This is defined on a series of graded behavior that includes: – Alertness – Drowsiness – Stupor – Coma
To be conscious the following criteria must be met: – Large areas of the cerebral cortex must be involved. – Other types of neural activity are included, such as motor control. – It is interconnected. Information is retrieved and process from various memories.
Although memory is the storage and retrieval of information, there appears to be no one area of the brain which carries out this function
Memory Memory appears to occur in two phases, short term and long term memory.
Short Term Memory (STM) STM is also known as working memory. The amount of information that can be stored for any one event is limited.
Short Term Memory (STM) The amount of information that can be stored for any one event is limited. For example, one can remember a telephone number but would not be able to remember an entire phone book page. What is life like without a short term memory?
Long Term Memory (LTM) Long term memory is not limited. An entire page of a phone book would be stored here. Information can be forgotten. Memorization vs Learning
Information transfer from the STM to the LTM can be affected by the following factors: – Emotional state: increase awareness – Rehearsal or repetition of material (STUDYING!) – Association: relating new with old – Automatic memory: Subconscious memory
Declarative memory involves learning facts or explicit information such as the muscles of the leg.
Non declarative (Procedural) memory involves less conscious learning such as a skill, playing the piano (procedural), riding a bike (motor) or emotional memory. These usually are not forgotten
Memory storage appears to be associated with the area that needs them. The hippocampus is central in declarative memory while non declarative memory by passes this structure
Molecular Basis of Memory Studies in animals reveal that learning involves the following changes in the brains: – An increase in neuronal mRNA – The dendrites change shape – Unique extracellular proteins form in the synapses – Pre synaptic terminals may increase – More neurotransmitter is released So how does your memory work?