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Cognition and Perception

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Title: Cognition and Perception


1
Cognition and Perception
2
Analytic vs. Holistic Thinking
  • There appear to be two basic systems for
    reasoning analytic and holistic reasoning.
  • Analytic thinking involves
  • separating objects from each other
  • breaking down objects to their component parts
  • using rules to explain and predict an objects
    behavior
  • relies on abstract thought.

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  • Holistic thinking involves
  • an orientation to the entire scene
  • attending to the relations among objects
  • predicting an objects behavior on the basis of
    those relationships
  • relies on associative thought.
  • Recently, there has been much research to suggest
    that these two very fundamental ways of thinking
    vary across cultures.

4
  • The way people understand the physical world is
    based on how they understand the social world.
  • In independent cultures, people learn to think of
    others as being fundamentally independent from
    each other, and composed of their component
    parts.
  • Likewise, the physical world can be understood
    the same way.

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  • Likewise, people who are socialized in an
    interdependent context come to learn to attend to
    relations among people.
  • This is generalized to an attention of relations
    among objects in ones environment.
  • Research by Richard Nisbett and his former
    students provides much evidence from a wide
    variety of different sources that demonstrates
    this fundamental cultural difference.

6
Analytic Thinkers Can Better Separate Objects
Within a Scene
  • When perceiving a scene, holistic thinkers are
    more likely to perceive it as an integrated
    whole. This makes it more difficult to separate
    objects from each other in a scene. This is
    called field dependence.
  • Being able to separate objects from each other is
    termed field independence.
  • Often field independence is tested with a Rod and
    Frame task, where a rod is inside of a frame and
    they are both rotated.

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How did you do?
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What do you see here?
  • Participants are first asked to describe the
    original pictures while they are looking at them.

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  • When Westerners are shown pictures of animals and
    are asked to describe the scene, they typically
    start off by describing the focal animal (e.g., a
    wolf) (see Masuda Nisbett, 2001).
  • East Asians, in contrast, more often describe the
    scene by starting off with the context (e.g., a
    snowy forest scene).

22
  • Later, participants are shown other photos, some
    of which theyve seen before, and some which
    include the original animal with a different
    background. They are then asked whether they
    have seen the animal in the picture before.

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Recognition Accuracy for Previously Seen Animals
  • Westerners performance is relatively unaffected
    by the background of the scene.
  • East Asians performance is significantly worse
    if the background of the scene is switched on
    them.
  • East Asians appear to see the scene as bound
    together in an irreducible whole. Westerners see
    it as a collection of parts.

24
  • These same kinds of photos (i.e., an animal in a
    natural scene) were shown to young and elderly
    Americans and Singaporeans while in an fMRI
    scanner (Goh et al., 2007).
  • The results showed that the object processing
    regions of the brain were especially active for
    all groups except the elderly Singaporeans.
  • This suggests that, with age, Singaporeans come
    to increasingly view scenes in a holistic manner.

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How does the boy in the centre feel?
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  • East Asians judgments of the centre targets
    facial expression are more influenced by the
    facial expressions of the surrounding others than
    are Westerners (Masuda, Ellsworth, et al., 2008).
  • Judging emotional expressions is more of a social
    event for East Asians.
  • How is it that East Asians are influenced more by
    the background of scenes? Do they recall
    background information better, or are their eyes
    processing the scene differently.
  • To address this the researchers had participants
    wear an eye monitor and tracked their gaze.

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Interpreting Emotional Experience
Westerners Attention
East Asians Attention
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Masuda, Ellsworth, et al., 2008
  • In the first second, people from both cultures
    largely look at the target figure. After that,
    the East Asians look more to the background than
    do Westerners, who continue to be largely fixated
    on the focal target.
  • Other studies find that this cultural pattern
    also happens for nonsocial scenes. East Asians
    appear to more habitually look for relations in
    their environments.

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Perceptual Styles and Art
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Comparisons of Paintings in Museums
Masuda, Gonzales, et al., 2008
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  • Why are there these different artistic traditions?

