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INFORMATION VISUAL – “ICONIC” AUDITORY – “ECHOIC” SENSORY MEMORY VERY LARGE CAPACITY INFO STAYS FOR.5 – 2 SECONDS MOST PEOPLE HOLD 3 -5 ITEMS (SPERLING’S.

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Presentation on theme: "INFORMATION VISUAL – “ICONIC” AUDITORY – “ECHOIC” SENSORY MEMORY VERY LARGE CAPACITY INFO STAYS FOR.5 – 2 SECONDS MOST PEOPLE HOLD 3 -5 ITEMS (SPERLING’S."— Presentation transcript:

1 INFORMATION VISUAL – “ICONIC” AUDITORY – “ECHOIC” SENSORY MEMORY VERY LARGE CAPACITY INFO STAYS FOR.5 – 2 SECONDS MOST PEOPLE HOLD 3 -5 ITEMS (SPERLING’S EXPERIMENT) FORGETTING TOO MUCH INFO NO ATTENTION TO INFO INFO THAT WE PAY ATTENTION TO SHORT TERM (WORKING) MEMORY CAPACITY IN VISUAL SERIES VARIES: 3-5 MOST CAN RETAIN 7 50% CAN RETAIN 9-11 VERY FEW CAN RETAIN (GEORGE MILLER RULE = 7 +/- 2) CAPACITY FOR “CHUNKS” (MEANINGFUL UNITS) IS AROUND 7 HOLDS INFO FOR 15 – 20 SECONDS (ROTE REHEARSAL ALLOWS INFO TO STAY LONGER IN SHORT TERM) FORGETTING

2 SHORT TERM MEMORY ELABORATE REHEARSAL RETRIEVAL ROTE (MAINTENANCE) REHEARSAL LONG TERM MEMORY UNLIMITED CAPACITY? UNLIMITED DURATION? TYPES OF LONG TERM MEMORY: PROCEDURAL (SKILLS) DECLARATIVE EPISODIC DETAILED MEMORY OF EVENTS AND SITUATIONS IN ORDER SEMANTIC IDEAS, RULES, WORDS, CONCEPTS FORGETTING???

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4 RECALL - RETRIEVAL OF PREVIOUSLY PRESENTED INFORMATION - JEOPARDY – QUESTION/ANSWER RECOGNITION - RECOGNITION OF THE CORRECT INFORMATION FROM A SET - WHO WANTS TO BE A MILLIONAIRE

5 STATE-DEPENDENT LEARNING AND RETRIEVAL - INFORMATION LEARNED WHILE A PERSON IS IN A PARTICULAR STATE IS RECALLED MOST ACCURATELY WHEN THE PERSON IS AGAIN IN THAT STATE

6 FLASHBULB MEMORY - THEORY THAT THERE IS A SPECIAL TYPE OF MEMORY FOR EVENTS THAT HAVE A CRITICAL LEVEL OF EMOTIONAL IMPACT - RESEARCH SHOWS THAT “FLASHBULB MEMORIES” ARE NOT PERFECTLY ACCURATE AND CHANGE OVER TIME

7 FORGETTING CURVE - 1 ST 20 MINUTES MOST LOSE 50% OF INFORMATION LEARNED - INCREMENTS OF MEMORY LOSS FOLLOWING THIS IS A SLOW PROCESS (“FORGETTING CURVE”)

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9 MEMORIES ARE USUALLY CONSTRUCTED (MEMORY = RECONSTRUCTION OF INFORMATION NOT REPLAY) - LEVELING – SHORTENING AND SIMPLIFICATION OF DETAILS -SHARPENING – FOCUSING OR EMPHASIZING CERTAIN DETAILS - ASSIMILATION – MAKING STORIES THAT FIT OUR OWN SETS OF VIEWS OF THE WORLD

10 “SINS OF MEMORY” - NEGATIVE AFFECTS ON BOTH SHORT-TERM AND LONG-TERM MEMORY DECAY -LOSS OF INFORMATION AS A RESULT OF DISUSE AND PASSAGE OF TIME

11 INTERFERENCE -SUPPRESSION OF ONE BIT OF INFORMATION BY ANOTHER o PROACTIVE INTERFERENCE – DECREASE IN ACCURATE RECALL OF INFORMATION AS A RESULT OF PREVIOUSLY LEARNED INFORMATION o RETROACTIVE INFORMATION – DECREASE IN ACCURATE RECALL OF INFORMATION AS A RESULT OF SUBSEQUENT PRESENTATION OF INFORMATION

12 MOTIVATED FORGETTING FRIGHTENING AND/OR TRAUMATIC EVENTS MIGHT BE FORGOTTEN DONE THROUGH THE PROCESS OF REPRESSION

13 EYEWITNESS TESTIMONY * MISINFORMATION EFFECT - SOME EYEWITNESSES CAN BE INFLUENCED BY THE WORDING OF THE QUESTIONING * MEMORY ENHANCEMENT - PEOPLE CAN TAKE HAZY MEMORIES AND FIT THEM INTO A COHERENT PATTERN THAT SEEMS REALISTIC AND LIKELY - CONFIDENCE USUALLY GROWS WHEN ONE IS WRONG

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