Table of ContentsView AllTable of ContentsSymptomsCausesTreatmentComplicationsTestsWhen to See a Provider

Table of ContentsView All

View All

Table of Contents

Symptoms

Causes

Treatment

Complications

Tests

When to See a Provider

Because flat affect is a symptom of something else going on, people will rarely seek help for just this single symptom. When they are seen for a condition, the healthcare provider can observe that the person has a flat affect.

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Person looking out of window with blank expression

Symptoms of Flat Affect

Flat affect is, in essence, a “flattening” or dampening of emotions and expression of emotions. This can impact daily interactions, social functioning, and interpersonal relationships.

Examples of flat affect symptoms include:

Flat Affect vs. Blunted AffectFlat affect and blunted affect describe similar symptoms with different severity. Someone with flat effect has no emotional response, while someone with blunted affect has a reduced emotional response.

Flat Affect vs. Blunted Affect

Flat affect and blunted affect describe similar symptoms with different severity. Someone with flat effect has no emotional response, while someone with blunted affect has a reduced emotional response.

Causes of Flat Affect

Flat affect in and of itself is not a disorder; it is a symptom of a larger diagnosis. In order to resolve the flat affect, it’s important to know the underlying cause.

You may display a flat affect with the following conditions:

Sometimes certain medications can cause a flat affect or a significantly blunted affect.

How common is flat affect in schizophrenia?Flat and blunted affect are considered hallmark symptoms of schizophrenia. It is estimated that around one third of people with schizophrenia have some degree of blunted affect.

How common is flat affect in schizophrenia?

Flat and blunted affect are considered hallmark symptoms of schizophrenia. It is estimated that around one third of people with schizophrenia have some degree of blunted affect.

What Medications Can Cause Flat Affect?

Antidepressants can cause flat affect or emotional blunting in some people. One study found that the risk of this effect is increased in people who are prescribed multiple antidepressants, as well as those who take both antidepressants and antipsychotics.

Another study found an association between antidepressants known asselective serotonin reuptake inhibitors(SSRIs) and feelings of apathy and emotional blunting.Medications in this study included:

Effexor (venlafaxine) was also studied. This, however, is a serotonin-norepinephrine reuptake inhibitor (SNRI), and participants in the study taking SNRIs did not report apathy or emotional blunting.

It’s important to remember that not everyone on antidepressants will experience emotional blunting or flat affect; there may be other underlying neurological or hormonal issues at play in those who experience it.

Antipsychoticmedications can also cause flat affect, although studies have been mixed.

How to Treat Flat Affect

Treatment for flat affect will typically depend on the underlying cause. Therapy, medication, or changing medications can be part of that treatment.

Part of the therapy may be to help someone recognize what they are feeling, teaching them about appropriate emotional reactions, and looking at others for emotional and behavioral cues.

What does constricted affect look like?The term “constricted affect” is used to describe an emotional response that is limited but not as severely as flat or blunted affect.

What does constricted affect look like?

The term “constricted affect” is used to describe an emotional response that is limited but not as severely as flat or blunted affect.

Complications and Risk Factors Associated With Flat Affect

Flat affect can impact interpersonal relationships, social situations, work situations, and even everyday functioning.

If you are unable to display emotions or emotional responses, other people may make assumptions that you aren’t interested in them, aren’t invested in the work or the relationship, or don’t like them. Though none of that may be true, people may misinterpret flat affect and react in a negative way.

Depending on the job, flat affect can impact relationships with bosses, clients, or the public, and can limit the types of jobs a person can have. If this happens, the emotional impact of social isolation, job loss, or loneliness can cause significant emotional distress.

Are There Tests to Diagnose Flat Affect?

Flat affect is observable when interacting with a person with this symptom. For example, a healthcare provider will be able to notice it during an appointment.

There is no specific test to evaluate flat affect. Apsychologistorpsychiatristwill note a person’s affect as part of a clinical encounter or interview. A healthcare provider like a neurologist or physician will note a person’s affect as part of a general overview or evaluation during an encounter.

A person’s affect can give a healthcare provider clues or insight into possible diagnoses to explore.

If someone has been diagnosed with schizophrenia, various tests can measure blunted affect, including:

Do I have blunted affect?You may have blunted affect if you feel a limited emotional response in situations that should cause a stronger reaction. For example, you may not feel excited or happy when receiving good news or laugh at things you would ordinarily find funny.

Do I have blunted affect?

You may have blunted affect if you feel a limited emotional response in situations that should cause a stronger reaction. For example, you may not feel excited or happy when receiving good news or laugh at things you would ordinarily find funny.

When to See a Healthcare Provider

Flat affect is generally a symptom of a larger condition. If you find yourself not being able to recognize emotions, or if others are letting you know that something’s not quite right with how you appear, see a healthcare provider.

Summary

Flat affect is a symptom in which a person experiences emotional flattening or blunting. The person does not express emotion as other people do. It is not a condition but a symptom of another condition, such asschizophrenia,Parkinson’s disease, ordepression.

A mental health provider or other healthcare provider can often discern flat affect during a clinical encounter. Various tests will be done depending on what they suspect as the underlying cause. Treating the underlying cause can help. Therapy may help the person recognize emotions and develop emotional responses.

6 Sources

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

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Grigoriou M, Upthegrove R.Blunted affect and suicide in schizophrenia: A systematic review.Psychiatry Res. 2020;293:113355. doi:10.1016/j.psychres.2020.113355

Aydemir EO, Aslan E, Yazici MK.SSRI induced apathy syndrome.Psychiatry and Behavioral Sciences. 2018;8(2):63-70. doi:10.5455/PBS.20180115111230

Fervaha G, Takeuchi H, Lee J, et al.Antipsychotics and amotivation.Neuropsychopharmacology. 2015;40:1539-1548. doi:10.1038/npp.2015.3

Kilian S, Asmal L, Goosen A, et al.Instruments measuring blunted affect in schizophrenia: a systematic review.PLoS One. 2015;10(6):e0127740. doi:10.1371/journal.pone.0127740

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