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Investigating the mechanisms underly...

Tift, Amy H.

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Investigating the mechanisms underlying infant selective attention to multisensory speech.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Investigating the mechanisms underlying infant selective attention to multisensory speech./
Author:	Tift, Amy H.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2015,
Description:	104 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-01(E), Section: B.
Contained By:	Dissertation Abstracts International78-01B(E).
Subject:	Developmental psychology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10154978
ISBN:	9781369100631

Investigating the mechanisms underlying infant selective attention to multisensory speech.
Tift, Amy H.

Investigating the mechanisms underlying infant selective attention to multisensory speech. - Ann Arbor : ProQuest Dissertations & Theses, 2015 - 104 p.

Source: Dissertation Abstracts International, Volume: 78-01(E), Section: B.

Thesis (Ph.D.)--Florida Atlantic University, 2015.

From syllables to fluent speech, it is important for infants to quickly learn and decipher linguistic information. To do this, infants must not only use their auditory perception but also their visual perception to understand speech and language as a multisensory coherent event. Previous research by Lewkowicz and Hansen-Tift (2012) demonstrated that infants shift their allocation of visual attention from the eyes to the mouth of the speaker's face throughout development as they become interested in speech production. This project examined how infants, from 4-14-months of age, allocate their visual attention to increasingly complex speech tasks. In Experiment 1, infants were presented with upright and inverted faces vocalizing syllables and the results demonstrated that in response to the upright faces, 4-month-old infants attended to the eyes and 8- and 10-month-olds attended equally to the eyes and mouth. In response to the inverted face presentation, both the 4- and 10-month-olds attended equally to the eyes and mouth but the 8-month old attended to the eyes. In Experiment 2, infants were presented with a phoneme matching task (Patterson & Werker, 1999, 2002, 2003) and the results demonstrated that the 4-month-old infants successfully matched the voice to the corresponding face, but that older infants did not. Measures of their selective attention to this task showed that the 4-month-old infants attended more to the eyes of the faces during the task, not attending to the redundant speech information at the mouth, but older infants attended equally to the eyes and mouth, although they did not match the voice to the face. Experiment 3 presented infants with a fluent speech matching task (Lewkowicz et al., 2015) which demonstrated that although the infants (12-14-months) did not systematically match the voice to the corresponding face, the infants attended more to the mouth region, which would have provided them with the necessary redundant information. Overall, these studies demonstrate that there are developmental changes in how infants distribute their visual attention to faces as they learn about speech and that the complexity of the speech is a critical factor in how they allocate their visual attention.

ISBN: 9781369100631Subjects--Topical Terms:

516948
Developmental psychology.

Investigating the mechanisms underlying infant selective attention to multisensory speech.
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245 1 0 $a Investigating the mechanisms underlying infant selective attention to multisensory speech.
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300 $a 104 p.
500 $a Source: Dissertation Abstracts International, Volume: 78-01(E), Section: B.
500 $a Adviser: David Bjorklund.
502 $a Thesis (Ph.D.)--Florida Atlantic University, 2015.
520 $a From syllables to fluent speech, it is important for infants to quickly learn and decipher linguistic information. To do this, infants must not only use their auditory perception but also their visual perception to understand speech and language as a multisensory coherent event. Previous research by Lewkowicz and Hansen-Tift (2012) demonstrated that infants shift their allocation of visual attention from the eyes to the mouth of the speaker's face throughout development as they become interested in speech production. This project examined how infants, from 4-14-months of age, allocate their visual attention to increasingly complex speech tasks. In Experiment 1, infants were presented with upright and inverted faces vocalizing syllables and the results demonstrated that in response to the upright faces, 4-month-old infants attended to the eyes and 8- and 10-month-olds attended equally to the eyes and mouth. In response to the inverted face presentation, both the 4- and 10-month-olds attended equally to the eyes and mouth but the 8-month old attended to the eyes. In Experiment 2, infants were presented with a phoneme matching task (Patterson & Werker, 1999, 2002, 2003) and the results demonstrated that the 4-month-old infants successfully matched the voice to the corresponding face, but that older infants did not. Measures of their selective attention to this task showed that the 4-month-old infants attended more to the eyes of the faces during the task, not attending to the redundant speech information at the mouth, but older infants attended equally to the eyes and mouth, although they did not match the voice to the face. Experiment 3 presented infants with a fluent speech matching task (Lewkowicz et al., 2015) which demonstrated that although the infants (12-14-months) did not systematically match the voice to the corresponding face, the infants attended more to the mouth region, which would have provided them with the necessary redundant information. Overall, these studies demonstrate that there are developmental changes in how infants distribute their visual attention to faces as they learn about speech and that the complexity of the speech is a critical factor in how they allocate their visual attention.
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