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Drawing by a European American Female
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Drawing by an East Asian Female
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Comparison of Student Drawings
Masuda, Gonzales, et al., 2008
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Taking Photos American Style
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Taking Photos East Asian Style
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Comparison of Photos
Masuda, Gonzales, et al., 2008
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  • To summarize, Westerners and East Asians
    represent scenes differently.
  • Westerners prefer lower horizons, which bring an
    emphasis to the foreground objects, and they
    prefer larger central figures.
  • East Asians prefer higher horizons, with busier
    scenes, highlighting the relations among objects,
    and they prefer smaller central figures.

43
Understanding Other Peoples Behaviors
  • Analytic thinkers understand objects by focusing
    on their component parts, whereas holistic
    thinkers understand objects by considering their
    relations with the context.
  • The same distinction can be applied to how we
    understand people.
  • Explaining peoples behaviors by attending to
    their personal characteristics is known as a
    dispositional attribution.
  • In contrast, explaining peoples behaviors by
    attending to contextual variables is known as a
    situational attribution.

44
  • Research with Westerners consistently finds that
    they attend more to dispositional information
    than situational information when explaining
    others, even when the situational constraints on
    peoples behaviors are obvious.
  • In one classic study, American students were
    asked to evaluate an essay writers true
    attitudes by reading an essay that they had
    written which espoused either positive or
    critical attitudes towards Fidel Castro (Jones
    Harris, 1967).
  • Participants assumed that the writer of the
    pro-Castro essay had more positive feelings
    towards Castro than the writer of the anti-Castro
    essay.

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  • In other conditions, participants were told of
    some significant situational constraints on the
    essay-writers behaviors.
  • In one condition, participants were told that the
    authors had been assigned their positions (i.e.,
    either pro-Castro or anti-Castro).
  • In another condition, participants watched as
    another subject was asked to read a pre-written
    essay (either pro-Castro or anti-Castro).
  • Participants always assumed that the person
    reading or writing the anti-Castro essay had more
    negative feelings towards Castro than the person
    reading or writing the pro-Castro essay.
  • This is termed the fundamental attribution
    error.

46
  • One study explored peoples attributions in India
    and the US (Miller, 1984).
  • Participants, who ranged in age from 8 year-olds
    to adults, read a number of scenarios where a
    target person did something, and then offered
    explanations for the target persons behaviors.
  • Their explanations were coded for being either
    dispositional or situational.

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  • American and Indian 8 year-olds gave similar
    attributions.
  • As Americans got older, they made more
    dispositional attributions, but not situational
    ones. American adults show the fundamental
    attribution error.
  • Older Indians made more situational attributions
    but not dispositional ones. Indian adults show a
    reverse fundamental attribution error.

48
  • Analytic and holistic thinkers show different
    reasoning styles.
  • Analytic reasoners are more likely to apply
    abstract rules in order to solve problems.
  • Holistic reasoners attend more to relationships
    among objects or events, looking for similarities
    or temporal relations.

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Which Flowers Belong to Which Groups?
Group 1 Group 2
A B
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Differences in Similarity Judgments between
Americans and East Asians
  • European-Americans make these decisions more
    based on applying rules.
  • East Asians and Asian-Americans make these
    decisions more based on the overall similarity
    between the targets and the groups.
  • The cultural differences only emerge when there
    is conflict between analytic and holistic
    solutions. Both groups can reason well in purely
    analytic or purely holistic tasks.

Percentage
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Where do Reasoning Differences Come From?
  • Nisbett (2003) argued that these reasoning
    differences reflect habits of thought dating back
    to classical Greek and Confucian Chinese thought.
  • Analytic thought is evident in Aristotles view
    that objects possess properties such as
    gravity, and the Platonic view that the world
    consists of discrete unchanging objects operating
    by universal laws.
  • Holistic thought is evident in classical Chinese
    ideas of harmony, interconnectedness, and change,
    e.g., early Chinese discoveries of action at a
    distance and in Chinese medical traditions.
  • However, more recent research finds evidence for
    holistic thinking pretty much everywhere outside
    of the Western world.

