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Forgetting

Friday 6th October ‘23

Forgetting isn’t due to memory not existing but more to do with not being able to access/locate them correctly.

  • Interference - when one memory blocks another, causing one or both to be either distorted or forgotten.

    • Proactive - older memory interferes with newer memory.

    • Retroactive - newer memory interferes with older memory.

  • Retrieval failure - memory is available but not accessible without a certain cue.

    • Encoding specific principle - cue needs to be present at time of encoding and time of retrieval to be helpful e.g. mnemonics.

    • Context dependent forgetting - recall depends on an external cue e.g weather or place.

    • State dependent forgetting - recall depends on an internal cue e.g. feeling/emotions.

Studies for Interference

  • Greenberg + Underwood

    • Procedure: Participants were given a list of 10-word pairs to learn. Every 48 hours, they were given a new list.

    • Findings: the number of correctly recalled word pairs decreased with the more word pairs that had been learnt previously.

    • Suggestions: previously learnt word combinations caused confusion in the coding of the later word lists (proactive interference).

  • Schmidt

    • Procedure: Sent a questionnaire to 211 11-79 year olds which included the area around their old school without street names.

    • Findings: the more times an individual moved home, the fewer street names could be recalled.

    • Suggestions: Adding new street names to memory makes recalling old street names harder (retroactive interference).

Studies for Absence of Cues

  • Godden + Baddeley

    • Procedure: material was learnt either underwater or on land and recalled either underwater and on land.

    • Findings: recall was best with divers if they learnt in the same context as they were tested.

    • Suggestions: environmental cues promote recall,

  • Overton

    • Procedure: material was learnt either drunk or sober.

    • Findings: recall was best when in the same internal state.

    • Suggestions: internal cues promote recalls.

Forgetting

Friday 6th October ‘23

Forgetting isn’t due to memory not existing but more to do with not being able to access/locate them correctly.

  • Interference - when one memory blocks another, causing one or both to be either distorted or forgotten.

    • Proactive - older memory interferes with newer memory.

    • Retroactive - newer memory interferes with older memory.

  • Retrieval failure - memory is available but not accessible without a certain cue.

    • Encoding specific principle - cue needs to be present at time of encoding and time of retrieval to be helpful e.g. mnemonics.

    • Context dependent forgetting - recall depends on an external cue e.g weather or place.

    • State dependent forgetting - recall depends on an internal cue e.g. feeling/emotions.

Studies for Interference

  • Greenberg + Underwood

    • Procedure: Participants were given a list of 10-word pairs to learn. Every 48 hours, they were given a new list.

    • Findings: the number of correctly recalled word pairs decreased with the more word pairs that had been learnt previously.

    • Suggestions: previously learnt word combinations caused confusion in the coding of the later word lists (proactive interference).

  • Schmidt

    • Procedure: Sent a questionnaire to 211 11-79 year olds which included the area around their old school without street names.

    • Findings: the more times an individual moved home, the fewer street names could be recalled.

    • Suggestions: Adding new street names to memory makes recalling old street names harder (retroactive interference).

Studies for Absence of Cues

  • Godden + Baddeley

    • Procedure: material was learnt either underwater or on land and recalled either underwater and on land.

    • Findings: recall was best with divers if they learnt in the same context as they were tested.

    • Suggestions: environmental cues promote recall,

  • Overton

    • Procedure: material was learnt either drunk or sober.

    • Findings: recall was best when in the same internal state.

    • Suggestions: internal cues promote recalls.