Neurofeedback Side Effects: What Patients Should Report

Possible Neurofeedback Side Effects: What Dayton, MN Patients Should Report to Their Clinician

Introduction

After a neurofeedback session, it can be hard to know if a change you notice is expected, unrelated, or something your clinician should check. You do not have to figure this out alone.

This guide covers side effects patients sometimes report with neurofeedback, reviews what we know and do not know about safety, and explains what clinicians should consider when assessing reactions. It also highlights warning signs that need quick action and shows patients in Dayton, Minnesota, how to check a provider’s safety and monitoring steps before starting brain wave training.

What side effects are there with neurofeedback?

At Holsoms, neurofeedback, also called brain wave training, is usually described as a noninvasive procedure. Standard EEG sensors record electrical activity on the scalp, and this information is turned into visual or sound feedback.

The sensors used in standard EEG neurofeedback do not send electrical current into the brain. Still, just because the procedure is noninvasive does not mean everyone will have the same experience during or after training.

Possible changes reported by patients or practitioners include:

Headache or head pressure.
Mental or physical fatigue.
Dizziness or nausea.
Irritability or restlessness.
Increased anxiety.
Feeling abnormally alert or stimulated.
Difficulty concentrating.
Temporary mental fogginess.
Changes in sleep or dreams.
Emotional sensitivity.
Discomfort in the muscles caused by remaining in one position.
There was skin irritation at the sites where the sensors or conductive paste had been applied.

Not all of these symptoms are proven side effects of neurofeedback. Published research does not provide reliable numbers for how often many of them occur.

Any symptom that shows up after training should be recorded and checked, instead of being automatically blamed on the session or ignored.

What does the research have to say regarding the side effects of neurofeedback?

Available research usually shows that serious side effects are rare in published EEG neurofeedback trials. However, this finding is less reliable because adverse events are not always reported in the same way.

A 2014 review of qEEG-guided neurofeedback noted that its safety had not been thoroughly investigated in either young people or adults, even though clinical experience suggested it was reasonably safe. The authors’ observation remains relevant because the absence of reported harms does not equate to systematic evidence of safety. Please look at the article on PubMed.

A 2020 clinical review of neurofeedback for ADHD reported that the studies it examined had not identified significant neurofeedback-specific major adverse events. The review also emphasised substantial differences in protocols and study quality. Read the full review in Current Psychiatry Reports.

In one double-masked randomised ADHD study, researchers reported no significant adverse effects or sleep problems. That finding applies to the participants and protocol studied; it does not prove that every neurofeedback method is side-effect-free. Read the randomised study.

In practice, brain wave training is generally well tolerated in many research settings, but both patients and providers should still watch for any unwanted changes.

How Severe Are the Typical Side Effects of Neurofeedback?

You can judge possible responses by how strong they are, how long they last, and how they affect your daily life. The table below is a practical reporting guide, not a diagnostic tool.

What you notice	Appropriate response
Mild tiredness that resolves after rest	Record when it began and mention it at the next check-in
Mild headache that resolves quickly	Track duration, hydration, food intake, screen exposure, and recurrence
New sleep difficulty after a session	Notify the provider, particularly if it lasts more than one night or repeats
Increased anxiety, irritability, or agitation	Contact the provider before the next session if the change is noticeable or disruptive
Persistent dizziness, nausea, or concentration problems	Pause further training until the provider has reviewed the symptoms
Significant mood elevation, very little need for sleep, or unusually risky behaviour	Seek prompt clinical assessment because these may be signs of mania or another condition
Suicidal thoughts, seizure, fainting, sudden confusion, weakness, or severe headache	Seek urgent or emergency medical care

A responsible clinician should never tell a patient that worsening symptoms automatically mean the treatment is working.

What Symptoms Should You Report Before Your Next Session?

Contact the provider before completing another session if you experience:

A symptom that started either during the training or a short time after it.
A symptom that was already present and worsened noticeably.
Sleep problems that last longer than one night.
There is an increase in panic, anxiety, agitation, or irritability.
Unusual emotional reactions.
Ongoing headache, nausea, dizziness, or trouble thinking clearly.
Have a reduced capacity to work, drive, study, or look after yourself.
Something noticed by family members or carers.
A symptom that reappears after having undergone more than one session.
A reaction that makes you question whether you should continue.

If a symptom is getting worse or affecting your daily life, you do not need to wait for your next scheduled review.

At what time does a symptom become a medical emergency?

Certain symptoms should not be dealt with merely by making adjustments to a brain wave training programme. You should seek immediate medical assistance for:

The occurrence of a first seizure or an alteration in a previously established seizure pattern.
Experiencing a sudden loss of consciousness or a loss of awareness.
A sudden feeling of weakness, numbness, a drooping of the face, or difficulty in speaking.
A severe or quickly worsening headache.
New confusion or disorientation.
Chest pain or trouble breathing.
Thoughts of committing suicide or a direct risk of self-harm.
Hallucinations, intense paranoia, or a loss of contact with reality.
Indications of mania include excessive activation, a minimal need for sleep, and engaging in unsafe behaviour.

