Cognition Flashcards
Memory
Capacity to register, store and recover information over time
Cognition
The mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.
Name some factors that may affect memory
our attention, age, diseases, state of consciousness, alcohol NEED TO MAKE IT MEANINGFUL
State the three main basic steps to creating memories
Encoding, storage, and retrieval.
encoding
When sensory information first enters into our memory system, it needs to be changed into a form that the system can work with and store.
Acoustic encoding, Visual encoding and Semantic encoding
Acoustic: the encoding of sounds
Visual: the encoding of images
Semantic: the encoding of meaning “WORDS”
Where do we store information (memories) within the brain (Karl Lashley and Wilder Penfield)?
Karl Lashley and Wilder Penfield(neurologists, 1950-1960s) determined that long-term memories are stored throughout the brain. After consolidation, LTMs are stored throughout the brain as groups of neurons that fire together in the same pattern that created the original experience, and each component of a memory is stored in the brain area that initiated it. EX: groups of neurons in the visual cortex store a sight, neurons in the amygdala store the associated emotion, etc).
Define the term retrieval (recall and recognition)
Recall- LTM, “digging for information”
Recognition- occurs almost immediately
Where do we retrieve information from?
LONG TERM MEMORY
Explain each of the subgroups of long-term memories.
Explicit Memory: The conscious, intentional recollection of previous experiences and information. OTHER SUBCATEGORIES-Episodic: a specific event we are present for Semantic: General world knowledge, facts
Implicit Memory: Things that we don’t purposely try to remember are stored in implicit memory. This kind of memory is both unconscious and unintentional. It is also known as nondeclarative memory, since you are not able to consciously bring it into awareness. CATEGORY OF IMPLICIT-Procedural: These types of memories allow us to perform specific tasks like tying our shoes, swinging a baseball bat or making toast, we do not have to consciously recall how to perform these tasks. (SKILLS/TASKS)
Explain the Atkinson-Shiffrin three stage model of memory.
Sensory memory, Short-term memory (STM), Long-term memory (LTM)
Levels of processing level
How long and how well we remember information depends on how deeply we process the information when it is encoded. Depth refers to the attention, focus, elaboration, and emphasis on a particular memory.
Shallow processing
Encoding on a basic level based on the structure of appearance. Shallow processing usually only results in the short term retention of the information, Little attention to meaning. “MAINTENANCE REHEARSAL” EX: FLASHCARDS
Deep Processing
Occurs when we attach meaning to information and create associations between the new memory and existing memories. “ELABORATIVE REHEARSAL”
Explain the transfer appropriate processing model.
Memory performance is better when the cognitive processes engaged during retrieval (LTM)match the cognitive processes that were engaged when the material was encoded.
Define the Parallel distributed processing model. Give an example.
Parallel processing allows people to make such observations quickly, rather than analyzing each part of the object or situation separately. For example, when a person looks at a firetruck, they will see the red color, fire hose, and logo all at once to quickly recognize it for what it is.
Explain sensory memory.
Is a mental representation of how environmental events look, sound, feel, smell and taste. It includes a long-term component useful for such activities as recognizing a color or a familiar voice. However, most vivid details of sensory memory seem to fade quickly.
Sensory memory
Duration: less than one second. Capacity: tremendous amount of space
Short term memory (STM)
Duration: 18-30 seconds. Capacity: 7+-2, MAGIC NUMBER
Long term memory (LTM)
LTM- Duration- lifetime. Capacity- “unlimited”
Elaborative Rehearsal
involves thinking about how new material relates to already known information. This requires thinking about semantic codes, which is much more effective in forming lasting memories.
Maintenance rehearsal
simply repeating information over and over without thinking about it,or making it meaningful is not very effective in forming lasting memories.
Chunking(effective)
Process of taking individual pieces of information (chunks) and grouping them into larger units. EX: PHONE NUMBERS
Dual Coding Theory
Suggests that human cognition is divided into two processing systems: visual and verbal. The visual system deals with graphical information processing and the verbal system deals with linguistic processing. These two systems are separate and are activated by different information.
In terms of the Serial position effect, explain recall in terms of the primacy and recency effect
Items found at the end of the list that are learned most recently are recalled best (the recency effect), while the first few items are also recalled better than those found in the middle (the primacy effect).
Anterograde Amnesia
Occurs when a person experiences the full or partial loss of memory, injury or trauma can create problems with various brain functions
Retrograde Amnesia
Cannot remember things that happened before the event that caused their amnesia. RETRO=THE PAST
Define retrieval (memory) cues.
Retrieval cues prime our memories. Priming is activating specific associations in memory either consciously or unconsciously
Encoding Specificity Principle
memories are linked to the context in which they are created. It states that it’s easier to recall information when you are in the same context in which you memorized or studied it