Final Flashcards
The outcome of learning is…
Memory!
What are the 3 processing stages?
Encoding: step 1: acquisition 2: consolidation
Storage
Retrieval
What happens during the Encoding stage?
Aquisition and Consolidation
T/F: key to memory is hippocampus which is interconnected with many structures particularly wide regions of the cortex and amygdala
True
T/F: How much of medial temporal lobe was lost = degree of amnesia
True
T/F: Loss of bilateral hippocampus = light amnesia
False. Loss of bilateral hippocampus = severe amnesia
What’s the point of this? HM - temp lobe and hippocampus detached. He can remember everything up to 2 years prior to surgery. He retained normal short term memory and working memory and procedural memory but could not process new long term memory
Memory is it’s own function, separate from perception and intellect. Can still learn new motor, procedural and perceptual skills but can’t remember how
T/F: Memory is part of perception and intellect.
False. Memory is it’s own function
T/F: If Temp Lobe and Hippocampus is detached, you can’t learn new motor or procedural skills.
False. Can still learn new motor, procedural and perceptual skills just can’t remember how.
Name 4 types of memory
Sensory memory
Short term memory
Working memory
Long term memory
Shortest term of memory includes echoic (hearing) and iconic (vision) memory
Sensory Memory
Indeed, it lasts for such a short time that it is often considered part of the process of perception, but it nevertheless represents an essential step for storing information in short-term memory.
Sensory Memory
Combination of ability to retain info over short term (maintenance) and perform mental operations of stored material (manipulation)
Working Memory
Baddeley and Hitch propose the phonological loop, visuospatial sketchpad, and central executive
Working Memory
Declarative and Nondeclaritive are what kinds of memory?
Long Term Memory
Episode and Semantic memory are part of what kind of memory?
Declarative Memory
Memory for events and facts we have conscious access to and can be verbally reported. Broken down into episodic and semantic memory (knowing what). This memory system is the system of memory that is perhaps the most familiar.
Declarative
A fact like ‘Paris is the capital of France’, or an event like a prior vacation to Paris is an example of what kind of memory?
Declarative
Those of personal experiences (think of self as agent) begins age 13 months. memory of autobiographical events (times, places, associated emotions, and other contextual who, what, when, where, why knowledge) that can be explicitly stated. It is the collection of past personal experiences that occurred at a particular time and place.
Episodic Memory (part of declarative LTM)
Objective knowledge that is factual in nature; retained but context of learning lost, won’t remember precise moment of learning, refers to a portion of long-term memory that processes ideas and concepts that are not drawn from personal experience. Includes things that are common knowledge, such as the names of colors, the sounds of letters, the capitals of countries and other basic facts acquired over a lifetime.
Semantic Memory (part of declarative LTM)
implicit memory, ex. Priming, habituation, sensitization, procedural memory, learning a motor or cognitive skill and not dependent on medial temporal lobe (knowing how) They include the memories for skills and habits (e.g., riding a bicycle, driving a car, playing golf or tennis or a piano),
Nondeclarative Memory
What part of brain plays key role in procedural memory?
the basal ganglia (KEY!), cerebellum, amygdala, and neocortex.
What model is this? They are: sensory register, short-term memory (STM), and long-term memory (LTM). This model of memory assumes that the processes of moving information from the sensory store to short-term and then long-term memory takes place in discrete stages.
At each stage info may be lost by decay or interference (new info takes its place). Conflict as to how much overlap between short and long term memory systems; double dissociation is questionable
Modal Model
T/F: Basal Ganglia is critical to formation of new LTM
False. Hippocampus is critical to formation of new LTM
(caused by physical exertion in men, emotional stress in women over 50) can cause sudden transient anterograde amnesia and retrograde amnesia spanning weeks to years and may continually ask “Why am I here” (intense amnesia) - “There he is!” Simple orientation became procedural memory.
Transient ischemia/Transient global amnesia (has to do with Medial Temporal Lobe system)
T/F: Hippocampus (can’t process new memories) deteriorates rapidly in those with Alzheimer Disease, those with a thicker hippocampus develop dementia at lesser extent (endurance exercise good for this)
True!
