COGNITIVE PSYCHOLOGY Kenneth J Malmberg Ph D THE

COGNITIVE PSYCHOLOGY Kenneth J. Malmberg, Ph. D

THE CAPACITY OF SHORT-TERM MEMORY Kenneth J. Malmberg, Ph. D

The Modal Model - Atkinson & Shiffrin (1968) Structures: Invariant properties of memory 1. Sensory Memory: holds all incoming information for seconds or fractions of seconds 2. Short-term Memory (STM): limited capacity, holds information for 15 -30 seconds 3. Long-term Memory (LTM): holds large amount of information perhaps permanently

The Magic Number Miller (1956): The Magical Number Seven Plus or Minus Two Capacity of STM Memory Span What is an item? Chunking

Duration of STM What is the duration of short-term memory? Brown-Peterson Task: A trigram consists of three consonants. E. g. , PLK Retention Interval Filled With a “Distractor Task”

Study Guide 1 True or False? Short-term memory has a limited capacity. True False

Study Guide 1 True or False? Short-term memory has a limited capacity. True False

Study Guide 2 True or False? The performance of the absolute identification illustrates one way to measure the capacity of STM. True False

Study Guide 2 True or False? The performance of the absolute identification illustrates one way to measure the capacity of STM. True False

Study Guide 3 True or False? The absolute identification and the digit span tasks lead to different estimates of the capacity of STM. True False

Study Guide 3 True or False? The absolute identification and the digit span tasks lead to different estimates of the capacity of STM. True False

Study Guide 4 True or False? Miller proposed that one way to enhance the capacity of STM is to practice the digit span task. True False

Study Guide 4 True or False? Miller proposed that one way to enhance the capacity of STM is to practice the digit span task. True False

Study Guide 5 True or False? Information can be held in STM indefinitely as long as that information is attended to. True False

Study Guide 5 True or False? Information can be held in STM indefinitely as long as that information is attended to. True False

You have reached the end of the presentation.