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Tolerance for Contradiction
  • One kind of reasoning, related to holistic
    reasoning, may have come from China.
  • Chinese show a relative acceptance for
    contradiction, which has been termed naive
    dialecticism (Peng Nisbett, 1999).
  • Based on a view that everything is connected and
    is constantly in flux. Symbolized by the yin
    and the yang - the universe moves back and forth
    between opposite poles.

53
  • In contrast, Aristotle proposed a different
    system for dealing with contradiction.
  • He offered 3 principles.
  • Law of Identity A A
  • Law of Excluded Middle A B, or A Not B,
    these are the only two possibilities.
  • According to this perspective, there cannot be
    any contradiction.

54
  • Consider the following two arguments
  • A A sociologist who surveyed college students
    from 100 universities claimed that there is a
    high correlation among college female students
    between smoking and being skinny.
  • B A biologist who studied nicotine addiction
    asserted that heavy doses of nicotine often lead
    to becoming overweight.
  • A number of contradictory pairs of arguments were
    created, and American and Chinese participants
    received either just one argument from the pair,
    or they received both arguments.
  • They were asked to evaluate how plausible they
    found the argument(s).

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  • Participants tended to view one argument to be
    more plausible than the other.
  • Americans who received both arguments showed a
    counternormative reasoning style in that they
    were more convinced that the stronger argument
    was correct when they also heard of a
    contradictory argument than if they had only
    heard the strong argument by itself.
  • In contrast, Chinese viewed a strong argument to
    be less plausible if they heard a contradictory
    argument.
  • However, they showed a counternormative response
    in viewing a weak argument as being more
    plausible if it was paired with a contradictory
    argument.

56
  • These attitudes towards contradiction are also
    evident in attitudes towards the self.
  • East Asians are more likely than Westerners to
    offer apparently contradictory self-descriptions,
    saying, for example, that they are both shy and
    outgoing (see Spencer-Rodgers et al., 2004).
  • There are also cultural differences in peoples
    predictions about the future.
  • Westerners are more likely to view the future as
    unfolding in a linear way from the past. East
    Asians, in contrast, view change to be more
    cyclical, where good times might be followed by
    bad.

57
Talking and Thinking
  • What is the relation between talking and our
    private thoughts? Are our thoughts a silent
    monologue, involving processes the same as
    speech?
  • Talking is an analytic process. We can only
    specify one idea at a time that is arranged in a
    sequence. It is difficult to discuss holistic
    ideas in which there are multiple connections
    that are simultaneously relevant.
  • Holistic thinking should be impaired more by
    saying ones thoughts out loud than would
    analytic thinking.

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  • One example of this can be seen in facial
    recognition.
  • Studies find that when people verbally describe a
    face that this later impairs their recognition of
    the face, apparently because ones verbal
    descriptions do not capture the whole of the face
    (see Schooler Engstler-Schooler, 1990).

59
  • Westerners appear to value the spoken word more
    than East Asians.
  • In Judeo-Christian beliefs the Word is sacred.
  • The ancient Greeks viewed knowledge to emerge
    through the spoken word.
  • The First Amendment to the US constitution is to
    protect ones freedom of speech.
  • Lao Tzu said that He who knows does not speak.
    He who speaks does not know.
  • Various Eastern religions also emphasize silent
    meditation rather than prayer.
  • A Korean proverb states that An empty cart makes
    more noise.

60
  • The relation between thinking and talking has
    been explored by Heejung Kim (2002, 2008), who
    noticed, as a Korean grad student in the US, that
    there was an unfamiliar emphasis on discussing
    your ideas.
  • She wanted to investigate whether the quality of
    peoples thinking is affected by saying ones
    thoughts out loud.
  • She had participants attempt some items from the
    Ravens Matrices IQ test under different
    conditions.
  • You can try to solve the next 2 items.

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  • Kims studies were similar to this, except that
    Euro-American and Asian-American students (all of
    whom were born in the US) were assigned to one of
    two conditions
  • In a Thinking Aloud Condition participants first
    completed 10 IQ items silently, and then they
    completed another 10 IQ items while saying their
    thoughts out loud.
  • In an Articulatory Suppression Condition
    participants first completed 10 IQ items
    silently, and then they completed another 10 IQ
    items while saying the alphabet out loud.
  • The dependent variable was how many IQ items they
    answered correctly when they were thinking aloud
    or saying the alphabet compared to when they were
    answering the items silently.