T/F: Those with a thicker hippocampus develop dementia at lesser extent (endurance exercise good for this)
True
What part of brain key for emotional memory?
Amygdala
What part of brain key to encoding and retrieval for episode memory?
Hippocampus
T/F: perirhinal cortex stores contextual info while Parahippocampal cortex stores specific items. FMRI studies showed activation only when correct items retrieved
False. parahippocampal cortex stores contextual info while perirhinal cortex stores specific items. FMRI studies showed activation only when correct items retrieved
Episodic info that leads to recollection experiences is …
Relational Memory. During retrieval, same brain regions activated during perception of pictures reactivated, same for sounds
What part of brain key to relational memory?
Hippocampus. Processes all manner of associations and sequences of events that comprise our daily lives, linking these into relational frameworks. According to this perspective, the hippocampus mediates large-scale relational frameworks for, among others, family trees and city layouts, which allow us to make novel detours through our city or make inferences about the relationships between members of our family.
T/F: R frontal cortex involved in encoding; L frontal cortex involved in retrieval
False. L frontal cortex involved in encoding; R frontal cortex involved in retrieval (remember the 2 R’s)
T/F: Semantic coding and retrieval both on the L side (Broca’s)
True
T/F: Parietal cortex key role in attentioal role in memory unclear
True
T/F: Damage to medial temporal lobe (primarily hippocampus) and related structures impedes formation of new declarative memories (anterograde amnesia)
True
What stabilizes memory over time?
Consolidation
What theory is this? (episodic and semantic) memories initially depend on the hippocampus, but eventually become consolidated in their original forms in other brain regions. Memories consolidated through some sort of interaction between medial temporal lobe and the neocortex, but with time, bound info is slowly transferred and replaced by permanent memory trace in neocortex
Standard Consolidation Theory
What theory is this? Posits that with each retrieval a hippocampal trace is left solidifying memory
Memories stored as distributed representations throughout the neorcortex. Argues that the hippocampus is always involved in the retrieval and storage of episodic memories
Multiple trace theory. Findings indicate that the standard model of memory consolidation, which views the hippocampus as having only a temporary role in memory, is wrong. Instead, the data support the view that for episodic and spatial detail the hippocampal system is always necessary.
What theory is this? Memories are encoded in hippocampal–cortical networks, Memory reactivation leads to the generation of multiple traces in the hippocampus, which are linked to cortical networks, Traces in the hippocampus provide spatial and temporal context, Traces in the cortex are context-free (or semantic) in nature, Retrieval of contextually rich episodic memories always depends on hippocampal–cortical networks, Retrieval of remote semantic memories is possible in the absence of a functional hippocampus.
Multiple Trace Theory. Predicts that reactivation should also lead to the generation of new traces within the hippocampus
T/F: Small quantities of cortisol aids learning but chronic stress is detrimental to cognition and memory so chronic is bad on memory
True
These neurons appear to be “replaying” the learned tasks during sleep
Place cells
What is crucial to consolidation memory but grad students don’t get enough of?
Sleep
According to this approach, working memory is a system with several different parts that control the information being processed. This led to the development of new model… This model assumes that each component has a limited capacity and is relatively, not entirely, independent of the others. Baddeley’s original model contained three components, the phonological loop, the visuo-spatial sketchpad, and the central executive. However, the current model also contains the episodic buffer.
Allan Baddeley’s Model of Working Memory.
Processes sounds and is responsible for speech based information. This includes sounds that are processed in one’s mind.
Phonological loop
Responsible for processing visual and spatial information. It can be fed either directly, through perception, or indirectly, through a visual image. Allows people to store images of objects and their locations. When a person goes from one location to another, this is stimulated. It is also activated in various activities such as puzzles, mazes, and games.
visuo-spatial sketchpad
incorporates information from the phonological loop, the visuo-spatial sketchpad, the episodic buffer, and from long-term memory.
Central executive
was not a part of Baddley’s original model. It was added to the model 25 years later. It is seen as a place to temporarily integrate information gathered from the phonological loop, visuo-spatial sketchpad, and long-term memory.