If there is immediate danger, call 911 or go to the nearest emergency department. In the United States, individuals who are having suicidal thoughts or going through a mental health crisis can call or text 988 to speak to the Suicide & Crisis Lifeline.

How to Describe a Possible Side Effect to Your Clinician

Saying “I felt strange after training” may be true, but giving more details helps your clinician spot patterns.

Try to record:

The symptom: Precisely, what did you notice?
When did it start—during the session, right after, or at a later time?
How long did it last? Was it minutes, hours, or days?
On a scale from 0 to 10, how intense is it?
What effect did it have on work, driving, sleep, school, or your relationships?
Have you had this symptom before?
Other factors include: How much sleep did you get? Did you eat anything? Were you ill, stressed, or dehydrated?
What substances did you take? Specifically, how much caffeine, alcohol, cannabis, nicotine, or other substances?
Did you begin, discontinue, omit, or modify any medication?
Has an identical change taken place in more than one session?

It is better to write down a short record than to rely on your memory days later.

Is it a side effect, an already existing symptom, or just a coincidence?

It doesn’t follow that all the changes that occur after a session are the result of brain wave training, since symptoms like headache, fatigue, anxiety, and bad sleep are common and there are numerous possible causes.

Sleep and fatigue

Daytime fatigue can result from going to bed late, carrying out shift work, having sleep apnea, being responsible for care of others, suffering from pain, or experiencing insomnia. Although training timing issues may still matter, you should also consider your overall sleep pattern.

Medication and substance effects

The attention, mood, sleep, and physical sensations of a person can be affected by prescription drugs, missed doses, the effects of withdrawal, caffeine, nicotine, cannabis, alcohol, and supplements.

Do not alter the medication that has been prescribed just to find out whether it caused a symptom after the session. Instead, talk over any medication concerns with the prescriber.

Anxiety about the session

Worry about the sensors, brain activity, or procedures can cause physical tension or anxiety. This does not mean the symptom is imagined; it means the care team should consider both the training protocol and how the patient experienced the session.

An underlying medical condition

Dizziness, headaches, difficulty concentrating, sleep disturbances, or mood changes may, in some cases, signal a medical or psychiatric condition that needs separate assessment.

Brain wave training should not delay proper diagnostic care.

What is the clinician supposed to do after you report a side effect?

The right course of action will vary according to the symptom and how severe it is. A provider might:

Make detailed questions regarding timing and intensity.
Look at sleep, the medications, caffeine, stress, and any illness you’ve had recently.
Make sure the sensors are properly positioned and that the signal quality is good.
Check if the recording was affected by muscle, eye, or movement artifacts.
Pause the training plan.
Shorten future sessions.
Change the feedback or the protocol.
Repeat baseline symptom measures.
Talk to or arrange for another healthcare professional.
Suggest a medical, psychiatric, or neurological exam.
Stop the training from continuing.

Any changes should be documented. Let patients know why a protocol is being changed and what will be monitored next.

Holsoms must describe the clinic’s actual procedure for recording symptoms, reviewing session data, altering or suspending protocols, contacting prescribers, and escalating any concerns for medical assessment.

Can an improperly designed neurofeedback procedure lead to issues?

Neurofeedback protocols vary by the brain activity measured, the aspect rewarded, sensor placement, and the method of delivering feedback.

Biologically, mismatched settings, too much demand during a session, or not enough monitoring could cause unwanted changes. However, research has not determined the exact rates or predictable side effects for each protocol.

Safety involves more than just the equipment; it also involves:

Appropriate patient screening.
The training that the provider has received and the range of things that they are allowed to do.
Accurate signal collection.
Individualised goal setting.
Conservative protocol decisions.
Symptom tracking.
The readiness to pause or to alter one’s course.
Working with the patient’s current care team.

Can a qEEG Brain Map Stop Side Effects?

A quantitative EEG, or qEEG, looks at the EEG activity which has been recorded. It can provide useful information when interpreted alongside symptoms, history, medications, sleep, behavioural observations, and other assessments.

There is no guarantee that someone will have a positive response or avoid side effects, and a qEEG should not be used as the only basis for a psychiatric or neurological diagnosis.

Patients should ask:

Who is it that records and interprets the qEEG?
How are movement, eye, and muscle artefacts removed?
What impact will the results have on the proposed protocol?
What symptoms will be measured together with the EEG data?
At what time will the protocol be reassessed?

Brain wave training guided by a clinician compared with unsupervised home training

Clinic and home systems both vary. The main difference is not just where training happens, but the level of screening, oversight, monitoring, and access to clinical judgment.

