------------------------------------------------TITLE: Dummy pills reveal the hidden power of human expectation in addiction recovery
Patients being treated for addiction routinely experience a reduction in substance cravings simply from taking an inactive dummy pill, particularly those dealing with alcohol dependence. These findings suggest that the medical community might be able to harness a patient’s expectations to improve treatment outcomes. The research was published in The Journal of Clinical Psychiatry.
A placebo is a biologically inactive substance, such as a sugar pill, that is used in medical experiments to simulate an actual drug. Doctors use these inert pills to establish an essential baseline of comparison. By giving one patient group a real medicine and another group an inactive substitute, researchers can isolate the true chemical impact of a new pharmaceutical.
These inactive substances frequently produce genuine changes in human health. When a patient takes a dummy pill, their symptoms often improve in an observable way. This happens in part because the human brain anticipates relief, setting off biological responses that occasionally mirror actual medication.
Repeated behavior also shapes this physical response. The simple ritual of going to a clinic, interacting with a health care provider, and swallowing a daily pill conditions the mind to expect a therapeutic benefit. This combination of expectation and routine can powerfully reduce feelings of distress, physical pain, and overwhelming anxiety.
Medical researchers have extensively documented this phenomenon across a wide array of mental health conditions. A recent analysis of nine different psychiatric diagnoses showed enormous variation in symptom improvement from dummy pills alone. Conditions tied closely to mood, like depression, exhibited massive improvements when patients simply believed they were receiving treatment.
In contrast, conditions grounded in different brain patterns, like schizophrenia, hardly responded to dummy pills at all. That prior analysis left out one major category of mental health struggles entirely.
“Bschor et al. (2024) did a great meta-analysis on placebo treatment across nine psychiatric disorders and showed that symptom severity improved with placebo in all psychiatric disorders, but varied between the disorders,” said Dr. Pim B. van der Meer, a physician and researcher at University Medical Center Utrecht in the Netherlands. “They did not include substance use disorders, despite substance use disorders being such a common and severe problem. This motivated us to conduct our current study.”
Van der Meer and a team of European experts wanted to figure out exactly how much dummy pills might alleviate the core symptoms of addiction. They focused their attention entirely on the sensation of craving.
Craving is defined as a persistent, intense urge to consume a specific drug. It is a central feature of addiction, frequently driven by environmental stress or the initial stages of biological withdrawal. Because craving is a subjective experience reported by the patient on a continuous numerical scale, it can be tested mathematically in a way that is highly similar to measuring feelings of sadness or ambient worry.
The research team conducted a systematic review and meta-analysis to search for broad patterns. This process involves grouping together all the available numerical data from past experiments to find an overarching mathematical trend. They searched eight different global research databases using terms related to addiction, craving, and placebos.
Their initial sweep yielded almost 2,000 unique records. The researchers read through study titles and abstracts to weed out anything that did not meet strict scientific criteria. They gradually whittled the list down to 115 full articles, which they read in full before finalizing a group of nine studies.
“What surprised me the most is the limited number of RCTs that were eligible,” van der Meer said.
All nine of these selected studies were randomized controlled trials. In these types of medical experiments, patients are assigned to medication groups entirely by chance. They were also strictly double-blind, meaning neither the actual patients nor the doctors administering the treatment knew who was receiving the authentic medication.
The included trials focused on oral treatments for three distinct forms of addiction. Five trials looked at individuals recovering from alcohol dependence. Two studies focused on cocaine dependence, and another two studies tracked individuals trying to stop using methamphetamine.
Across the nine studies, the researchers gathered data on 495 patients who were placed into placebo groups. This included 300 patients dealing with alcohol addiction. The stimulant groups featured fewer participants, with 88 patients for cocaine and 107 patients for methamphetamine.
The scientific team extracted specific numbers regarding how strongly the patients rated their urges to use substances before the trial began. They then pulled the exact same numbers collected at least four weeks into the treatment process. They specifically looked at people taking a daily oral capsule rather than a patch or injection to ensure the physical routines were identical.
The researchers noticed a distinct pattern across the gathered data. Following four weeks of daily placebo treatment, craving scores decreased consistently across all three types of addiction. Simply taking a dummy pill and routinely interacting with the medical system eased the intense desire to consume drugs.
For individuals with an alcohol use disorder, the therapeutic benefit was highly robust. The combined data from the five alcohol trials demonstrated a mathematically reliable drop in subjective cravings over time. The patients believed they were getting help, and their subjective urges declined accordingly.
The results for the other substances were less definitive. While the symptom numbers did drop for cocaine and methamphetamine users, the results were not statistically significant. This means the researchers could not definitively prove the drop was caused by the dummy pill rather than normal day-to-day fluctuations in mood.
There are multiple reasons why alcohol cravings might respond differently to dummy pills than stimulant cravings. The biological mechanisms underlying methamphetamine and cocaine addiction may exert a more aggressive chemical hold on the brain, leaving less room for expectation-driven relief. Additionally, alcohol addiction often involves a different long-term recovery trajectory than continuous stimulant abuse.
