Assessment & Research

Daydreaming about death: violent daydreaming as a form of emotion dysregulation in suicidality.

Selby et al. (2007) · Behavior modification 2007
★ The Verdict

Violent daydreaming plus depression flags stronger suicide thoughts than either sign alone.

✓ Read this if BCBAs who conduct risk screens in schools, clinics, or college settings.
✗ Skip if Clinicians serving only clients with severe intellectual disability where self-report is limited.

01Research in Context

01

What this study did

Fullana et al. (2007) asked college students to fill out three short surveys. One asked how often they daydream about death or violence. The other two measured depression and suicide thoughts.

The team then looked at who scored high on all three. They wanted to see if violent daydreaming plus depression predicts more suicide ideation than depression alone.

02

What they found

Students who both daydreamed vividly about death and had high depression reported the strongest suicide thoughts. Either risk alone was lower.

In plain words, violent daydreaming acted like a booster. It turned depression into a stronger warning sign.

03

How this fits with other research

Huang et al. (2014) extends the same idea to younger kids. They showed family quarrels also raise suicide thoughts in elementary students, especially when the child is already depressed. Risk factors change with age, but depression keeps amplifying them.

Davies et al. (2014) sound like they disagree. Their review says self-injury and aggression do NOT reliably signal depression in people with intellectual disability. The key difference is method: Ellen looked at outward behaviors in ID, while A et al. looked at private thoughts in college students. Both can be true; the marker depends on the population.

Okuno et al. (2022) used a similar survey style with adolescents. They found safety behaviors plus social anxiety predict social problems. Pattern match: one internal habit teams up with one clinical trait to create bigger trouble.

04

Why it matters

If you screen teens or adults for suicide risk, add one quick question: "Do you find yourself daydreaming about death or violence?" When the answer is yes AND the person shows signs of depression, move to safety planning and refer for mental-health support. No extra tools needed—just one item on your intake form can sharpen your risk radar.

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Add one line to your intake: 'In the past month, have you had repeated daydreams about death or violence?' Mark 'yes' + high depression for immediate follow-up.

02At a glance

Intervention
not applicable
Design
other
Sample size
83
Population
not specified
Finding
positive

03Original abstract

Anecdotal and empirical evidence suggests that suicidal individuals may daydream about suicide as a method of mood regulation (including increasing positive affect). These daydreams may center on future suicidal plans, previous suicide attempts, or on the ways that others will react to their death. Yet, even though violent daydreams may increase positive affect in the short term, in the long run they may actually increase both suicidality and the ability to engage in suicidal behavior. In this study, a sample of 83 college students was given the Beck Depression Inventory, Anger Rumination Scale, and the Beck Scale for Suicide Ideation. The authors hypothesized that a two-way interaction would exist between high levels of depression and high levels of violent daydreaming to predict increased levels of suicidality. Using linear regression, the results of this study supported the hypothesis. The clinical and theoretical implications of these findings are discussed.

Behavior modification, 2007 · doi:10.1177/0145445507300874