Episodic Buffer
T/F: Even in short term, there are elements of both memory systems at play
True
T/F: Immediate recall involves both STM and LTM components with either phonologic or semantic coding
True
storage system: short term (undemanding material, good for rapid, attentionally undemanding verbal material, effective in serial order)
Phonological STM
storage system: long term (coding rapid for meaningful sequences, harder to use unrelated words)
Semantic Base
What are three assumptions that led to original WM Model?
#1 - assumed holding in STM guaranteed to transfer to LTM #2- Believed that STM essential to LTM #3 - STM believed to be part of WM, so poor STM= poor cognition These 3 assumptions led to the first model.
What was the original WM model like?
Original WM model abandoned assumption that WM is a single unitary store consisting of visuospatial sketch pad, central executive, and phonological loop. Used Shallice attention model that action is controlled in 2 ways
1) Based on well learned habits requiring little attentional demand (System 1)
2) Supervisory attentional system (system 2)
4 primary functions of what?
1) need to be able to focus attention
2) be able to divide attention between 2 important stimulus streams
3) Must be able to switch between tasks
4) Must have capacity to interface with LTM (capacity for 15 words) No strict division from ST AND LTM, there are both things used during task.
Central Executive part of WM model
“Act as a buffer store, not only between components of WM but also linking Wm to perception and LTM”, depends heavily on the central executive
Episodic Buffer
T/F: Feelings are rooted in events occurring at single-cell level, specifically in the myelinated axons
False. Feelings are rooted in events occurring at single-cell level, specifically in the unmyelinated axons
What is this? Thirst, food and air hunger (the urge to breathe), different kinds of pleasure and pain, disgust, fear, sadness and joy, as well as complex social responses such as contempt, shame, compassion, admiration
Feelings
What is action programme responsible for?
Emotions and drives
T/F: Five senses cause emotions and ensuing feelings but not feelings themselves
True
What describes a state of the body in which the condition of viscera (heart, lungs, gut, skin) has key role
Feelings
T/F: felt experiences permit more flexible and effective corrective measures than neural mapping alone, especially in the realm of complex behavior
True
A set of innate/instinctual physiological actions triggered by changes in the internal or external environments and aimed at maintaining or restoring homeostatic balance
Action programmes
What is considered subjective and individual, it is now involved in much of the cognitive processing, influences attention and decision making, bias behavior and actions.
Emotion
Action programmes triggered by external stimuli (perceived or recalled) include disgust, fear, anger, sadness, joy, shame, contempt, pride, compassion, admiration. Most agree there’s a phsysiological response too
Emotion
action programme aimed at satisfying basic instinctual physiological needs (hunger, thirst, libido, play, care of progeny and attachment to mates)
Drive
T/F: emotions are objective and general
False. Emotions are subjective and individual
Emotions are involved in which processes?
Emotions are involved in cognitive processing, attention and decision making, bias behavior and actions
What is the definition of emotions?
Emotions: Action programs largely triggered by external stimuli (perceived or recalled). Examples include disgust, fear, anger, sadness, exploration and play, care of progeny, and attachment to mates.
Most agree it involves a physiological response, a behavioral response, and a feeling
T/F: the orbitofrontal cortex (OFC) is a prefrontal cortex region in the frontal lobes in the brain which is involved in cognitive processing of decision making
True
T/F: The limbic system has a large impact on the neural basis of emotions.
True. The orbitofrontal cortex and the amygdala involved in the limbic system have been a long time focus of the neural basis of emotion
T/F: The neural systems involved in emotion are very specific, individualized regions.
False. It is a complex interconnected network with different systems processing different emotions
What are the three primary categories of emotions?
- Basic emotions
- Complex Emotions
- Dimensions of emotion
What are basic emotions?
Basic Emotions: comprise a closed set of emotions with unique characteristics, evolved and reflected through facial expressions. Innate and similar in all humans.
Anger, fear, disgust, sadness, surprise, happiness, pride and shame are examples of?
