PSYC 301L Lecture Notes - Lecture 9: Long-Term Memory, Semantic Memory, Episodic Memory

33 views2 pages
8 Feb 2017

For unlimited access to Class Notes, a Class+ subscription is required.

Lecture 9
Memory is always active
o Encoding, storing, and retrieving information
Memory is the past affecting the present and future
Encoding- converting information to a useable form for storage
Sensory memory- first stage of memory, storing an exact copy of incoming information
for <1 second
o Everything comes in
o Large capacity, short duration
Short term memory- 2nd stage of memory, stores small amounts of information briefly
o Sensitive to interruption and interference
o Limited to holding 7 (+ or 2) items of information at once
Long term memory- stores information relatively permanently
o Unlimited capacity
o Explicit (declarative) memory- factual knowledge and personal experiences
Semantic memory- impersonal factual knowledge and personal
Episodic memory- personal experiences linked with specific times and
Atkinson and Shiffrin’s modal model of memory:
o 3 parts:
sensory memory
short term memory
long term memory
o when information is retrieved from long term memory, it goes back to short term
Control processes- active processes that can be controlled by a person
o Maintenance rehearsal
o Strategies to make things more memorable
o Strategies to help you focus
Measuring capacity/duration of sensory memory
o Whole report method vs. partial report method vs. delayed partial report condition
o Whole report: 4.5/12 letters
o Partial report: 3.3/4 letters
o Delayed partial report: ¼ letters
Sensory memory has a large capacity but fast decay
Chunking can expand short term memory capacity
o Break down into meaningful pieces
Brown/Peterson and Peterson (simultaneous studies)
o Recall letters after counting backwards by 3 from a number for 3-18 seconds
o At 3 seconds, almost the same
o Longer delay causes more forgetting
o People got worse the longer it went on
Proactive/retroactive interference
Change detection is a better measure of capacity than digit span
Change detection can improve with practice
find more resources at
find more resources at
Unlock document

This preview shows half of the first page of the document.
Unlock all 2 pages and 3 million more documents.

Already have an account? Log in

Get access

$10 USD/m
Billed $120 USD annually
Homework Help
Class Notes
Textbook Notes
40 Verified Answers
Study Guides
1 Booster Class
$8 USD/m
Billed $96 USD annually
Homework Help
Class Notes
Textbook Notes
30 Verified Answers
Study Guides
1 Booster Class