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Mothers say "baby" and their newborns do not choose to listen: a behavioral preference study to compare with ERP results.

Moon C, Zernzach RC, Kuhl PK - Front Hum Neurosci (2015)

Bottom Line: Previously published results from neonatal brain evoked response potential (ERP) experiments revealed different brain responses to the single word "baby" depending on whether it was recorded by the mother or an unfamiliar female.These results are consistent with behavioral preference studies in which infants altered pacifier sucking to contingently activate recordings of the maternal vs. an unfamiliar female voice, but the speech samples were much longer and information-rich than in the ERP studies.Neonates can apparently recognize the maternal voice in brief recorded sample (previous ERP results) but they are not sufficiently motivated by it to alter sucking behavior.

View Article: PubMed Central - PubMed

Affiliation: Department of Psychology, Pacific Lutheran University Tacoma, WA, USA.

ABSTRACT
Previously published results from neonatal brain evoked response potential (ERP) experiments revealed different brain responses to the single word "baby" depending on whether it was recorded by the mother or an unfamiliar female. These results are consistent with behavioral preference studies in which infants altered pacifier sucking to contingently activate recordings of the maternal vs. an unfamiliar female voice, but the speech samples were much longer and information-rich than in the ERP studies. Both types of neonatal voice recognition studies imply postnatal retention of prenatal learning. The preference studies require infant motor and motivation systems to mount a response in addition to voice recognition. The current contingent sucking preference study was designed to test neonatal motivation to alter behavior when the reward is the single word "baby" recorded by the mother or an unfamiliar speaker. Results showed an absent or weak contingent sucking response to the brief maternal voice sample, and they demonstrate the complementary value of electrophysiological and behavioral studies for very early development. Neonates can apparently recognize the maternal voice in brief recorded sample (previous ERP results) but they are not sufficiently motivated by it to alter sucking behavior.

No MeSH data available.


Mean sucks per minute in the 10 min presentation period of the two MS groups (N = 36 total) and the Stranger-Stranger Group (N = 24). For the MS-Mother first group, the maternal voice was presented in minutes 1, 3, 5, 7, and 9. For the MS-Stranger first group, the maternal voice was presented in minutes 2, 4, 6, 8, and 10.
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Figure 2: Mean sucks per minute in the 10 min presentation period of the two MS groups (N = 36 total) and the Stranger-Stranger Group (N = 24). For the MS-Mother first group, the maternal voice was presented in minutes 1, 3, 5, 7, and 9. For the MS-Stranger first group, the maternal voice was presented in minutes 2, 4, 6, 8, and 10.

Mentions: An analysis was conducted with the entire sample comparing the MS (N = 36) and SS (N = 24) groups to test whether infant opportunities to suck to activate the maternal voice would result in more sucking overall during the 10 min session, whether or not a higher sucking frequency was confined to the maternal voice periods. A mixed two factor ANOVA included Stimulus Group (2) × Minutes (10). There was no main effect of Stimulus Group (F(1,57) = 1.9, p = 0.18, ηp2 = 0.03), no main effect of Minutes (F(1,513) = 1.33, p = 0.22, ηp2 = 0.02) and no interaction effect of Group X Minutes (F(9,513) = 0.89, p = 0.22, ηp2 = 0.12). See Figure 2.


Mothers say "baby" and their newborns do not choose to listen: a behavioral preference study to compare with ERP results.

Moon C, Zernzach RC, Kuhl PK - Front Hum Neurosci (2015)

Mean sucks per minute in the 10 min presentation period of the two MS groups (N = 36 total) and the Stranger-Stranger Group (N = 24). For the MS-Mother first group, the maternal voice was presented in minutes 1, 3, 5, 7, and 9. For the MS-Stranger first group, the maternal voice was presented in minutes 2, 4, 6, 8, and 10.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4373280&req=5

Figure 2: Mean sucks per minute in the 10 min presentation period of the two MS groups (N = 36 total) and the Stranger-Stranger Group (N = 24). For the MS-Mother first group, the maternal voice was presented in minutes 1, 3, 5, 7, and 9. For the MS-Stranger first group, the maternal voice was presented in minutes 2, 4, 6, 8, and 10.
Mentions: An analysis was conducted with the entire sample comparing the MS (N = 36) and SS (N = 24) groups to test whether infant opportunities to suck to activate the maternal voice would result in more sucking overall during the 10 min session, whether or not a higher sucking frequency was confined to the maternal voice periods. A mixed two factor ANOVA included Stimulus Group (2) × Minutes (10). There was no main effect of Stimulus Group (F(1,57) = 1.9, p = 0.18, ηp2 = 0.03), no main effect of Minutes (F(1,513) = 1.33, p = 0.22, ηp2 = 0.02) and no interaction effect of Group X Minutes (F(9,513) = 0.89, p = 0.22, ηp2 = 0.12). See Figure 2.

Bottom Line: Previously published results from neonatal brain evoked response potential (ERP) experiments revealed different brain responses to the single word "baby" depending on whether it was recorded by the mother or an unfamiliar female.These results are consistent with behavioral preference studies in which infants altered pacifier sucking to contingently activate recordings of the maternal vs. an unfamiliar female voice, but the speech samples were much longer and information-rich than in the ERP studies.Neonates can apparently recognize the maternal voice in brief recorded sample (previous ERP results) but they are not sufficiently motivated by it to alter sucking behavior.

View Article: PubMed Central - PubMed

Affiliation: Department of Psychology, Pacific Lutheran University Tacoma, WA, USA.

ABSTRACT
Previously published results from neonatal brain evoked response potential (ERP) experiments revealed different brain responses to the single word "baby" depending on whether it was recorded by the mother or an unfamiliar female. These results are consistent with behavioral preference studies in which infants altered pacifier sucking to contingently activate recordings of the maternal vs. an unfamiliar female voice, but the speech samples were much longer and information-rich than in the ERP studies. Both types of neonatal voice recognition studies imply postnatal retention of prenatal learning. The preference studies require infant motor and motivation systems to mount a response in addition to voice recognition. The current contingent sucking preference study was designed to test neonatal motivation to alter behavior when the reward is the single word "baby" recorded by the mother or an unfamiliar speaker. Results showed an absent or weak contingent sucking response to the brief maternal voice sample, and they demonstrate the complementary value of electrophysiological and behavioral studies for very early development. Neonates can apparently recognize the maternal voice in brief recorded sample (previous ERP results) but they are not sufficiently motivated by it to alter sucking behavior.

No MeSH data available.