Phonology
-sounds system and knowledge of meanings of sounds
Articulation
-actually producing the sounds of language
Speech Sounds
-the acoustic signals languages use to express meaning
-approx 200 sounds used in language ( no single language uses them all)
-English = 45 different sounds
How do Speech Sounds Represent Meaning
-Distinctive Feature: signifies a difference in sound and changes meaning (place, manner, voicing)
-phones are the different sounds a language uses
-phonemes are the meaningfully different sounds in a language
-allophones are phones that do not differentiate meaning
When Adults Know Language they Know…
-what sounds their language uses
-what sound distinctions signal meaning distinctions
-what sound sequences are possible
-the structure of the sound system underlying these surface properties of language
-children need to acquire this knowledge in development expressively and receptively
Phonological Structure of Words
-words are made up of smaller units
-can count syllables
-recognize rhymes
-mental representation that a word is composed of separable phonemes
Phonotactic Knowledge
-the knowledge of constraints on the sequencing of sounds
Phonological Rules
-voicing: feature of vocal fold vibration for a sound
-voicing assimilation: when two consonants are together in a word, they match in terms of voicing (BlooMSBurg)
-plural: bugs and bikes (v vs vl sounds but perceive same meaning)
Phonetics
-target productions
-IPA
-[]
Phonemics
-what child can actually say
-describing how words sound
-//
Phonetic Features
-Articulatory phonetics: how the sounds are produced
-phonetic features: describe sounds using a combination of smaller number of features of the articulatory mechanism that produces those sounds: place, manner, voicing
Place
-where the vocal tract is closed (bilabial, alveolar, palatal, etc.)
Manner
-how the vocal tract is close (stops, fricatives, affricates, nasals, etc.)
Voicing
-whether or not the vocal folds are vibrating or not
Stops
-airflow is completely stopped for a moment /t/, /b/
Fricatives
-airflow is not completely stopped
-/f/, /v/
Languages Have
-there is more to describing the sound of language than simply describing the properties of individual sound segments and how these segments are sequenced in words
-Languages also have stress patterns and prosodic qualities that can change meaning
Reflexive Crying and Vegetative Sounds
-newborns cry and it is not meaningless
-caregivers provide feedback/meaning to cries which reinforces their communication
-establishing meaning and reciprocal give and take very early on
-burping, coughing, breathing, sucking
Cooing and Laughter
-6 to 8 wks
-sounds made when they appear happy and content
-series of vowel like sounds strung together, but separated by intakes of breath
-necessary precursor to language
Vocal Play or Expansion Stage
-16 to 30 wks
-variety of different consonant and vowel sounds
-gain increasing control over production of sounds
-combine their sounds into increasingly long and complex series
-marginal babbling
-squeals, growls, “friction noises”
Marginal Babbling
-long series of sounds that infants produce by the end of expansion stage
Reduplicated/Canonical Babbling
-6 to 9 mo
-some consent and vowels combination reduplicated
-mamama
-dadada
Nonreduplicated/Variegated Babbling
-range of consonants and vowels produced expands further
-adding in additional sounds
-gain prosody (rise and fall) adult intonation patterns
-jargon: wordless sentences
Influence of the Target Language on Babbling
-course of pre-speech vocal development appears universal
-beginning as early as 6 months, sounds babies produce are influenced by the language they hear: babbling drift
-brain is starting to tune in to native language