Mature neural responses to Infant-Directed Speech but not Adult-Directed Speech in Pre-Verbal Infants.
Infant directed speech (IDS), the speech register adults use when talking to infants, has been shown to have positive effects on attracting infants' attention, language learning, and emotional communication. Here event related potentials (ERPs) are used to investigate the neural coding of IDS and ADS (adult directed speech) as well as their discrimination by both infants and adults. Two instances of the vowel /i/, one extracted from ADS and one from IDS, were presented to 9-month-old infants and adults in two oddball conditions: ADS standard/IDS deviant and IDS standard/ADS deviant. In Experiment 1 with adults, the obligatory ERPs that code acoustic information were different for ADS and IDS; and discrimination, indexed by mismatch negativity (MMN) responses, showed that IDS and ADS deviants were discriminated equally well; although, the P3a response was larger for IDS suggesting it captured adults' attention more than did ADS. In infants the obligatory responses did not differ for IDS and ADS, but for discrimination, while IDS deviants generated both a slow-positive mismatch response (MMR) as well as an adult-like MMN, the ADS deviants generated only an MMR. The presence of a mature adult-like MMN suggests that the IDS stimulus is easier to discriminate for infants.
MARCS Institute for Brain, Behaviour and Development, Western Sydney University, Penrith, Australia.
Varghese
V
Peter
MARCS Institute for Brain, Behaviour and Development, Western Sydney University, Penrith, Australia.
Marina
M
Kalashnikova
MARCS Institute for Brain, Behaviour and Development, Western Sydney University, Penrith, Australia.
Aimee
A
Santos
MARCS Institute for Brain, Behaviour and Development, Western Sydney University, Penrith, Australia.
Denis
D
Burnham
Infancy. 2002 Jul;3(3):365-394
33451217
Trends Neurosci. 2001 May;24(5):283-8
11311381
PLoS One. 2013 Aug 19;8(8):e72360
23977289
Comput Intell Neurosci. 2011;2011:156869
21253357
Infant Behav Dev. 2015 Nov;41:52-63
26311468
J Acoust Soc Am. 2001 Apr;109(4):1526-37
11325124
Science. 1997 Aug 1;277(5326):684-6
9235890
Eur J Neurosci. 2006 Jun;23(11):3081-6
16819998
Neuroreport. 2012 Mar 7;23(4):220-3
22246244
Neuroreport. 2002 Jan 21;13(1):47-51
11924892
Neuroreport. 2002 Jul 19;13(10):1251-4
12151780
Neuroreport. 2001 Aug 8;12(11):2443-8
11496126
Psychophysiology. 2012 Dec;49(12):1590-600
23066846
Dev Sci. 2011 May;14(3):566-81
21477195
Infancy. 2006 Jul;10(1):61-76
33412673
Infant Behav Dev. 2013 Dec;36(4):847-62
24239878
Neuroimage. 2011 Jan 1;54(1):611-21
20691794
Neurosci Lett. 2010 Sep 20;482(1):71-5
20630487
J Cogn Neurosci. 2005 Nov;17(11):1704-13
16269107
Brain Topogr. 2011 Oct;24(3-4):192-203
21445665
Neuron. 2010 Sep 9;67(5):713-27
20826304
Child Dev. 1994 Dec;65(6):1663-77
7859548
Dev Sci. 2012 Mar;15(2):212-21
22356177
J Acoust Soc Am. 2010 Jul;128(1):389-400
20649233
Int J Neurosci. 2001 Aug;109(3-4):245-60
11699331
Infancy. 2013 Sep 1;18(5):
24244108
Ear Hear. 2002 Apr;23(2):118-36
11951848
Proc Natl Acad Sci U S A. 2012 Sep 25;109(39):15953-8
23019379
Int J Psychophysiol. 2015 May;96(2):84-94
25819712
Brain Res. 2006 Mar 10;1077(1):135-43
16487946
Brain Cogn. 2007 Oct;65(1):14-21
17659820
Nature. 1997 Jan 30;385(6615):432-4
9009189
Neuroimage. 2011 Aug 1;57(3):723-32
21507346
Brain Res. 2012 Aug 27;1470:52-8
22771705
Psychophysiology. 1987 Jul;24(4):375-425
3615753
Speech Commun. 1996 Dec 1;20(3):255-272
21461127
Arch Dis Child Fetal Neonatal Ed. 2007 Mar;92(2):F113-6
16905571
Infancy. 2005 Jan;7(1):53-71
33430544
Electroencephalogr Clin Neurophysiol. 1998 Feb;106(2):156-64
9741777
Acta Psychol (Amst). 1978 Jul;42(4):313-29
685709
Hear Res. 2006 Feb;212(1-2):212-23
16480841
J Child Lang. 2008 Nov;35(4):869-902
18838016
Dev Sci. 2014 Jan;17(1):142-58
24205955
Front Psychol. 2012 Jun 26;3:180
22740836
Brain Lang. 2004 Jan;88(1):54-67
14698731
Neuroreport. 1998 Jun 1;9(8):1885-8
9665620
Proc Natl Acad Sci U S A. 2000 Oct 24;97(22):11850-7
11050219
Neuroreport. 2002 Mar 25;13(4):521-5
11930174
Child Dev. 1990 Oct;61(5):1584-95
2245748
J Neurosci Methods. 2007 Aug 15;164(1):177-90
17517438
J Speech Lang Hear Res. 2010 Jun;53(3):543-55
20220028
Clin Neurophysiol. 2003 Jul;114(7):1332-43
12842732
Infant Behav Dev. 2012 Jun;35(3):369-79
22721737
Int J Psychophysiol. 2003 Dec;51(1):5-15
14629918
Neuroimage. 2012 Jan 16;59(2):1735-44
21867764
Clin Neurophysiol. 2007 Dec;118(12):2544-90
17931964
J Cogn Neurosci. 2007 May;19(5):878-92
17488211
Clin Neurophysiol. 2009 May;120(5):887-96
19345610
Hear Res. 2012 Dec;294(1-2):82-94
23103362
Science. 2002 May 24;296(5572):1435
12029126
J Speech Lang Hear Res. 2001 Dec;44(6):1189-200
11776357
Nature. 1994 Jul 28;370(6487):292-5
8035876
Dev Sci. 2007 Sep;10(5):565-75
17683343
Eur J Neurosci. 2014 Dec;40(11):3608-19
25308742