Psychology 127: Lecture 1
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Psychology 127: Lecture 1. Housework On-line error w/ section times. ** Cogsci had wrong time listed on Friday but it has been fixed. Class Adds: Via Waitlist (details at end of class). Must be opening in section. Openings mainly in Friday 10 and Friday 2 sections.

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Housework

On-line error w/ section times.

** Cogsci had wrong time listed on Friday but it has been fixed.

Class Adds:

Via Waitlist (details at end of class).

Must be opening in section.

Openings mainly in Friday 10 and Friday 2 sections.

Prereqs and overlap with other courses

Recommend one of Psych 110, 120, Cogsci 1, 100

Relationship to MCB 61: Mind, Brain, and Behavior

Too much overlap with Psych 117: Human Dysfunction

Exam conflict w/ 120 and 126 is minimal!


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Housework

Lecture notes: http://socrates.berkeley.edu/~ivrylab/psych127_2008

Before class posted w/ filename+preview

After class re-posted in final form.

Sections:

NO Sections this week.

For next week: Prepare Reader #1

Posted on website.

Attendance is required!


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Housework

Syllabus

Posted on website

Show on screen


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Housework

CognAC RA's needed!

See Ivry lab website for description and application.

http://ist-socrates.berkeley.edu/~ivrylab/

(or just google me and first link is it)


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Cognitive Neuroscience: The Biology of the Mind

  • Integration of (at least) four disciplines:

  • Neurology: Function and pathology of the nervous system

  • Neuroscience: Mechanisms of the nervous system

    • Includes

    • neuroanatomy

    • neurophysiology

    • neurochemistry

  • Cognitive psychology: How the mind processes information

  • Computer science/Artificial intelligence:

  • How can computers perform tasks

  • Can we simulate mental behavior from neural-like models.


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Behavioral Neurology

  • Emphasis on linking brain parts to different tasks

  • e.g., language and the left hemisphere

  • coordination and the basal ganglia


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Diagram Making

(Early Behavioral Neurology)


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Behavioral Neurology

  • Emphasis on linking brain parts to different tasks

  • Important for clinical evaluation and treatment

  • Predicting recovery from language problems after a stroke.

  • Prescribing medication for elderly person who shows onset of coordination problems.


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Behavioral Neurology

Task-based analysis is limited for explaining normal mental activity.

What do we learn about language from knowledge that left hemisphere is more important than right hemisphere for speech comprehension and production?

Or, given knowledge about pathology in Parkinson’s disease, how the basal ganglia contribute to motor control?


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Cognitive Psychology

  • Provide detailed analysis of how information is processed when we perform a complex task


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Read words out loud

as fast as you can.

Ready?


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Game

Trip

Ball

Table

Elephant


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List 1

Ready?


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Fail

Couch

Hose

Cave

Freak

Read

Home


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List 2

Ready?


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Phone

Touch

Lose

Have

Steak

Head

Some



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Have

Some

Touch

Phone

Lose

Steak

Head



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Read

Hose

Cave

Fail

Couch

Home

Freak


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Hypothetical Results

List 1 List 2

Fail Phone

Couch Touch

Hose Lose

Cave Have

Freak Steak

Read Head

Home Some


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Hypothetical Results

List 1 List 2

Fail Phone

Couch Touch

Hose Lose

Cave Have

Freak Steak

Read Head

Home Some

Why the difference???


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Cognitive Psychology

  • Provide detailed analysis of how information is processed when we perform a complex task

  • Does reading involve a conversion of visual information to phonological (auditory-based) representations?

  • Or are skilled readers able to directly process the entire word?


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Cognitive Psychology

  • Provide detailed analysis of how information is processed when we perform a complex task

  • Does reading involve a conversion of visual information to phonological (auditory-based) representations?

  • Or are skilled readers able to directly process the entire word?

  • Cognitive models can be proposed without considering biological issues



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Cognitive neuroscience

Interdisciplinary effort to relate mental processes to brain structures.

Interaction is bidirectional

Specify functions of different brain structures:

Example: What can we learn about brain function by using language tasks?

What neural areas are important for converting visual words into phonological (sound) representations.


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Cognitive neuroscience

Interdisciplinary effort to relate mental processes to brain structures.

Interaction is bidirectional

Specify functions of different brain structures.

Develop models of cognition.

Example: What can we learn about language by studying how communication skills change following brain damage or by observing physiological activity in the brains of healthy people when performing language tasks?


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Models lead to predictions:

Suppose we know where the letter to sound translation process is located (from a brain imaging study). If a person has a stroke that destroys that area, what kind of reading problems might we expect?


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Models lead to predictions:

Damage to letter-sound conversion should not affect ability to read both regular and irregular words. But there should be a big problem with nonsense word-like letter strings.

CAN CAN’T

cave cive

have hove

ghost gote

pulley lutpig


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Emergence and development of cognitive neuroscience is method driven.

New technologies to image the nervous system

polysynaptic tracers: cellular

fMRI, DTI : systems

New technologies to manipulate the nervous system

Genetic knock-outs

TMS

First set of lectures will review these methods.