PSYC 358 Flashcards
temporal resolution
the accuracy with which one can measure when an event is occuring
spatial resolution
the accuracy with which one can measure where an event is occuring
invasiveness of a method
whether or not the equipment is located internally or externally
mental chronometry
defined as the study of the time-course of information processing in the human nervous system
speed-accuracy trade-off
If people are required to respond faster, they will tend to be less accurate
performance measures advantages
They reflect actual behaviour; they are simple to analyze and interpret
performance measures disadvantages
They are hard to link directly to neural substrates (unless combined with other measures)
There is not always a clear relationship between lab tasks and real-world behaviour
preferential looking
in infant research, a number of stimuli (normally 2) are presented and the amount of time that infant spends looking at each of them is scored
habituation
in infant research, the same stimulus (or the same kind of stimulus) is presented repeatedly and the infant’s attention towards the stimulus (measured in terms of looking time) diminishes
inter-rater (or inter-observer) reliability
the extent to which two independent observers generate the same answers
blind scoring
the observer is unaware of the status of the event that is being scored
emotions
states associated with stimuli that are rewarding or punishing
reward
an outcome that one is willing to work to obtain
punishment
an outcome that one is willing to work to avoid
mood
an emotional state that is extended over time (anxiety is a mood and fear is an emotion)
interoception
the brain’s ability to sense the current state of its internal organs
hedonic value
the subjective liking/disliking of a stimulus/event
expressions
external motor outcomes in the face and body associated with emotional states
motivation
states in which rewards are sought and punishers are avoided
id (freud)
unconscious motivations that represent primitive urges from our non human ancestry
ego (freud)
the conscious self operating according to reason rather than passion
cannon-bard theory
a theory centered on the hypothalamus’ role in emotions in which bodily responses occur after the emotion itself
superego (freud)
the ideal self, such as ou cultural norms and our aspirations
James-Lange theory
the self-perception of bodily changes produces emotional experience
papez circuit
a limbic-based circuit that was once thought to constitute a largely undifferentiated emotional brain
primary reinforcers
stimuli that act as rewards or punishers without any prior learning
secondary reinforcers
learned rewards or punishers
basic emotions
different categories of emotions assumed to be independent of culture and with their own biological basis
happy
sad
disgust
anger
fear
surprise
social referencing
use of emotional cues in others to learn the rewarding/punishing nature of initially neutral stimuli
moral emotions
emotional states that arise following a comparison of actual behaviour (own behaviour, other’s behaviour) relative to a normative or ideal behaviour
amygdala
collection of nuclei buried bilaterally in the anterior temporal poles
Kluver-Bucy syndrome
behaviours associated with lesions in the amygdala region of primates, including an unusual tameness, emotional blunting, a tendency to examine objects with the mouth, and dietary changes.
second order conditioning
a form of learning in which a stimulus is first made meaningful through an initial step of learning and then that stimulus is used as a basis for learning about some new stimulus
masking
the presentation of junk visual material after a stimulus (to eliminate persistence of a visual image)
advantages of observational measures
they can be used when it’s impossible or inappropriate to give instructions to a participant; they can be used in naturalistic settings
disadvantages of observational measures
there are difficulties associated with scoring and observer biases (although methods such as eye tracking can limit this)
left off W2 reading
fill in after this
what is developmental social neuroscience
study of neural mechanisms behind social behaviour
- social perception
- emotional perception
- cognition
- behaviour
social processing involves
- perception of other’s cues
- emotions felt
- regulation of behaviour
who’s phinneas gage
guy with pole through brain, personality changed due to pole in frontal lobe
early example of lesion studies
reliability
the extent to which the same measure would yield the same results if repeated
acquiescence bias
a tendency to respond affirmatively in surveys, irrespective of the content of the question
factor analysis
a statistical method for reducing a data set
external validity
the extent to which a measure relates to something useful in ‘real life’
type I error
getting a significant result when there is no real effect
type II error
getting a nonsignificant result when there is a real effect
whereas observational methods measure ____, survey methods ask ___
observational methods measure how ppl actually behave, survey methods ask ppl how they think they might behave
may have lower external validity then (surveys)