The small number of available studies also presents a major mathematical hurdle. With only two studies for cocaine and two for methamphetamine, the pool of patients was quite limited. The researchers noted that these particular estimates were captured with a high degree of mathematical uncertainty.
The team faced similar challenges when looking at other common substances. They had to exclude therapies for smoking and nicotine addiction entirely. Most nicotine trials combine pharmacological treatment with some form of behavioral therapy or professional counseling.
When talk therapy is combined with a medical trial, it becomes virtually impossible to untangle the varying effects. Researchers cannot determine whether a drop in craving was caused by a placebo pill or by the emotional support given by the therapist. Sticking strictly to pill-only trials preserved the structural integrity of the data.
Another limitation was that the original trials rarely verified whether the scientific blinding actually worked. In many medical experiments, patients sometimes guess correctly that they are taking a dummy pill because they do not feel any bodily side effects. If patients guess their status correctly, their optimistic expectations drop and the placebo response vanishes.
The research team also pointed out a high degree of variation among the included trials. Differing lengths of treatment, differing patient demographics, and the use of unique craving questionnaires made it harder to compare the studies perfectly. This is a common obstacle when pooling older medical data into a single modern review.
“It is important to note that the observed improvement most likely reflects a combination of the true placebo effect including expectancy, the natural course of the condition, and other nonspecific effects,” van der Meer said. “A meta-analysis of this kind cannot determine the precise extent to which each of these factors accounts for the observed improvement.”
Despite the limitations, the study offers practical insights for both everyday medicine and future laboratory design. When setting up a new trial strictly for addiction medication, scientists must account for a high background rate of improvement. A new drug has to clear a very high hurdle to outpace the sheer power of human expectation.
In everyday medical clinics, doctors might be able to ethically leverage this psychological response. If they prescribe a genuine, evidence-based medication, they can also project a professional sense of confidence and optimism about the treatment. Fostering a hopeful outlook from the start could enhance the biological effectiveness of the real medicine.
“We do now know quite well that symptom improvement occurs with placebo treatment across a large variety of psychiatric disorders,” van der Meer said. “To truly leverage the placebo effect in clinical practice, we need to know better to what extent the symptom improvement with placebo treatment consists of the true placebo effect, the natural course, and other nonspecific effects.”
The study, “Placebo Effects in Alcohol, Cocaine, and Methamphetamine Use Disorder: A Systematic Review and Meta-Analysis,” was authored by Pim B. van der Meer, Jan W. Schoones, Jurjen Luykx, Olaf M. Dekkers, Marta Fiocco, Cornelis Kees Kramers, Arnt Schellekens, and Albert Batalla.
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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #depression #psychotherapist #PlaceboEffect #AddictionRecovery #CravingManagement #AlcoholDependence #CocaineDependence #Methamphetamine #PsychiatryResearch #PlaceboMetaAnalysis #MindBodyConnection #ClinicalTrials
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DATE: July 24, 2026 at 10:19AM
SOURCE: PSYCHIATRIC TIMESDirect article link at end of text block below.
🧠💊 This week's "Brain Trust" episode is now live!
Joseph Goldberg, and guest Walter A. Brown discuss how placebo and nocebo effects shape psychiatric care, as well as how expectations and framing boost medication benefit and reduce side effects: https://t.co/vqgXrFI66y https://t.co/T2a8leik56
Here are any URLs found in the article text:
Articles can be found by scrolling down the page at Articles can be found at https://www.psychiatrictimes.com/news".
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Private, vetted email list for mental health professionals: https://www.clinicians-exchange.org
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#psychology #counseling #socialwork #psychotherapy @psychotherapist @psychotherapists @psychology @socialpsych @socialwork @psychiatry #mentalhealth #psychiatry #healthcare #psychotherapist #BrainTrust #PlaceboEffect #Nocebo #Psychiatry #MedicationBenefits
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Scientists discovered a fascinating trick to feeling like you slept great even if you didn’t
https://web.brid.gy/r/https://www.upworthy.com/placebo-sleep-study-ex1/
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"Can a sugar pill really cure your headache?
Research shows the placebo effect can reduce pain by 50% and anxiety by 30%. This is due to the brain's release of natural painkillers and mood-boosting chemicals.
"The placebo effect is a powerful ally, if harnessed correctly." - Dr. Jerome Kassirer
What's the most creative placebo treatment you've heard of?
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Words are not “just words” they shape identities,
https://de320.isrefer.com/go/LUYDV3RB/Stuartn/
#PowerOfWords #SpeakLife #WordsMatter #BeKind #ConsciousCommunication #EmotionalHealing #ThinkandGrowEducation #RayBehan #Placeboeffect #Meditation -
RE: https://mastodon.social/@CAPETOK/116634807655241896
😂😂👏👏👇
Ingenious use of the #placeboeffect 👇🏆 -
"Is the placebo effect 25% stronger than actual medication?
Research shows the mind's powerful influence on physical symptoms can create real, tangible benefits. Studies have demonstrated the placebo effect can significantly improve pain, mood, and even reduce inflammation.