Basic Emotions. They are all innate, universal, and short-lived (not lasting quality)
Combinations of basic emotions, socially or culturally learned that can be identified as long-lasting feelings
Complex Emotions
Love and jealousy are examples of what type of emotions…
Complex Emotions
Describes emotions that are fundamentally the same but that differ along one or more dimensions such as valence (positive-negative) or arousal (high-low)
Dimensions of emotion
T/F: positive valence is associated with withdrawal and negative valence is associated with approach
False. Positive valence (e.g., happy) is associated with approach and negative valence (e.g., angry) is associated with withdrawal.
What should you not do when you encounter a bear?
Run.
What is the James-Lange Theory?
He proposed that the emotions were the perceptual results of somatovisceral feedback from bodily responses to an emotion-provoking stimulus. He used the example of fear associated with spotting a bear. You run because of bodily changes (bear as stimulus causing increased heart rate, sweating) and then fear scared afterwards.
Theory that an emotional stimulus (bear) is processed by the thalamus and sent simultaneously to the neocortex and hypothalamus
Cannon-Bard Theory. The cortex interprets dangerous situation and causes fear (fast process) while the hypothalamus stimulates the SNS and causes an emotional reaction of fight/flight (slower process). Occurs simultaneously.
Theory in which emotional processing is an interpretive act
Appraisal theory.
E.g., we interpret whether we should be afraid or not
Theory that is a blend of the James-Lange and Appraisal theories that reasoning is required to appraise a stimulus before the emotion can be identified.
Singer-Schachter theory. When something happens, we must put a causative agent to it.
What is the adrenaline study?
Two different groups of participants received adrenaline injections. Those that were unaware that they had been injected with adrenaline attributed feelings to the environment (placed with angry confederate).
Theories that suggest that emotion emerges from cognition molded by our culture. Emotions are human-made concepts that emerge as we make meaning out of sensory input from the body and world.
Constructivist Theories
Perspective that emotions involve coordinated cognitive programs that work together. An emotion is not reducible to any one category of effects.
Evolutionary psychology
Theory that emotional response system is separate from conscious feelings of emotion
Ledoux’s high road and low road
What are the 3 components of emotions
- physiological response
- behavioral response
- subjective feelings
The most connected structure in the forebrain
Amygdala
Role of amygdala in fear:
Without amygdala, the evolutionary value of fear is lost. Critical for implicit fear-based conditioning and explicit fear-based learning.
T/F: The hippocampus modulates arousal in relation to memory and enhances retention and modulates hippocampal consolidation
False. The amygdala modulates arousal in relation to memory and enhances retention and modulates hippocampal consolidation.
He was the first to recognize that emotions are needed to optimize decision making. Without them, we would have no rational for any decisions.
Demasio
Study that found that those with orbFC damage lose risk aversion. OrbFC is needed to guide decision making.
Devised Iowa Gambling Task devised by Demasio and colleagues.
3 types of emotion that influence decision making:
- Your current emotional state
- Your anticipatory emotions prior to the decision
- Emotion you expect to feel after you have made the decision
What does the extinction of conditioned response require?
Extinction of a conditioned response (learning there has been a change in reward patterns) requires change in initial perception. Damage to orbFC results in the inability to respond to changing patterns of reward and punishment
Damage to this area leads to inability to assess and make good decisions. Don’t feel regret or anticipate negative consequences to their choices (qualities important for social interaction)
Orbital Frontal Cortex. Has distinct regions related to reward and punishment
This patient could identifying facces, but not recognize the expression of fear on a face
S.M.
Had amygdala damage. Could recognize fear if instructed to focus on the eyes
What part of brain is increasingly activated by angry faces
Orbital Frontal Cortex
What part of brain is active in the categorization of people into groups/racial stereotyping?
Amygdala. Activated in white people when seeing unfamiliar black faces, correlated with racial bias. Effect diminished with longer presentations of faces
T/F: emotional regulation is better in those with increased R frontal lobe vs. L frontal lobe activation
False. Emotional regulation is better in those with increased L frontal lobe
Is it better to control and regulate emotions or suppress emotions?
Not just only 2 emotions. The healthy medium is to suppress but reappraise emotions and reassess as something else.
