CLOA Studies Flashcards
Bartlett
- told participants (all British) a Native American legend (The War of the Ghosts).
- participants were later asked to recall this story using either repeated reproduction or serial reproduction
- findings showed that the story was distorted in the following patterns:
- assimilation
- leveling
- sharpening
- memory is based on existing schemas
- no standardized instructions, no difference between the two recollection groups, quasi-experiment
Brown & Kulik
[flashbulb memories]
- 40 black and 40 white Americans filled out a questionnaire asking about the deaths of public figures (like Kennedy and MLK) and the deaths of loved ones
- most participants had detailed memories of these events, but 75% of black participants had flashbulbs of MLK’s death compared to 33% white
- subject to the social desirability effect, replicable (increases reliability), level of emotion can’t be quantified, can’t determine the role of rehearsal in the creation of the memory, difficult to generalize
Loftus & Palmer
- the 45 participants were split into 5 groups and each watched a video of a traffic accident. they were then asked to give a short account of the video before taking a questionnaire.
- “how fast were the cars going when they _____ each other?” the verb was changed, and this affected the speed people guessed and how gruesome the accident they recalled was
- people’s memory can be changed with the context
- confounding variables were controlled, not generalizable (experiment performed on students only), participants were aware they were in an experiment
Neisser & Harsch
- less than 24 hours after the challenger disaster, 106 memory students were given a questionnaire asking them to answer questions about their experience watching the disaster. they completed the same questionnaire 2.5 years later. then, participants were interviewed.
- most participants had a large number of discrepancies between their stories, but most participants said they were confident in their stories
- several studies show similar results (flashbulb memories with 9/11, replicable), no control over participants between questionnaires (more confounding variables)
Speisman et al
- 56 psych undergrad students were shown a video of a circumcision with different music playing (trauma, intellectualization, denial). while watching, their heart rate and skin responses were measured, and after, they took a questionnaire about their stress levels.
- findings: the trauma condition showed the highest levels of physiological stress and the questionnaire responses were the strongest in both the control and the trauma groups
- supports Le Doux’s two-factor theory, is highly controlled, and questionnaire responses were compared blindly to eliminate researcher bias, but there was possible emotional distress
Darley & Gross
- participants watched Hannah (a girl) take a test and were told she was either rich or poor.
- participants in the wealthy condition rated Hannah’s performance above fourth grade, whereas the poor condition group rated her performance below fourth grade, in spite of watching the same video
- these findings demonstrate that stereotypes about socioeconomic status affect perceptions of intelligence.
Milner (H.M.)
- case study of H. M., who got in a car accident and suffered seizures
- Milner removed his temporal lobe and part of the hippocampus, causing H. M. to have amnesia
- couldn’t make any new episodic memories, but had his old memories and the ability to create procedural memories
Glanzer & Cunitz
- participants were given a list of items and told to recall them immediately after hearing the whole list
- results showed that the primacy effect and recency effect held true
- words at the beginning and at the end were best remembered
- supports the theory of multiple memory stores (STM, LTM), not a true experiment because, while it was highly controlled, there is no allocation of participants to different conditions
Meany et al
- rats were taken away from their mothers and either handled as their mother would handle them or stuck in isolation
- the isolation rats had increased stress hormones
- after this process, the rats were killed and their hippocampal mass was measured
- higher concentration of glucocorticoids caused hippocampal cell death and worse memory
Cole & Schribner
- tested children from the U.S and Liberia
- gave them lists of words to remember (that matched their respective cultures) and asked them to recall as many as possible
- words were then given in story form
- U.S. children did better on the list, but Liberian children did better on the story
- shows culture has an effect on memory
- overall reliable, as many statistical tests were performed, however, since the IV is culture (not technically manipulated and hard to operationalize) the results aren’t ironclad.
LeDoux
- rats were conditioned to feel fear when they heard the sound of the bell
- LeDoux then lesioned parts of their brain until he found the part that held the information for the conditioning (auditory thalamus)
- conclusions: biological connection to emotion, strict localization
declarative memory
memory of facts and events, refers to memories that can be consciously recalled
episodic memory
memory if specific events that occurred at a given time and place
procedural memory
unconscious memory of skills
semantic memory
general knowledge of facts and people not linked to a time and place
transactive memory
groups collectively encode, store, and retrieve knowledge (generationally passed on, Jung’s theory)
anchoring bias
an individual relies too heavily on a given piece of information; using the given as a reference point
availability heuristic
mental shortcut that relies on immediate examples that come to mind when making a decision