Psc101 Owings 4

Psc101 Owings 4 - Human maternal vocalizations to infants...

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1 Chapter 19 Human maternal vocalizations to infants as biologically relevant signals: An evolutionary perspective What is infant directed speech? (Fernald) 4 versions of melodies of infant directed speech encouragement, stimulation, soothing, prohibiting
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3 Why do we use these different melodies to accomplish different goals? Fernald uses the same approach that scientists who study animal communication have used - playbacks show that each melody is the one that works for its context Natural selection generates a match between the structure of vocalizations and the biases in the assessment systems of their targets the assessment systems shape the structure of the signals (remember mate choice/sex sel) signals capitalize on biases in assessment systems Proximate sources of match? Not many studies on how we develop proficiency in using melodies of speech to manage infant behavior Hypotheses Young kids may not be good at first at talking to infants, but get better over time Modeling parents and their intonations Trial and error by caregivers - infants operantly condition our melodies of speech Regulatory analogy- organisms function as though they are self-interested systems that regulate themselves and their circumstances Thermostatically-regulated heating/cooling analogy Feedback is fundamental to regulation organisms behave in a very similar sort of way e.g. temperature regulation Regulation
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4 Regulatory analogy- organisms function as though they are self-interested systems that regulate themselves and their circumstances Thermostatically-regulated heating/cooling analogy Feedback is fundamental to regulation organisms behave in a very similar sort of way e.g. temperature regulation Organisms don’t just regulate their own states sometimes they regulate external circumstances, including the behavior of others e.g., white pelican young e.g., infant-directed speech used to regulate infant behavior choosing the right melody minimizes the
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Psc101 Owings 4 - Human maternal vocalizations to infants...

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