{"id":4488,"date":"2018-10-07T01:07:06","date_gmt":"2018-10-07T05:07:06","guid":{"rendered":"https:\/\/www.amyork.ca\/academic\/zz\/?p=4488"},"modified":"2018-10-07T01:11:19","modified_gmt":"2018-10-07T05:11:19","slug":"decision-making-arthur-b-markman-and-douglas-medin","status":"publish","type":"post","link":"https:\/\/www.amyork.ca\/academic\/zz\/cognitive-psychology\/decision-making-arthur-b-markman-and-douglas-medin\/","title":{"rendered":"Decision-Making (Arthur B Markman and Douglas Medin)"},"content":{"rendered":"

Implicit Cultural Knowledge<\/u><\/p>\n

-Knowledge that is not always available to conscious thought<\/p>\n

Diatonic Scale Step <\/u>-all whole steps<\/p>\n

Chromatic Scale Step<\/u><\/p>\n

-all semitones or half steps<\/p>\n

Infancy and Music<\/h2>\n

-Infants treat melodies with the same melodic contour Pup and down pattern) as the same and respond to the similarity of rhythmic patterns even across changes of tempo -The child\u2019s cognition of musical patterns contains the seeds of the adult\u2019s cognition<\/p>\n

Prenatal Experience<\/h2>\n

-The fetus is responsive to sounds as early as the second trimester<\/p>\n

-Mother\u2019s characteristic patterns of pitch and stress accents spoken repeatedly during the third trimester were better preferred by babies.<\/p>\n

Study: DeCasper and Spence\u2019s Newborns Stories<\/h2>\n

-Children suck on a blind nipple to hear a children\u2019s story<\/p>\n

-Children that heard the story in the womb sucked more to hear the story, whereas children who had not been read stories in the womb had no preference<\/p>\n

-Babies who had been read stories in the womb liked speech that was low-pass filtered as much as normal unfiltered speech, whereas babies who had not been read to did not.<\/p>\n

Perceptual Grouping<\/u><\/p>\n

-Just as adults segregate a sequence of notes alternating between pitch and streams, so do infants.<\/p>\n

Study: Thorpe and Trehub\u2019s Six-Note Sequences<\/h2>\n

-Infants are played AAAEEE and are trained to move their head whenever they hear a change in the music<\/p>\n

-The infants noticed changes when they occurred within groups, but not between groups<\/p>\n

Pitch<\/h2>\n

-Infant pitch perception is accurate and displays octave equivalence just like adults<\/p>\n

-Adults have pitch constancy, and infants have it too P7 or 8 months old)<\/p>\n

-Just like adults, infants have difficulty discerning the pitch when the harmony present is high in frequency and remote from the frequency of the missing fundamental<\/p>\n

-Infants 7-10 months old can discriminate direction of pitch change for intervals as small as one half-step\/semitone.<\/p>\n

Melodic Pitch Patterns<\/h2>\n

-Twinkle, Twinkle, Little Star is played for the babies<\/p>\n

-If it is changed by 3 semitones but the pitch is not changed, they did not notice<\/p>\n

-But, if the melody is shifted 3 semitones in pitch and its contour is altered, the babies show a heart-rate deceleration \u201cstartle response\u201d<\/p>\n

-For babies and adults, the transposition sounds like the same old melody again, whereas the different contour melody sounds new.<\/strong><\/p>\n

-From Trehub and Thorpe\u2019s studies, they show that infants, like adults, encode and remember the contours of melodies they hear.<\/strong><\/p>\n

Pitch Class<\/h2>\n

-A set of all pitches that are a whole number of octaves apart -ex: the pitch class Cs in all octaves<\/p>\n

Study: Standard Western Diatonic Scales<\/h2>\n

-7 to 11 and 12 month olds found it easier to detect the diatonic patterns than the nondiatonic patterns<\/p>\n

-But, 6 month olds performed equally well with diatonic and nondiatonic patterns<\/p>\n

-i.e. the younger infants were not yet accustomed to the standard western diatonic scale whereas older infants were<\/p>\n

Perfect Fifth<\/h2>\n

-Between C and G<\/p>\n

-The fundamental building block for all countries<\/p>\n

-Gestalt theorists call this \u201cgood\u201d pattern construction<\/p>\n

Childhood<\/h2>\n

-During their second year, children begin to recognize certain melodies as stable entities in their environment and can identify them even after a considerable delay<\/p>\n

Childhood Singing<\/h2>\n

-Children begin to sing spontaneously between the age of 9 months and a year. -At 18 months, the child generates recognizable, repeatable songs<\/p>\n

-At two years old, the child repeats brief phrases over and over again.<\/p>\n

-Child songs are unlike adult songs because they lack a stable pitch framework<\/p>\n

-At age 5, children are able to produce easily recognizable versions of songs<\/p>\n

Absolute Pitch<\/h2>\n

-The ability to identify pitches by their note names even in the absence of musical context<\/p>\n

-Only occurs in 4-8% of musicians; quite rare<\/p>\n

-Not necessary for being able to play music<\/p>\n

-Most children have the underlying ability for acquiring absolute pitch<\/p>\n

-Takeuchi and Hulse say that absolute pitch can be acquired by anyone but only during the critical period during the fifth or sixth year<\/p>\n

-With a moderate amount of training, people develop a \u201ctemporary and local\u201d sense of absolute pitch that leads them to encode what they hear and produce in terms of the tonal framework provided by the current context<\/p>\n

Residual Absolute Pitch<\/h2>\n

-Adults are typically able to approximate the pitch levels of familiar songs<\/p>\n

-Ex: Levitin\u2019s study; young adults sang popular songs they only heard once at approximately the correct pitch level<\/p>\n

Melodic Contour and Tonality<\/h2>\n