PSYC 2145 Lecture Notes - Lecture 11: Sensory Memory, Memory Span, Interference Theory
Document Summary
You see all 12 letters are you"re supposed to try and report the entire thing. On average people could only recall about 4 letters. Accuracy limited by time required to report numbers. High, low, or medium frequency tone that tells you which of the 3 rows of stimuli to report. Whatever row people were told to recall, they were able to recall about 3. 3 letters per row (out of 4). Most visual info is immediately available, but quickly decays over time (lasts ~ 1 second). Stimulus is shown for about less than half a second so the viewer is not able to rehearse. Almost all visual information is automatically retained for a brief period of time (e. g. , sperling). Fleeting not as fleeting as sensory memory. Clive wearing and h. m. impaired ltm, ok stm. Normal capacity is about 7 +/- 2 items (less if rehearsal is prevented) Changing the mental format or representation of information.
