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Статті 24 жовтня 2025 р.

Розуміння науки, що стоїть за VIPRE

VIPRE and CVSA comparison

24 жовтня 2025

For decades, investigators have examined whether features of speech can reveal stress or support investigative interviewing. Early commercial systems drew on vocal micro-tremor theory. Research questioning that theory should be evaluated by the particular signal, system, task, and study conditions examined.

VIPRE describes its approach as vagal stress analysis, informed by research on autonomic activity and vocal production. That physiological rationale is distinct from evidence that an exact commercial system reliably identifies stress or deception. The cited background research does not establish superior AISIS or VASIS accuracy.

Від теорії мікротремору до сучасної науки

The micro-tremor theory proposed that low-frequency physiological tremors could be detected through speech. Studies cited in this article have raised questions about:

  • The identification of consistent micro-tremor patterns in normal speech
  • The relationship between proposed tremors and deception
  • The adequacy of the scientific support for particular commercial interpretations

Через такі слабкі сторони системи на основі мікротремору, як-от CVSA, були піддані значній критиці.

Роль блукаючого нерва у стресі та голосі

Research examines how autonomic activity, breathing, and vocal control interact under stress. Relevant aspects of vocal production include:

  • Змикання голосових складок
  • Резонанс
  • Стабільність фонації

Physiological changes can influence acoustic features of speech. The studies cited here provide background on those relationships; they do not by themselves validate VIPRE performance or establish greater accuracy or reliability than another system.

VIPRE і модель Вагусного аналізу стресу

VIPRE presents AISIS and VASIS as investigative support tools for trained examiners. A stress-related indication is not proof of deception, honesty, guilt, or intent. Examiners must consider question wording, recording conditions, the interview context, and independent evidence.

VIPRE на базі VASIS

Система VASIS (Virtual Autonomic Scoring Index System), впроваджена у 2006 році, забезпечує:

  • Результати з визначенням за кольорами та шаблонами
  • Автоматизовану оцінку діаграм
  • Чіткі шаблони «Стрес не виявлено» (чорний) та «Стрес виявлено» (червоний)
  • Підтримку на етапах підготовки, тестування, та після тесту

These functions organize the examination for examiner review. A color-coded chart or automated score is a product output, not independent confirmation of an interviewee’s stress level or credibility.

Compare proposed models and evidence

ОзнакаCVSAAISIS and VASIS
Proposed mechanismMicro-tremor interpretations have been questioned in the cited literature.VIPRE describes a vagal-autonomic model; the mechanism requires evaluation separately from product performance.
Research scopeFindings must identify the exact CVSA version, task, population, and study conditions.General physiology and speech research do not by themselves validate AISIS or VASIS.
InterpretationA voice-derived indication does not establish deception.A stress-related indication does not establish deception, honesty, guilt, or intent.
Product evaluationAsk for independent testing of the exact system and intended task.Ask for independent testing of the exact system and intended task.
SafeguardsUse trained examiners, documented procedures, and independent corroboration.Use trained examiners, documented procedures, and independent corroboration.

VIPRE presents its systems for structured investigative workflows. Any proposed use requires evaluation of the exact system, intended task, applicable law, and agency policy. Potential settings include:

  • Розслідувань
  • Програм скринінгу
  • Інтерв’ю для збору розвідувальної інформації
  • Оцінки перед працевлаштуванням

Головний акцент залишається на об’єктивному аналізі стресу, а не на припущеннях щодо винуватості чи наміру.

Висновок

Speech and autonomic physiology research provide a basis for studying stress-related vocal changes. They do not establish that a particular device detects deception or validates its operational performance. AISIS and VASIS should be evaluated using evidence specific to each product, population, and task, with outcomes checked against independent evidence.

Джерела

  1. Haddad, D. B., Walter, S. E., Ratley, R. J., & Smith, M. F. (2002). Investigation and evaluation of voice stress analysis technology. National Institute of Justice, U.S. Department of Justice.
  2. Hecker, M. H. L. (1988). Applications of voice stress analysis. Behavior Research Methods, Instruments, & Computers, 20(2), 151-162.
  3. Hollien, H., Hicks, J. W., & Martin, C. A. (1974). Voice stress evaluation: A new tool for the law enforcement community. Journal of Police Science and Administration, 2(4), 448-452.
  4. Ludlow, C. L. (2013). Central nervous system control of voice and swallowing. Journal of Clinical Investigation, 123(7), 2731-2737.
  5. O'Hair, H. D., Cody, M. J., & Behnke, R. R. (1985). Communication-based lie detection: An empirically based model. Human Communication Research, 12(2), 189-201.
  6. Porges, S. W. (2007). The polyvagal perspective. Biological Psychology, 74(2), 116-143.
  7. Roy, N., & Bless, D. M. (2000). Personality traits and psychological factors in voice pathology: A foundation for future research. Journal of Speech, Language, and Hearing Research, 43(3), 737-748.
  8. Shipp, T., & Izdebski, K. (1981). Current evidence for the existence of laryngeal microtremor. Journal of Forensic Sciences, 26(3), 501-505.
  9. Van Puyvelde, M., Neyt, X., McGlone, F., and Pattyn, N. (2018). Voice Stress Analysis: A New Framework for Voice and Effort in Human Performance. Frontiers in Psychology, 9, 1994.