Memory

Memory

1. Sensory Memory

   • Brief registration of sensation at the level of the peripheral receptor organ
     • Preattentive and sensations rapidly fade making way for new sensations

2. Working Memory

   • information in conscious awareness an the processes active in reception, encoding and retrieving of information
   • ageing functioning particulary executive functions

3. Long Term Memory

   • Declarative: Fact Memory
     • Semantic
       • conceptual knowledge
     • Episodic
       • remember events in our life
       • Most fragile, most affected by age
       • Mid life on deteriorartion in in abilities to recall names, faces and events
     • Lexical
       • Memory for words, referents and meaning, spelling and pornunciation
   • Non declarative
     • Motor Skill
       • procedural memory
       • preserved well, slower performance
     • Cognitive Skills
       • cognitive operations that occur without conscious awareness, mirror-reversed reading
     • Habits
       • Behavioural events in which execution of one behaviour triggers the next behaviour
     • Priming
       • Facilitation of performance as a consequence of previous experience with a stimulus or its associates, it can conceptual or perceptual

4. Normal ageing individuals slow down physically and psychological.

   • Ageing affects the processing and retrieval of information more than the fund of knowledge.
   • Great variability over the age of 65
   • Knowledge of vocabulary and grammar preserved
   • Reported effects of ageing consequence of sensory processing, and psychomotor slowing rather than loss of linguistic knowledge