Safety consideration	Clinician-guided brain wave training	Unsupervised home training
Medical and psychiatric history	Can be reviewed before training	May be limited to an online questionnaire
Medication review	Can be considered during planning	Often left to the user
Signal quality	A trained person may identify artifacts or poor sensor contact	The user may have limited technical support
Protocol selection	May be individualized and clinically reviewed	Often preset or selected by the user
Side-effect monitoring	Symptoms can be documented over time	Reporting may be optional or automated
Protocol modification	Can follow a clinical reassessment	May occur through an app or standard algorithm
Care coordination	May involve the patient’s therapist, prescriber, or physician	Usually separate from the healthcare team
Escalation	A clinician can recommend medical evaluation	The user must recognize when outside help is needed

Not all clinics are right for everyone, and not all home devices are unsafe. Patients should look at the actual provider, equipment, procedures, and available support.

Can brain wave training be used in conjunction with medication or therapy?

Brain wave training can be used along with psychotherapy, medication management, sleep help, or other services. It should not automatically replace your current treatment.

Inform the brain wave training company about all medications that you are taking, as well as any over-the-counter products, supplements, caffeine, alcohol, cannabis, and nicotine. Changing your medication could affect your mood, alertness, sleep, ability to concentrate, and EEG readings.

Do not stop or change your medication without talking to your prescriber first. If symptoms change with combined treatment, your providers should communicate to help find the cause.

Which people might require extra screening before beginning?

Additional medical or psychiatric coordination may be appropriate for people with:

A seizure disorder.
A concussion or some other recent brain injury.
Bipolar disorder or past mania.
Psychosis.
Active suicidal thoughts.
New or severe headaches.
Significant neurological illness.
The mental health symptoms are getting much worse.
Recent medication changes.
An implanted electronic medical device.
Sensitivity to flashing lights.

Having these factors does not mean someone is automatically excluded. Instead, extra care should be taken when deciding if brain wave training is suitable and how much monitoring is needed.

Provider Credentials and Equipment Claims

Patients should check both the professional qualifications of the person providing the service and the regulatory status of the equipment.

The Biofeedback Certification International Alliance provides voluntary professional certification in the field of neurofeedback. Certification is awarded to individual practitioners, not to equipment. Details on its education requirements, mentoring, examinations, and continuing education standards are available through the BCIA neurofeedback certification programme.

Federal regulations cover biofeedback devices as medical devices. It is not correct, however, to regard device classification or clearance as equivalent to the FDA approving the treatment of every condition referred to in the marketing materials. Patients can look up the federal definition of a biofeedback device in the Electronic Code of Federal Regulations.

Questions to Ask a Brain Wave Training Provider

Before beginning, ask:

What qualifications and kind of training does the individual who is in charge of my sessions have?
What medical and mental health information do you look at?
What device and protocol will be used?
Does the equipment serve to record activity or does it also provide stimulation?
What side effects or undesirable changes do you keep an eye on?
What is the correct way to report symptoms between sessions?
Who reviews those reports?
What might lead you to halt or make changes to a protocol?
What is your plan for coordinating with my therapist or the person who prescribes medication?
What if training makes me feel worse?
How often will my progress and tolerability be reviewed?
May I stop without having to buy more sessions?

A qualified provider should answer these questions without dismissing your concerns or promising a specific result.

How Holsoms Monitors Brain Wave Training in Dayton, MN

Holsoms describes neurofeedback as a type of brain wave training and one part of a broader mental wellness plan. It should not be seen as a cure or a replacement for needed medical or psychiatric care.

In our clinic, we ask patients to report any changes in sleep, mood, energy, anxiety, focus, or physical comfort. We also look at when the symptom started, how long it lasted, and if other factors may have played a role.

Holsoms provides medical services to Dayton, Maple Grove, Rogers, Champlin, Osseo, Elk River, and other nearby communities from its clinic at 13691 Balsam Lane North, Suite C, Dayton, MN 55327.

Frequently Asked Questions

Are the side effects of neurofeedback generally temporary?

Some patients report temporary fatigue, headaches, irritability, anxiety, or changes in sleep, but we do not know how common these symptoms are. Many symptoms may have other causes. If you notice new, recurring, worsening, or disruptive changes, tell your provider so they can check when they happen and decide if you should stop training.

Can neurofeedback have the effect of making anxiety worse?

Some people say they feel more anxious, restless, or alert after a session. Research does not show how often this happens or if neurofeedback is always the cause. Contact your provider if your anxiety is new, much worse, affects your sleep, or makes daily life harder.

If I get a headache, should I stop doing brain wave training?

Record and report any mild, short-term headache, especially if it happens after several sessions. If the headache is severe, unusual, or gets worse quickly, see a medical professional right away. Wait for your provider to review any ongoing or serious reaction before doing another session.

Can children have side effects from neurofeedback?

Children may have trouble describing fatigue, restlessness, headaches, or changes in sleep and focus. Parents should watch for changes in their child’s behavior and performance between visits. Pediatric training should include age-appropriate screening, professional supervision, communication with caregivers, and coordination with the child’s healthcare providers.

What is the best place to talk about neurofeedback side effects in Dayton, MN?

Holsoms offers consultations for people thinking about brain wave training in Dayton and nearby areas. In the consultation, you can talk about your symptoms, medications, medical history, treatment goals, and any safety concerns. The consultation does not guarantee that brain wave training will be recommended.