chapter 11-music and speech perception Flashcards
musical notes
sounds of music extend across a frequency range from about 25 to 4500 Hz (range we’re most sensitive to)
pitch
the psychological aspect of sounds related mainly to the fundamental frequency; the perceptual connection of frequency
octave
the interval between two sound frequencies having a ratio of 2:1; relationship between frequency
example of octave
perceive doubling as higher, but its still the same thing; mathematical relationship
tone height
the sound quality corresponding to the level of pitch, monotonically related to frequency
chords
created when three or more notes with different pitches are played simultaneously
consonant chords
have simple ratios of note frequencies; 2:1, 3:2 (perfect 5th), 4:3
dissonant chords
less elegant ratios of note frequencies; complex ratios, 16:15, 45:32
cultural differences in chords
western: heptatonic
javanese: pentatonic, fewer notes
infants and octaves
can detect inappropriate notes on both scales, culturally learned
melody
arrangement of notes or chords in succession; twinkle twinkle little star
a melody is not a sequence of specific sounds but a ___ between successive notes
relationship
melodies can change ___ or keys and still be the same
octaves
tempo
the perceived speed of the presentation of sounds
rhythm
repeated pattern; humans are natural rhythm detectors
bolton experiments
sequence of identical sounds, perfectly spaced in time, but no rhythm; listeners reported hearing first sound of group as accented, while the rest remain unaccented; humans will put rhythm in naturally
syncopation
deviating from the regular rhythm
complex sounds of music (__ created by changing frequencies over time) are processed where
melodies; belt and parabelt regions
music in the limbic system
amygdala-fear/emotion
hippocampus-memory formation/retrieval
music can trigger
memories and motor patterns
mental movies occur in
medial prefrontal cortex
dance moves occur in
lateral premotor cortex
humans are capable of producing many speech sounds
5000 different languages, over 850 different speech sounds
vocal tract
the airway above the larynx used for the production of speech; flexibility is important in speech production