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DTSTART:19700308T020000
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DTSTART:19701101T020000
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BEGIN:VEVENT
DTSTAMP:20251016T135205Z
LOCATION:Grand Hall L
DTSTART;TZID=America/Chicago:20251016T165000
DTEND;TZID=America/Chicago:20251016T171000
UID:HFESAM_ASPIRE 2025_sess258_LECT458@linklings.com
SUMMARY:Inflection Matters: How Vocal Inflection in Decision Aids Affects 
 Perceptions of Health Suggestions
DESCRIPTION:Eve Vazquez and Anne McLaughlin (North Carolina State Universi
 ty)\n\nThis study investigates how vocal inflection in decision aids with 
 humanlike voice affects trust in automation-assisted health scenarios. Usi
 ng a 2 (inflection: upward/downward) x 2 (stated automation reliability: 9
 5%/45%) factorial design, participants will interact with decision aids th
 at offer audio-recorded health advice related to diabetes management. The 
 advice presented by voice assistants will be legitimate in all trials, thu
 s actual reliability will be 100%. Participants will rate their trust and 
 likelihood to follow the advice, along with perceptions of vocal confidenc
 e and tone for each inflection type. It is hypothesized that downward infl
 ection will be perceived as declarative and will lead to higher trust and 
 greater willingness to follow advice than upward inflection, which may sug
 gest uncertainty. Individual differences in locus of control related to on
 e’s health and propensity to trust automation will also be assessed and ar
 e expected to moderate rated trust and expected reliance on the aids. This
  study will provide insight into the influence of inflection on subjective
  trust and perceptions of suggestions delivered by automation aids. Unlike
  traditional visual anthropomorphism, inflection may have utility in foste
 ring positive human-automation interactions due to its potential to delive
 r information in a naturalistic manner, convincingly mimicking human attri
 butes.\n\nTrack: Aerospace Systems, Student Forum\n\nSession Chairs: Vibha
  Bhatia (Punjab Engineering College (Deemed to be University), Chandigarh,
  India) and Judi See (Sandia National Laboratories)\n\n
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