Lecture 18 Flashcards

1
Q

Phoneme

A

A unit of sound that distinguishes one word from another in a particular language
-E.g. kill vs kiss (3 phenomes each)

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2
Q

Respiration

A

The diaphragm psuhes air out of lungs, through the trachea, up to the larynx

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3
Q

Phonation

A

The process through which vocal folds are made to vibrate when air pushes out of the lungs
-E.g. small vocal folds = high-pitched voices
-The spectrum of sound passing through the vocal folds has a harmonic spectrum

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4
Q

Articulation

A

The act or manner of producing a speech sound using th vocal tract
-Humans can change the shape of their vocal tract by manipulating their jaws, lips, tongue body, tongue tip, and velum

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5
Q

Formants

A

Changing size and shape of vocal tracts will increase/decrease energy at different frequencies. Peaks in the speech spectrum are called this…

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6
Q

have shorter vocal tracts

A

Formants have higher frequencies for people who…

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7
Q

identify the phoneme

A

Most of the time, the first 3 formants are sufficient to…

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8
Q

Spectograms

A

The spectrum of speech sounds changes over time. these help represent that third dimension (time)

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9
Q

Coarticulation

A

-Speech production is very fast : 10-15 constants and vowels per second
-Experienced talkers position tongue, etc. in anticipation of next constant or vowel, causing this.
-This will cause overlap in articulatory or speech patterns

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10
Q

'’Motor Theory’’ os speech perception

A

Motor processes used to produce speech sounds are used in reverse to understand the acoustic speech signal

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11
Q

McGurk Effect

A

McGurk and MacDonald (1976) showed that what someone sees can affect what they hear

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12
Q

Speech production is as complex if not more complex than speech perception…

A

What is the problem with the ‘‘motor theory’’ of speech perception?

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13
Q

Reduce the number of phonetic categories

A

What is the solution to the ‘‘motor theory’’ of speech perception?

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14
Q

Learning to Listen

A

Infants begin filtering out irrelevant acoustics long before they start to say speech sounds`
-E.g. english-speaking infants < 10 months can distinguish between 2 types of ‘‘t’’ sounds that are different phonemes in Hindi, but loose that ability after 10 months, while Hindi infants still continue to make the distinction

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15
Q

Wernicke’s Area

A

Speech without meaning
-Comprehension impairment
-Right hemisphere

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16
Q

Broca’s Area

A

Speech impairment
-Meaning but non-fluent
-Left hemisphere

17
Q

Music is Universal

A

-Brings people together
-Tonal structure
-Rhythmic structure

18
Q

Tone Height

A

A sound quality corresponding to the level of pitch. This is monotonically related to frequency. Low to high.

19
Q

Tone Chroma

A

A sound quality shared by tones that have the same octave interval. Related to notes we hear
-Each note on the musical scale (A-G) has a different one

20
Q

Octave

A

The interval between two sound frequencies having a ratio of 2:1
-E.g. Middle C (C4) has a fundamental frequency of 261.6 Hz; notes that are 1 octave from middle C are 130.8 Hz (C3) and 523.2 Hz (C5)
-A piano has 7 octaves

21
Q

Consonance

A

When 2 or more notes are played simultaneously (referred to as a chord) or sequentially, the combination sounds pleasant, as if the notes ‘‘go together’’
-the fundamental frequency of the two notes have a simple ratio (3:2)

22
Q

Dissonance

A

When 2 or more notes are played simultaneously (referred to as a chord) or sequentially, the combination sounds unpleasant or ‘‘off’’
-the fundamental frequencies of the two notes have a complex ratio (42:33)

23
Q

Scale

A

A particular subset of the notes in an octave

24
Q

Key

A

The scale that functions as the basis of a musical composition for example, a composition in the key of C major contains notes mostly from the C major scale

25
Q

played in the right key

A

Notes sound more pleasant when…

26
Q

Melody

A

A sequence of notes or chords perceived as a single coherent structure
-E.g. ‘‘twinkle, twinkle, little star’’ or ‘‘row, row, row your boat’’
-Defined by contours
-Can change octaves or keys and still be the same melody

27
Q

Contours

A

The pattern of rises and declines in pitch

28
Q

the right auditory cortex

A

Music is mostly processed in..

29
Q

Congenital Amusia

A

Umbrella term for lifelong musical disabilities that cannot be attributed to intellectual disability, lack of exposure, or brain damage after birth
-Impaired at detecting pitch deviations that are smaller than two semitones
-They cannot report tones that are out-of-key (tone-deafness)
-No P600

30
Q

ERAN (early right anterior negativity)

A

A negative event-related potential (ERP) that occurs 200 ms after the detection of a melodic tonal violation

31
Q

P600

A

A positive event-related potential (ERP) that occurs 600 ms the detection of a melodic tonal violation. It reflects the conscious perception of the tonal violation.

32
Q

inferior frontal gyrus and the superior temporal gyrus (STG) with disrupted transmission of information between these 2 core regions and the left STG

A

The amusic brain exhibits structural anomalies in a right frontotemporal network involving the…

33
Q

Absolute Pitch

A

A rare ability whereby some people are able to very accurately name or produce notes without comparison to other notes
-Recent studies suggest it is 1/1500