Week 11: Cognition Flashcards
Memory
At least 3 different types of memory have been identified (working, declarative, and procedural)
1. Working: Goal-relevant information for a short time
2. Declarative: Facts, events, concepts, and locations
3. Procedural: Skilled movements and habits
Consciousness
Waking and sleeping, paying attention, and initiating action are the province of the consciousness system. Various aspects require different subsystems.
Seretonin
Widely distributed throughout the cerebrum and modulates general arousal levels
Norepinephrine
Contributes to attention and vigilance via locus corelus projections primarily sensory areas
Acetylcholine
Contributes to voluntary direction of attention toward an object
Dopamine
Contributes to the initiation of motor or cognitive actions, based on cognitive activity
Oriented attention
The ability to locate specific sensory information from among many stimuli (locating the traffic light while driving)
Divided attention
The ability to attend to two or more things simultaneously (adjusting cars speed according to anticipated trajectory of other vehicles while talking with a passenger)
Selective attention
The ability to attend to important information and ignore distractions (listening only to the person you are have a conversation with in a cafe with numerous other conversations proceeding at the same time)
Sustained attention
The ability to continue an activity over time (reading a book, driving a car, having a conversation, and building furniture)
Switching attention
The ability to change from one task to another (when making half of a recipe, it is easy to mistake the conversion while attending to the process of measuring and mixing thus end up with the amount of salt for a full recipe rather than half the recipe)
Intellect
The ability to form concepts and to reason
ADHD
Difficulty sustaining attention with onset during childhood. Display developmentally inappropriate inattention and impulsiveness.
Dementia
Generalized mental deterioration, characterized by disorientation and impaired memory, judgement and intellect
Alzheimer’s
Causes progress mental deterioration consisting of memory loss, confusion, and disorientation. Typically symptoms become apparent after age 60. It initially presents with signs of forgetfulness, progressing to an inability to recall words, and finally failure to produce and comprehend language.