STM & Working Memory 2009 (1)

STM & Working Memory 2009 (1) - Proposed Stages of...

Info icon This preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Proposed Stages of Memory Encoding Storage Retrieval Forgetting From an evolutionary perspective, what might be some of the functions of memory?
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
I. Multistore (or Modal) Model (Atkinson & Shiffrin, 1968) Different properties of each mode/store: Capacity, Duration, Code A. Sensory Memory 1. Capacity : very limited 2. Duration : Iconic Memory : 1/3 second Icon (Neisser, 1967) Sperling (1960) & Partial Report Technique
Image of page 2
--icon masked by another incoming stimulus Echoic Memory : 2-3 seconds Moray (1965) and Darwin, Turvey, & Crowder (1972) used stereoscopic stimuli (3-4 perceived channels) R: M 5 3 L: 2 T F Stereo: X 4 S --Response delays of 0, 1, 2, 3, 4, … seconds --Visual cue to partially report one of the channels --Maximum recall was 5 items; echoic memory lasted 2-4 seconds
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
--Significant advantage of 3 rd item presented to an ear (out of 3) 3. Code : “Modality-specific”—in same mode/form in which information was presented e.g., " suffix effect "-where final items to be remembered are lost--occurs in echoic memory, when items & retrieval cue presented auditorily --Retrieval cue may serve as a mask to obliterate final items of list; does not occur with tone or beep B. Short-Term Memory 1. Capacity Miller’s “Magical Number 7” 7+ 2 items But, type of stimuli influences STM Chunking --De Groot (1965) --S. F., studied by Ericsson, Chase &
Image of page 4
Falloon (1980) B. Later scheme (with spaces indicating levels in the hierarchy): 444 444 333 333 444 333 444 5 [= 80 digits] --Size of chunks matters (Simon) 7 1-syllable words 7 7 2-syllable words 7 7 3-syllable words 6 7 two-word phrases 4 7 8-word sentences 3 2. Duration Brown-Peterson task: 20 seconds; Performance at 7% at 18-seconds Decay vs. Interference ?
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern