227,033 research outputs found
Unfamiliar voice identification: Effect of post-event information on accuracy and voice ratings
No full textThis study addressed the effect of misleading post-event information (PEI) on voice ratings, identification accuracy, and confidence, as well as the link between verbal recall and accuracy. Participants listened to a dialogue between male and female targets, then read misleading information about voice pitch. Participants engaged in verbal recall, rated voices on a feature checklist, and made a lineup decision. Accuracy rates were low, especially on target-absent lineups. Confidence and accuracy were unrelated, but the number of facts recalled about the voice predicted later lineup accuracy. There was a main effect of misinformation on ratings of target voice pitch, but there was no effect on identification accuracy or confidence ratings. As voice lineup evidence from earwitnesses is used in courts, the findings have potential applied relevance.</p
Perceptual auditory aftereffects on voice identity using brief vowel stimuli
No full textHumans can identify individuals from their voice, suggesting the existence of a perceptual representation of voice identity. We used perceptual aftereffects--shifts in perceived stimulus quality after brief exposure to a repeated adaptor stimulus--to further investigate the representation of voice identity in two experiments. Healthy adult listeners were familiarized with several voices until they reached a recognition criterion. They were then tested on identification tasks that used vowel stimuli generated by morphing between the different identities, presented either in isolation (baseline) or following short exposure to different types of voice adaptors (adaptation). Experiment 1 showed that adaptation to a given voice induced categorization shifts away from that adaptor's identity even when the adaptors consisted of vowels different from the probe stimuli. Moreover, original voices and caricatures resulted in comparable aftereffects, ruling out an explanation of identity aftereffects in terms of adaptation to low-level features. In Experiment 2, we show that adaptors with a disrupted configuration, i.e., altered fundamental frequency or formant frequencies, failed to produce perceptual aftereffects showing the importance of the preserved configuration of these acoustical cues in the representation of voices. These two experiments indicate a high-level, dynamic representation of voice identity based on the combination of several lower-level acoustical features into a specific voice configuration
Interview of Michigan author Liesel Litzenburger on growing up in Northern Michigan, the characters in her writing and how she has woven in her childhood experiences
No full textMichigan author Liesel Litzenburger talks about growing up in Northern Michigan, the characters in her writing and how she has woven in her childhood experiences. She explains how she gives her young characters voice and how she tries to tell the story from their point of view. Litzenburger also talks about her current projects. Litzenburger is interviewed by Stephanie Mathson of the Michigan State University Libraries. Part of the MSU Libraries' Michigan Writers Series. Held at the MSU Main Library
Stephanie Mathson interviews poet and author Judith Kerman
No full textPoet and author Judith Kerman talks about her experience as a Fulbright scholar in the Dominican Republic, her work translating poems by Cuban poet Dulce Mar\ueda Loynaz, learning Spanish, translating poems from Spanish, and her book "Retrofitting Blade Runner". Kerman is interviewed by Stephanie Mathson of the Michigan State University Libraries. Part of the MSU Libraries' Michigan Writers Series
Stephanie Mathson interviews poet and author Josie Kearns
No full textPoet and author Josie Kearns, professor of creative writing and literature at the University of Michigan, talks about teaching and writing, natural scenery in Michigan, her editorship of the book "New Poems From the Third Coast", her book "New Numbers", and other works in process. Kearns is interviewed by Stephanie Mathson from the Michigan State University Libraries for the MSU Libraries' Michigan Writers Series
Effect of Pregnancy on the Speaking Voice