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Performance on Ravens Matrices
  • When Euro-Americans are thinking aloud their
    performance is relatively unaffected.
  • In contrast, Asian-Americans perform
    significantly worse when they are thinking aloud
    compared with when they are silent.
  • On the other hand, Euro-Americans perform worse
    when they are saying the alphabet.
  • Asian-Americans are relatively unaffected by
    saying the alphabet.
  • This suggests that Asian-Americans silent
    thoughts are non-verbal on this task, whereas
    Euro-Americans are thinking verbally about the
    task even when silent.

Number Correct Compared with When Answering
Silently
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Implicit vs. Explicit Communication
  • All spoken communication contains both implicit
    (i.e., nonverbal) and explicit information.
  • In high context cultures, where people are
    highly connected with each other and there is
    much shared information to guide behavior, less
    explicit information is needed to be
    communicated.
  • In low context cultures, there is less shared
    information to guide behavior and more explicit
    information is necessary in order to be clearly
    understood.
  • People in high context cultures should have a
    harder time ignoring implicit information than
    people in low context cultures.

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  • One study investigated this among Japanese (high
    context) and American (low context) participants
    (see Ishii, Reyes, Kitayama, 2003).
  • Participants listened to words and were asked to
    indicate whether
  • a the meaning of the word was positive or
    negative, or
  • b the tone that the word was spoken was positive
    or negative.
  • How quickly could people make these decisions
    when the tone and the meaning of the word were in
    conflict?
  • People should have a more difficult time ignoring
    the aspect of the word (i.e., the tone or the
    meaning) that they are more used to attending to.

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Interference in Response Time
  • Americans showed more interference when the task
    required that they ignore the meaning of the word
    to make the vocal tone judgment, than when
    ignoring the vocal tone to make a meaning
    judgment.
  • Japanese showed the opposite pattern - it was
    easier for them to ignore the meaning of a word
    than its tone.
  • This suggests that Japanese attend to nonverbal
    information in spoken conversation more than
    Americans.

Amount of Interference
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Does Language Influence Thought?
  • A strong version of the Whorfian hypothesis is
    that language determines thought. Without access
    to the appropriate words people are unable to
    have certain kinds of thoughts.
  • The strong version of this hypothesis has been
    largely rejected.
  • A weaker version of the hypothesis is that
    language influences thought. Having access to
    certain words influences the kinds of thoughts
    that one has.
  • There remains a lively controversy regarding the
    weaker version of the hypothesis.
  • This is highly relevant to cross-cultural
    research as one way that cultures differ is in
    their languages and the words that are available
    to them.

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Language and Color Perception
  • Although color exists along a continuum, color
    terms are discrete.
  • Color terms vary dramatically around the world,
    although there are only a limited number of
    patterns of color terms in all languages.

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  • This leads to the Whorfian question, if people
    dont have a word for green do they still see
    green the same way?
  • Earlier research was conducted with the Dugum
    Dani who only have 2 color terms (e.g., Rosch
    Heider, 1972). The studies showed that the Dani
    could better learn new color terms that were
    closer to the prototypes of English color labels,
    than they could learn new color terms that were
    further from the English prototypes. This
    research was enormously influential in arguing
    that language is independent of thought.
  • However, numerous researchers called attention to
    various technical problems with these studies.
    Recently, new research has been exploring whether
    color terms affect perception of colors.

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  • Language Berinmo
  • Location Papua New Guinea
  • Subjects Monolingual hunters-gatherers
  • Color Terms 5
  • Language Himba
  • Location Namibia, SW Africa
  • Subjects Monolingual semi-nomadic herders
  • Color Terms 5

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Array of Color Samples
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Blue-Green Stimuli
  • Participants were shown triads of color chips and
    were asked to identify which two chips were more
    similar (Roberson et al., 2000, 2005).
  • The chips were equidistant in terms of hue,
    however, two of the chips crossed a boundary
    between two different color terms.
  • Peoples judgments for colors were compared when
    the two chips crossed a color boundary in their
    own language, or in another cultures language.

