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The Cognitive Level of Analysis

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Title: Introduction to Cognitive Psychology Author: Cognitive Science Last modified by: freemanb2 Created Date: 5/17/2003 11:13:56 PM Document presentation format – PowerPoint PPT presentation

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Title: The Cognitive Level of Analysis


1
The Cognitive Level of Analysis
2
Homework/Brief DIscussion
  • How would you rate your memory? Does this number
    vary from day to day? Morning to evening?

3
12358
4
The Cognitive Level of analysis
  • The human mind is quite sophisticated. It can
    manipulate abstract symbols like words and
    images. These mental representations can refer to
    objects, ideas, and people in the real world
    people use them when they think, make plans,
    imagine, or daydream.
  • You have an idea of how you look somewhere in
    your mind a self-representation. You also have
    ideas about how other people are.

5
The Cognitive Level of analysis
  • Mental representations are organized in
    categories, and the mind contains all sorts of
    mental representations stored in memory.
  • Cognitive schemas pre-stored mental
    representations.
  • Mental representations how we store images and
    ideas in memory.
  • Researchers believe that what we already know
    (cognitive schemas) affects the way we interpret
    events and store knowledge in out memory.

6
What is Cognitive Psychology?
  • Study of mental processes
  • Study of the way in which the brain processes
    information
  • It concerns the way we take in information from
    the outside world, how we make sense of that
    information and what use we make of it.

7
What are mental processes?
  • Definition "the process of thinking" "the
    cognitive operation of remembering" (Stanford,
    2010)
  • Ex. Functions or processes such as perception,
    introspection, memory, creativity, imagination,
    conception, belief, reasoning, volition, and
    emotionin other words, all the different things
    that we can do with our minds.

8
Cognitive PsychologyThe study of mental
representations and processes.
9
Objective 1.1Outline principles that define the
cognitive level of analysisObjective
1.2Explain how principles that define the
cognitive level of analysis may be demonstrated
in research.
  • \

10
Principles that define the cognitive level of
analysis
  • Mental representations and processes guide
    behavior
  • Models of mental processes can be proposed and
    investigated scientifically
  • Cognitive processes are influenced by social and
    cultural factors

11
1. Mental representations and processes guide
behavior
  • Human behavior is determined by a set of mental
    tasks/processes
  • Mental tasks/processes include perception,
    thinking, problem solving, memory, language and
    attention -They are also known as cognitions
  • Cognitive psychologist see these
    cognitions/mental tasks as active systems
  • In between taking in and responding to
    information a number of processes are at work.

12
1. Mental representations and processes guide
behavior
  • Information can be transformed, reduced,
    elaborated, filtered, manipulated, selected,
    organized, stored and retrieved
  • Therefore the human mind is  seen as an active
    system processing information, and cognitive
    psychologists aims to study these processes.

13
1. Mental representations and processes guide
behavior
  • People, like computers, acquire information from
    the environment ( input ).
  • Both people and computers store information and
    retrieve it when applicable to current tasks
  • Both are limited in the amount of information
    they can process at a given time

14
1. Mental representations and processes guide
behavior
  • Both transform information to produce new
    information both return information to the
    environment ( output).
  • This information processing approach can
    demonstrated in research with
  • Models of memory
  • Schema theory (This can be used to assist you
    with objective 1.2).

15
2. Models of mental processes can be proposed and
investigated scientifically
  • Cognitive processes are difficult to study. They
    often occur rapidly, and inside the mind so they
    cannot be observed directly.
  • It is only the responses that participants make
    when given some cognitive task to perform that
    can tell us about cognitive processes.
  • These tasks usually take place under tightly
    controlled lab experiments where the main aim is
    to isolate a particular component of the
    cognitive process for the study. (This can be
    used to assist you with objective 1.2)

16
2. Models of mental processes can be proposed and
investigated scientifically
  • Example The stroop effect
  • One of the earliest and most famous experiments
    into cognitive processes is the Stroop Effect.
  • The stroop effect is a phenomena involved in
    attentional processes.

17
The stroop effect
  • It demonstrates the effects of interference,
    processing speed (reaction time) and automaticity
    in divided attention.
  • The effect is named after John Ridley Stroop who
    first published the effect in English in 1935.

18
Stroop effect
  • This is a classic laboratory experiment that
    involves the manipulation of an independent
    variable (color or name of word ) to see what
    effect it has on the dependent variable (
    reaction time).
  • It attempts to control the influence of all
    other extraneous variables such as other
    cognitive processes or skills.
  • It also allows us to establish a cause and
    effect relationship between task and mental
    process.

19
2. Models of mental processes can be proposed and
investigated scientifically
  • A further example of the laboratory experiment
    was conducted by Ebbinghaus (1885).
  • His experiment intended to isolate the process of
    pure memory and show that it could be studied
    scientifically under carefully controlled
    conditions.

20
2. Models of mental processes can be proposed and
investigated scientifically
  • The aim of the study was to assess short term
    memory, i.e. how quickly a person forgets what
    has been learned 100.
  • He used himself in most of the studies , i.e. the
    design was N1 and he tested his memory using
    nonsense syllables.
  • Learned lists of nonsense syllables (e.g., DAX,
    QEH)
  • Why nonsense syllables?
  • He did not want actual words to influence his
    ability to memorize or recall certain words
  • He manipulated the independent variable of time
    delay before recall to find the effect on the
    dependent variable of the amount of information
    retained thus being able eventually to draw the
    famous forgetting curve.

21
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22
Principle 3Cognitive processes are influenced
by social and cultural factors
  • In other words Language, perception, schemas,
    etc. can be influenced by our culture. How so?
  • This principle may b e demonstrated in research
    that looks at social and cultural influences on
    cognitive processes. Such as schemas
  • Examples
  • a. Frederic Bartlett, coined the term schema,
    which is a mental representation of knowledge.

23
Principle 3Cognitive processes are influenced
by social and cultural factors
  • Schema is defined as a mental representation of
    knowledge, its an internal depiction of the
    world. He was predominantly fascinated how
    cultural schemas influence ones recollection.
  • A info on Barletts study
  • http//myclass.peelschools.org/sec/11/20135/Lesson
    s/Period204/Cognitive20Level20of20Analysis/Bar
    tlett,20Schema20Theory,20Reconstructive20Memor
    y,20Serial20Reproduction,20Native20American20
    Legend,20War20of20the20Ghosts.pdf

24
Objective 1.2 important notes
  • In your response, you must
  • Show an objective way that the principle can be
    studied
  • Provide a research example of a study that
    demonstrates the principle
  • Show how the specific study demonstrates the
    principle.
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