Test 2 weeks 6 & 7 PSYC122 Flashcards
Walsh, A.T., Carmel, D., Harper, D.N., Bolitho, P., & Grimshaw, G.M. (2021)- attention
low perceptual load task, room for distractions, three kinds: negative (injury), neutral and positive (erotic couple), people tend to prioritise things with emotional value. Monetary rewards- get points for being fast, motivation to find the letters- with increased motivation distraction is almost completely overridden
The Biassed Competition Model of Attention
at any moment in time what is winning out competition for attention, bottom up mechanism (look at me, look at me), suggests change or novelty, attracts interest/attention, sensitive to environment, top down, bias things towards what is relevant to our goals
Sana et al. (2013)- dual-tasking in class
Experiment 1- all participants used laptops to take notes, half were told to complete tasks on laptop at some point during the class, at the end of the lecture students were given a test about their comprehension of lecture material, independent variable was multitasking or not, 50 v 70%
Experiment 2- view of someone multitasking, view of someone not multitasking, seeing someone on a laptop is distracting
The Costs of Multitasking
What you miss
1. Attention is limited!
2. Dividing your attention results in poor attention for everything.
The Switch Cost
1. When we switch tasks, we have to activate a whole new set of cognitive processes.
2. Switching takes time (seconds to minutes)
Fitz et al. (2019)- notifications (distractions)
notifications, 4 experimental conditions, notifications like usual, once an hour, three times a day, no notifications at all, at end of day a couple of quick surveys, measure well-being, attention, anxiety, phone use, fomo, control and one hour don’t really differ from each other, three times a day- less stress, more perceived productivity, fewer negative feelings, no notifications look like the control group- a lot of fomo
an immediate, brief memory of a visual image that lasts no more than half a second
iconic memory
ultra-short-term memory of auditory stimuli you’ve just heard
echoic memory
Short-term/Working Memory
when we pay attention to something we bring it into our awareness, limited amount of things at once
Long-term Memory- Declarative (explicit) memory
Autobiographical Memory- Semantic memory (knowledge) and Episodic memory (events)
Long-term Memory- Nondeclarative (implicit) memory
Procedural memory
(skills, motor sequences, priming)
Sperling (1960)- capacity and duration of sensory memory and short-term/working memory
Full Report- People can report 1-2 items
Partial Report (report 3 letters instead of 9)- People can report 2-3 items no matter which row is cued!- means they must have been able to see the whole thing, could report any of the rows cued
Delayed Partial Report (present arrows late, gradually increases the delay)- People lose ability to report in 1-4 seconds- if the delay is 1-4 seconds, short lived memory system
Capacity of short-term memory
Our capacity is 7 plus or minus 2, 30 seconds
Capacity of sensory memory
5-10 items, <1-4 seconds
Chase & Ericsson (1981)- Increasing the capacity of short term memory
- Practised digit span 4 days/week for 2 years
- Digit span increased from 7 to 79
- How?- runner, familiar with running times over certain distances and dates, take sequences of numbers and make it a distance, a time and a date, random numbers became a chunk of information, number story
- Transfer?- if you give him letters/words he goes back to 7, only ability to chunk not short term memory, expertise in something create different types of chunk
simplifies memorization by breaking down large information sets into smaller, interconnected units
chunking memory method
Chase & Simon (1973)- Perception in chess
Chess masters have an ordinary limited span of working memory, but that they perceive chess boards with larger “chunk” sizes. memory for chess boards with expert chess players (more than 10,000 hours playing time), played a game and stopped it, showed a picture of the board, look at it for 5 seconds and then they have to fill in the pieces on empty board, novices were terrible at it, experts were really good at it, second experiment randomly put the pieces on the board (would not happen in a game), experts and novices are equally bad, when experts look at a game it looks like a pattern
Peterson & Peterson (1969)- The Duration of Short-term Memory
- Remember: J V L
- Count backwards from 97 by 3’s
- Report letters
Anatomy of a Memory Experiment
Encoding Phase- Read/Listen/Watch, Instructions, Incidental/Intentional
——> delay (immediate/minutes/days) interference ——–>
Test/Retrieval Phase- Free Recall, Cued Recall, Recognition (list of words, half you’ve seen, half you haven’t, have to point out the ones you’ve seen, multi-option quiz)
Levels of Processing Theory
The strength of encoding depends on the level of elaborative rehearsal- 1. Amount of attention paid
2. Amount of meaning information extracted
3. Connection to pre-existing knowledge
Availability
item is in memory