No full textThe study aims to investigate the vocal symptoms and acoustic changes in pregnant women pre- and postpartum in comparison to the controls. A total of 25 pregnant women who presented for delivery were enrolled in this study. Twenty-one nonpregnant women were matched as controls. Vocal symptoms such as hoarseness, vocal fatigue, and aphonia were assessed. Acoustic analysis included fundamental frequency (F0), habitual pitch, relative average perturbation (RAP), shimmer, noise-to-harmony ratio (NHR), and maximum phonation time (MPT). There were no significant differences in the incidence of vocal symptoms in pregnant women versus controls. However, vocal fatigue was more prevalent in the pregnant group. With respect to the acoustic parameters, there was a significant decrease in the MPT at term. The rest of the variables were comparable. Postpartum, the MPT significantly increased and there was an increase in F0 and a significant decrease in the voice turbulence index (VTI). Pregnant women have more vocal fatigue and a reduction in MPT compared to the controls. Immediately after delivery, there is a significant increase in MPT. © 2009 The Voice Foundation.Abitbol J, 1999, J VOICE, V13, P424, DOI 10.1016-S0892-1997(99)80048-4; ABITBOL J, 2006, ODESSY VOICE; BRODNITZ FS, 1979, ARCH OTOLARYNGOL, V105, P300; Cunningham G, 2005, WILLIAMS OBSTET; VERDOLINIMARSTON K, 1990, J VOICE, V4, P142, DOI 10.1016-S0892-1997(05)80139-0; DURR JA, 1987, AM J KIDNEY DIS, V9, P276; Ellegard E, 2000, GYNECOL OBSTET INVES, V49, P98, DOI 10.1159-000010223; Finkelhor B. K., 1988, J VOICE, V1, P320, DOI DOI 10.1016-S0892-1997(88)80005-5; Gabbe S, 2007, OBSTET NORMAL PROBLE; GILROY RJ, 1988, AM REV RESPIR DIS, V137, P668; HAMDAN AL, J VOICE IN PRESS; HIGGINS M B, 1989, Journal of Voice, V3, P233, DOI 10.1016-S0892-1997(89)80005-0; Newman SR, 2000, J VOICE, V14, P72, DOI 10.1016-S0892-1997(00)80096-X; Shah RK, 2005, INT J PEDIATR OTORHI, V69, P903, DOI 10.1016-j.ijport.2005.01.029; Sivasankar M, 2002, J VOICE, V16, P172, DOI 10.1016-S0892-1997(02)00087-5; THEUNISSEN IM, 1994, CLIN OBSTET GYNECOL, V37, P3, DOI 10.1097-00003081-199403000-00005; Thomson K, 1938, SURG GYNECOL OBSTET, V66, P591; WEINBERGER SE, 1980, AM REV RESPIR DIS, V121, pL55966
Stephanie Mathson interviews poet and author Jack Ridl
No full textPoet and author Jack Ridl explains how he began writing, the writer series at Hope College, his coach poems, his chapbook "Against elegies," how working and living in Michigan shapes his work, and works in progress. Ridl is interviewed by Stephanie Mathson of the Michigan State University Libraries. Part of the MSU Libraries' Michigan Writers Series
Poet and author Josie Kearns reads her selected works at the Michigan Writers Series
No full textPoet and author Josie Kearns, professor of creative writing and literature at the University of Michigan, reads selected poems and answers questions from the audience. The event is convened by Stephanie Mathson from the Michigan State University Libraries. Part of the MSU Libraries' Michigan Writers Series. Held at the Main Library
How Does Voice Matter? Evidence from the Ultimatum Game
No full textPrior research in economics and psychology has shown that process can matter in determining outcomes in many social situations. In particular, the opportunity to express ones opinion-voice-has been found to be highly influential. However, little is known about the channels through which voice may operate. In this paper, we develop a simple economic model of voice to explore these channels. We show that individuals value voice for: 1) its effect on outcomes, 2) its inherent value, or 3) its role in signaling one's social standing. Through the introduction of a hypothetical round in the standard ultimatum game, we were able to test the channels of voice directly by observing recipients' responses to offers which are lower than what they asked for. Our experimental results suggest that voice works primarily through its inherent value which appears to exceed its contribution to the perception of procedural fairness. Further, unlike voice which softens the impact of an unfair outcome, the possibility for voice may have dichotomous effects.voice, ultimatum game
Poet and author Judith Kerman reads her selected works at the Michigan Writers Series
No full textPoet and author Judith Kerman reads selected poems, including the English translation of poems by Cuban poet Dulce Mar\ueda Loynaz, and answers questions from audience. Kerman is introduced by Michigan State University Librarian Jeanne Drewes. Part of the MSU Libraries' Michigan Writers Series. Held in the Main Library
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