cep 909 - remember? september 15, 2005. matthew j. koehler september 15, 2005cep 909 - cognition and...

CEP 909 - Remember? CEP 909 - Remember? September 15, 2005September 15, 2005

September 15, 2005September 15, 2005 CEP 909 - Cognition and TechnologyCEP 909 - Cognition and Technology Matthew J. KoehlerMatthew J. Koehler

Is learning about cognition Is learning about cognition like this?like this?


Information Processing ModelInformation Processing Model


PerceptionPerception

Really coolReally cool

Not going to deal with itNot going to deal with it


AttentionAttention




Motor ControlMotor Control




Short-Term Memory aka Short-Term Memory aka Working MemoryWorking Memory

Seems to be Limited CapacitySeems to be Limited Capacity 7 +/- 2 items - Miller7 +/- 2 items - Miller

Increasing storage is done by increasing the Increasing storage is done by increasing the size of an item - called chunking.size of an item - called chunking. E.g. “2 2 4 0” vs. “5 seconds faster than my best E.g. “2 2 4 0” vs. “5 seconds faster than my best

5k (22min, 45 secs)”5k (22min, 45 secs)”

Confirmed by your results?Confirmed by your results?


Short-Term or Working Short-Term or Working MemoryMemory

What can you tell me about it, based upon What can you tell me about it, based upon your (meaning your personal and your your (meaning your personal and your classmates’) experiments this week?classmates’) experiments this week?



Seems to be ModalSeems to be Modal

Roughly corresponding to the sensory storesRoughly corresponding to the sensory stores

Auditory - Articulatory LoopAuditory - Articulatory Loop

Visual - Spatial Sketchpad (Baddley, etc.)Visual - Spatial Sketchpad (Baddley, etc.)

Others?Others?



Seems to be serial (sequential)Seems to be serial (sequential)

Example: tell people to recall as many of the Example: tell people to recall as many of the following as possible: “Quick, 12, Love, hungry, following as possible: “Quick, 12, Love, hungry, Orange, Blue, Desk, 45.3”.Orange, Blue, Desk, 45.3”.

Was “12 in the list?”Was “12 in the list?”

Was 45.3 in the list?Was 45.3 in the list?

The further in the list it is, the longer it takes to The further in the list it is, the longer it takes to answeranswer



Requires “effort” to get information to Long-Term Requires “effort” to get information to Long-Term StorageStorage RehersalRehersal

ProcessingProcessing

AttentionAttention

MnemonicMnemonic

Etc.Etc.

Distractor tasks are often used to prevent long-term Distractor tasks are often used to prevent long-term memory formationmemory formation



It’s fastIt’s fast 100 ms on average to retrieve an item100 ms on average to retrieve an item



It is not one-way It is not one-way from perception from perception to working to working memorymemory E.g. couple, E.g. couple,

lovers, space, lovers, space, brown, datingbrown, dating


Your homework due todayYour homework due today

For each item in the list, we’re going to For each item in the list, we’re going to aggregate our data.aggregate our data.


Lets form some groupsLets form some groups

My plan is to give you a few minutes to let My plan is to give you a few minutes to let you form your own groups. (3 or 4 people)you form your own groups. (3 or 4 people)

Combine that with the breakCombine that with the break

If all goes well, I do not have to help you If all goes well, I do not have to help you make groups.make groups.

See you in 20 minutes.See you in 20 minutes.


Group AssignmentGroup Assignment


Your homeworkYour homework

I will provide feedback for both your I will provide feedback for both your homework assignments so far by Monday.homework assignments so far by Monday.

After that we will grade for real.After that we will grade for real.


Next WeekNext Week

Lets review what’s due for next weekLets review what’s due for next week

cep 909 - remember? september 15, 2005. matthew j. koehler september 15, 2005cep 909 - cognition and...

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