PSY E112 Lecture Notes - Lecture 3: Coarticulation, Phoneme, Speech Perception
Document Summary
Articulators: mouth structures that make speech sounds (jaw, tongue, lips, soft palate) Variability in speech requires perceptual tricks to overcome it. Speech more than creating a sequence of phonemes; phonemes overlap (overlap affects sound of phonemes and our expectations about the other ones around them) Speech sounds for word are not produced in a discrete sequence. Info about speech sounds is spread over time (info about diff. sounds overlaps in. Sound associated with a phoneme varies depending in its context (sounds time) preceding/following it) Some sounds can correspond to more than one phoneme. When a child is younger than one year can distinguish between phonemes used in language. Over time, brain discards unneeded info. (child learns that they do not need to track each distinction) and so this ability is lost. Categorical perception: tendency of perceivers to disregard phys. differences between stimuli and perceive them as the same. Depending on knowledge and experience, allows us to perceive sounds as one.
