Short answer

Designers should acknowledge that 'hearing voices' exists on a continuum, with varying levels of impact and associated distress, and tailor solutions accordingly.

Field
Human Factors
Source
Clinical Psychology Review (2016)
Method
Systematic Review
Evidence
Moderate effect

While the subjective experience of auditory hallucinations shares similarities in perceptual qualities like loudness and location between clinical and non-clinical groups, significant differences emerge in frequency, content negativity, age of onset, beliefs about voices, perceived control, and associated distress. This human factors research insight is drawn from a 2016 study published in Clinical Psychology Review. Using Systematic review, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Designers should acknowledge that 'hearing voices' exists on a continuum, with varying levels of impact and associated distress, and tailor solutions accordingly.

Study
Human FactorsHigh ImpactModerate effect

Auditory Perception Differences: Clinical vs. Non-Clinical Hallucinations

While the subjective experience of auditory hallucinations shares similarities in perceptual qualities like loudness and location between clinical and non-clinical groups, significant differences emerge in frequency, content negativity, age of onset, beliefs about voices, perceived control, and associated distress.

Clinical Psychology Review · 2016

01

Key Findings

  • 01Subjective perceptual experience (loudness, location) of voices is similar in clinical and non-clinical groups.
  • 02Clinical voice-hearers experience more frequent voices, more negative content, and have an older age of onset.
  • 03Groups differ significantly in beliefs about voices, control over voices, voice-related distress, and affective difficulties.
  • 04Cognitive biases, reduced global functioning, and psychiatric symptoms are more prevalent in healthy voice-hearers than controls, but less than in clinical samples.
  • 05Risk factors like familial and childhood trauma appear similar between clinical and non-clinical voice-hearers.
02

Application

Design takeaway

Designers should acknowledge that 'hearing voices' exists on a continuum, with varying levels of impact and associated distress, and tailor solutions accordingly.

How to apply

When designing any product or service related to mental well-being, consider how different user groups might perceive and interact with it based on their unique experiences with phenomena like auditory hallucinations.

Project actions

  • 01When researching user needs, consider the spectrum of experiences within a user group.
  • 02Explore how subjective beliefs and emotional responses influence user interaction with a product.
03

Method & Evidence

AimTo systematically review and compare the characteristics of auditory verbal hallucinations in individuals experiencing them without distress or need for care versus those with clinical diagnoses.
MethodSystematic Review
ProcedureA comprehensive literature search was conducted to identify relevant studies. Titles and abstracts were screened, followed by full-text analysis of selected articles to determine eligibility for inclusion based on predefined criteria.
ContextPsychological research, clinical psychology, mental health studies

Variables

IVClinical diagnosis status (clinical vs. non-clinical voice-hearer)
DVFrequency of voices, negativity of voice content, age of onset, beliefs about voices, perceived control over voices, voice-related distress, affective difficulties, cognitive biases, global functioning, psychiatric symptoms.
CVSubjective perceptual experience of voices (loudness, location).
04

Strengths & Limitations

Strengths

  • +Comprehensive systematic review methodology.
  • +Inclusion of a wide range of studies on healthy voice-hearers.

Limitations

The study's findings on neuroimaging were inconclusive, suggesting that purely biological markers might not fully explain the differences.

Reliability & validity

The systematic review's reliability is enhanced by its rigorous methodology. Validity is supported by the convergence of findings across multiple studies, though the subjective nature of some measures presents inherent challenges.

Think critically

How might the design of a communication tool be altered if it were intended for someone who hears voices but is not distressed, versus someone who is experiencing significant distress?

05

Design Principles

"Design for spectrums of experience, not just binary states."

Understanding these nuanced differences is crucial for designing interventions and support systems that are sensitive to the varying needs and experiences of individuals. It informs the development of more targeted and effective communication tools, assistive technologies, and therapeutic approaches.

06

What This Means for Your Design

People who hear voices but aren't distressed are similar to those who are distressed in how the voices sound, but they differ in how often they hear them, what the voices say, and how they feel about them.

How to use in your project

  • 1.Use this research to justify the need for diverse user testing and to inform the development of user personas that capture a range of experiences.
07

Add to My Project

08

Quick Cite

Paragraph starter

This systematic review highlights that while the perceptual qualities of auditory hallucinations are similar across clinical and non-clinical groups, significant differences exist in frequency, content, and subjective experience. This underscores the importance of designing for a spectrum of user needs, recognizing that distress and belief systems profoundly shape user interaction and the impact of a design.

09

Source

Clinical Psychology Review

Auditory verbal hallucinations and continuum models of psychosis: A systematic review of the healthy voice-hearer literature

journal · 2016

View source

Questions About This Research

What does the research say about auditory perception differences: clinical vs. non-clinical hallucinations?
Designers should acknowledge that 'hearing voices' exists on a continuum, with varying levels of impact and associated distress, and tailor solutions accordingly. Evidence: Clinical Psychology Review (2016).
Why does "Auditory Perception Differences: Clinical vs. Non-Clinical Hallucinations" matter for design?
Understanding these nuanced differences is crucial for designing interventions and support systems that are sensitive to the varying needs and experiences of individuals. It informs the development of more targeted and effective communication tools, assistive technologies, and therapeutic approaches.
How can designers apply this research?
Designers should acknowledge that 'hearing voices' exists on a continuum, with varying levels of impact and associated distress, and tailor solutions accordingly.
What were the main findings?
Subjective perceptual experience (loudness, location) of voices is similar in clinical and non-clinical groups.. Clinical voice-hearers experience more frequent voices, more negative content, and have an older age of onset.. Groups differ significantly in beliefs about voices, control over voices, voice-related distress, and affective difficulties.. Cognitive biases, reduced global functioning, and psychiatric symptoms are more prevalent in healthy voice-hearers than controls, but less than in clinical samples.
What research method was used?
Systematic Review.
How strong is the evidence?
Evidence strength is rated Moderate effect, based on a 2016 journal from Clinical Psychology Review.
What should I do differently in my next project?
When designing any product or service related to mental well-being, consider how different user groups might perceive and interact with it based on their unique experiences with phenomena like auditory hallucinations.
What are the limitations?
The review supports a continuum model but cannot definitively distinguish between 'quasi' and 'fully' dimensional models of psychosis. Neuroimaging measures were inconclusive in some areas.