"The placebo effect is a powerful example of the mind's ability to heal itself." - Dr. Irving Kirsch.
What's more impressive, the power of meds or the human mind?
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I made my husband ill with a few words – nobody is immune to the power of the nocebo effect | Helen Pilcher https://www.theguardian.com/commentisfree/2026/may/08/nocebo-effect-science-health #Health #Science #MedicalResearch #PlaceboEffect #HealthWellbeing #LifeAndStyle #Biology #UkNews
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Praiseth the sugar!
--- --- ---
Lobpreiset den Zucker!#KätToon #homoepathy #Satire #Homöopathie #PlaceboEffect #PlaceboEffekt
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💊 #PlaceboEffect – Every #medication has this secret #ingredient!✨
What if the effect of a medication is never just “chemical”?
Every #treatment is always a combination of #active ingredient and #expectation, #relationship, and #trust.
📺 https://youtu.be/TPCADLkSBWM
📎 https://philosophies.de/index.php/2024/03/12/grenzen_physik_psychologie/
#Medicine #Psychology #Consciousness #Healing #Therapy #DoctorPatientRelationship #Science #InterdisciplinaryFields #SystemsTheory #QuantumPhysics #Entanglement #Parapsychology #Zoomposium #WalterVonLucadou
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A new study from the Università Cattolica in Milan demonstrated that taking a fake supplement (placebo) for three weeks can lead to both physical and cognitive improvements in older adults. People who knew they were taking a placebo had better results than those who did not. Here's the full story from Medicalxpress.com.
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Scientists discovered a fascinating trick to feeling like you slept great even if you didn't
https://web.brid.gy/r/https://www.upworthy.com/placebo-sleep-study
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"Can a dummy pill genuinely cure?
Studies have shown that the placebo effect can be as effective as real medication in treating depression (30% response rate) and pain (50% pain reduction).
"Believe you can and you're halfway there," - Theodore Roosevelt.
What's the most convincing fake remedy you've ever heard?
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LATER's business model:
Do nothing ✓
Charge money for it ✓
No settings because choice is anxiety ✓
Works because placebos work ✓
This is either genius or insane. For $0.99, find out which.https://apps.apple.com/gb/app/later/id6753189220
#BusinessModel #PlaceboEffect #StatusSignaling #MentalHealth
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LATER's business model:
Do nothing ✓
Charge money for it ✓
No settings because choice is anxiety ✓
Works because placebos work ✓
This is either genius or insane. For $0.99, find out which.https://apps.apple.com/gb/app/later/id6753189220
#BusinessModel #PlaceboEffect #StatusSignaling #MentalHealth
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Fun fact: Your brain can't tell the difference between real achievement and watching a progress bar complete. LATER is $0.99 exploitation of this bug in your mental software. Side effects include: feeling better.
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If we take away the statistical quirks and biases, is there any placebo effect left?
Once you eliminate well-understood elements like bias and regression to the mean, there's no remarkable placebo effect left to explain
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No, placebos probably aren’t getting stronger over time
Placebo responses have not gotten stronger over the past 30 years – trials are just better at isolating treatment effects from noise
https://www.skeptic.org.uk/2025/07/no-placebos-probably-arent-getting-stronger-over-time/
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https://de320.isrefer.com/go/LUYDV3RB/Stuartn/
Words have energy—and the impact of yours can change lives. Speak with intention. Be mindful. Be kind. #PowerOfWords #SpeakLife #MindfulCommunication #WordsMatter #KindnessCounts #EnergyInWords #ConsciousLiving #ThinkandGrowEducation #RayBehan #Placeboeffect #Meditation -
Supplements and garlic won’t cure the common cold, despite what the BBC say
The BBC reported on home remedies to fight the common cold – but what they gave us were weak, biased, and p-hacked studies
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🥴 Oh, the groundbreaking revelation that not all placebos wear the same lab coat! Our esteemed author regales us with tales of 18th-century gadgetry more effective at relieving wallets than ailments. 🚜✨ Who knew the placebo elite had such a rich history of being equally useless but differently priced?
https://www.samstack.io/p/all-placebos-are-not-created-equal #placebohistory #18thcenturygadgets #placeboeffect #medicalhumor #historicalinsights #HackerNews #ngated -
The Beecher story, the origin of the placebo effect myth, likely didn’t happen
The most-cited example of the powerful placebo is Henry Beecher using saline instead of morphine... except, it likely never happened
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Placebo surgery: why performing fake operations doesn’t actually help anyone
Placebo surgeries do not work – if a surgery performs no better than placebo, it means that operation doesn't work, not that placebos are powerful
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Non-deceptive placebo pills reduce stress, anxiety, and depression—even remotely administered https://www.psypost.org/non-deceptive-placebo-pills-reduce-stress-anxiety-and-depression-even-remotely-administered/?utm_source=dlvr.it&utm_medium=mastodon #MentalHealth #PlaceboEffect #AnxietyRelief #StressManagement #DepressionHelp