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Nol-Wor Stimuli
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Dumbu-Burou Stimuli
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  • People make more judgments based on whether the
    color of the chips crossed the boundaries of the
    color terms in their own language than in the
    other languages.

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  • Another way that languages vary is that some have
    egocentric spatial terms, such as right, left, in
    front of.
  • Many languages lack terms for these. People
    describe location in terms of cardinal directions
    (e.g., north, east,...).
  • What will people do when asked to recreate a
    scene when they change the direction that they
    are facing?
  • In one study, Dutch speaking and Guugu Ymithirr
    speaking participants were shown some objects.
    They then went to a different room and were asked
    to recreate the scene.
  • In one condition they faced the same cardinal
    direction in the second room. In the other
    condition they faced a different direction in the
    second room. The DV was how they arranged the
    objects in the second room.

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  • Likewise, another study investigated whether
    people would represent the passage of time
    differently.
  • Most English speakers arrange time as moving from
    the left to the right, likely because this is the
    direction that we read. Arabic-speakers, in
    contrast, arrange time from right to left, as
    they read that way too.
  • In contrast, Australian aborigines who speak Kuuk
    Thaayorre arrange time as moving from the East to
    the West, following the sun.
  • So what happens when Kuuk Thaayorre speakers are
    asked to arrange pictures in a temporal order?

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  • Representing space in absolute terms is common
    among most subsistence societies in the world.
  • This is common even among people who are
    bilingual and have learned egocentric direction
    terms in one of their languages - apparently,
    they prefer to represent space in absolute ways.
  • Chimpanzees also dont represent space in
    egocentric ways.
  • Egocentric space representation appears to be a
    relatively recent development in human history.

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Numerical Cognition in the Absence of Words
  • Much of numeric cognition is a cultural invention
    - for the most part, people have few innate math
    abilities. Most abilities emerge with cultural
    learning.
  • Young children are able to represent numbers up
    to 3, and after that, they require cultural
    learning to represent larger numbers.
  • Some cultures do not have number terms beyond
    two. For example, the Piraha from the Amazon
    have number terms that correspond to 1, 2, and
    many.
  • What happens when the Piraha are asked to do
    simple tasks that require counting to numbers
    beyond 3? (see Gordon, 2004).

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  • The Piraha were asked to do a series of matching
    tasks, such as to guess whether there were any
    nuts remaining in a can after watching some be
    taken out, trying to copy some matching lines, or
    trying to match a series of knocks.
  • In general, they had an approximate understanding
    of magnitude, such that they matched larger
    quantities with increasingly large quantities,
    however, they were only accurate up to small
    numbers, such as to 3 or 4.

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  • The larger the number they were asked to
    represent, the larger was their error, however,
    they did show a general sense of approximate
    quantities.
  • They often would use their fingers to aid their
    performance, however, this was highly inaccurate,
    even for numbers smaller than five.
  • There is still much debate whether these
    indigenous tribes cannot represent numbers
    because they dont have the number terms (a
    Whorfian argument) or because they lack the
    cultural learning.

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  • Subsequent studies reveal that very young
    children, as well as those from other tribes
    without number words (e.g., the Mundurucu from
    the Amazon) represent numbers logarithmically
    (Dehaene, Izard, Spelke, Pica, 2008).
  • Mundurucu participants were shown on a laptop a
    line between the values of one and 10 dots. They
    were then shown a set of dots and were asked to
    indicate the position on a line.

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  • Participants placed the line at positions that
    roughly corresponded to the logarithmic value of
    the number. For example, they rate the middle of
    the scale to be about a 3 rather than a 5.
  • This, together with the results from young
    children, suggests that peoples innate number
    sense may be logarithmic, and they learn linear
    numbers greater than 3 through cultural learning.
  • Much of what we understand about numbers only
    occurs as the result of cultural learning.
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