T/F: reappraisal and suppression will reduce emotion expressive behavior, but suppression boosts SNS activity
True. Suppression of emotions takes energy
Regions of the brain involved with the cognitive control of emotions brought on by reappraisel
Reappraisal increases PFC/ACC modulating structures like amygdala. They are key to the appraisal and modulation processes.
The trait that the amygdala appears to have a more flexible role in processing the relevance of stimuli depending on a person’s current goal and motivation
Affective flexibility. For example, in vegas, if your goal is to not lose money and you do, amygdala kicks in. But, PFC can’t completely eradicate negative stimuli so some negativity bias as well
The rate at which we recover from set-backs or losses
Resilience. Left PFC highly connected to the amygdala in those who are most resilient
The capacity to sustain positive emotion over time
Outlook
Region of brain linked to outlook
The nucleus accumbens located in the ventral striatum (in basal ganglia) are activated when people anticipate a reward. Activity is sustained by PFC
Sensitivity to the emotional state of others (empathy)
Social intuition.
Associated with high levels of fusiform gyrus and low levels of amygdala. People puzzled by others have opposite.
T/F: The larger and more active our insula is, the more self-aware we are
True. Better self-awareness/interoception, the larger the insula
What are the six dimensions of emotional style?
- Resilience
- Outlook
- Social intuition
- self-awareness
- sensitivity to context
- Attention
What region of the brain is associated with sensitivity to context (awareness of the social environment and sensitivity to the rules of social engagement)?
The hippocampus. High activity in hippocampus with healthy, plentiful network is key
What brain region is key in attention?
PFC
What brain region is correlated with interoception (perception of bodily states, vital for homeostasis and well-being)?
Insula. is key to experiencing emotions both at the physical and emotional level; the junction for integration of cognitive and emotional info.
The insula is also associated with risk aversion and perception of positive emotoins
T/F: the amygdala is critical for arousal related to negative/fearful stimuli as well as positive stimuli
False. The amygdala is critical for arousal related to negative/fearful stimuli, but not positive stimuli
What area of the brain is linked to disgust, happiness, and love?
The insula. Mirror neurons activate in viewers appearing to stimulate the experience. This implies a role for emotion in empathy and theory of mind
T/F: love is extremely complex and multifaceted in highly distributed networks
True
According to Damasio, why did feelings originate?
To maintain homeostasis. A felt experience facilitates ways to maintain homeostasis and avoid future adverse conditions. Relevant to depression, drug addiction, pain.
T/F: feelings and body states are rarely connected
False. Feelings have always tended to reference body states and thus provide a window into the processes of life regulation-core of homeostasis.
What do neural maps provide?
Maps allow for monitoring to guide correction. They may have preceded felt experiences, but feelings provide additional benefit to regulation. We have both interoceptive and exteroceptive neural maps.
What are the two action programs key to maintaining homeostasis?
- Drives
- Emotions
They are both an emotion (set of programmed actions triggered by a fear inducing stimulus) and a feelings (conscious experience of fear)
They satisfy basic instinctual needs (hunger, thirst, libido, care and attachment, exploration and play)
Drives
Disgust, fear, anger, sadness, joy, compassion, shame
Emotions
Where are neural substrates of feeling found?
In regions of the brain that exhibit topographically organized somatic maps. Structures in the subcortical grey (amygdala, ventral striatum, basal ganglia) are critical to homeostatic actions. No maps so no direct role in feelings, but . shape state of body.
What are the two distinct phylogenic levels that the neural substrates of feelings are found in?
- The primitive levels of the brainstem
2. The more recently evolved cerebral complex
The two most prominent interoceptive pathways
- The lamina I spinothalamocortical pathway which conveys sensory info from most tissues
- The vagus nerve which conducts information from the viscera
What structure is key to visual attention and has a key role in processes of mind and self
SC. The interoceptive information connects to brainstem structures and reticular formation and this info forms a map that has a crucial role in life regulation and provides neural basis for feeling states
T/F: the Insula is required in order to have feelings
False. The insula is not required, but often engaged in processing of feelings and appears to have a key role in modulation of body states.
What does damage to the posterior half of the brainstem lead to?
Coma and vegetative state: feelings and sentience abolished