skills, habit and expertise Flashcards
what is expertise?
- very good at something
- could be the best at the skill
–> at least very good - requires practice
practice
- can lead to expertise
- repeatedly doing a skill
- get better at something
what is automaticity?
- refers to rather specific properties of performance
- tasks that can be performed quickly, effortlessly, and relatively autonomously are thought to be automatic
- automaticity refers to more specific properties of performance than skill
–> but closely related to skill in that it is an important component of skill
what is a skill?
- more general ability to complete a task
types of tasks used to measure autonomic processing
conflict tasks:
- Stroop task
- Flanker task
–> respond to central arrow
- Simon task
–> push the named button
- Go/No-Go task
real life conflict tasks
- Norman Doors:
–> doors with handles
–> but they are ‘push to open’ doors
–> does against instinct to pull the doors - signs:
–> can say conflicting things
–> colour of words different to the colour of the ink - marketing
–> using darker colour for ‘day’ and lighter colour for ‘night’ - hotel door keys
–> need to put it down but a the image points up
what do results of the Stroop task mean?
- interference is the difference between the RTs to congruent and incongruent conditions
- slower RTs to incongruent information than congruent information when naming the ink colour (but not when reading the word) suggests that automaticity of word reading interferes with the processing of the ink colour
how can we manipulate the Stroop task to test the nature of automaticity?
- how do response factors affect automaticity?
- do automatic processes operate independent of attention?
- are automatic processes just faster?
- can anything become automatic?
traditional Stroop task
- there is typically a verbal based response to the stimuli
–> oral response or respond manually to visual written word - this is regardless of whether the task is to name the colour of the ink (visual sensory task/stimuli ) or to read the word (visual verbal task)
Durgin (2000) argument about traditional Stroop task
- argues that the match between the verbal stimuli of the written word and the verbal-based response when asked to read the word requires less processing than when asked to name the ink colour (mismatched S_R)
- when naming the ink colour the target information of ink colour must be translated into the appropriate verbal classification modality
–> whereas the non target (distractor) information of the actual word is already in the verbal modality
Translation account of the Stroop interference
- when reading the word
–> target stimulus (red) is verbal
–> response is verbal (say red)
–> similarity in S and R
–> no translation - when asked to name ink colour
–> target is sensory visual (red)
–> response is verbal (say blue)
–> mismatch between S and R
–> translation is needed
how did Durgin (2000) fix translation problem?
- changed the format of the response participants needed to respond to Stroop stimuli
- used a computer mouse to point to coloured patches
tasks in Durgin (2000)
- to point to the ink patch that matched the meaning of the word (word reading)
- to point to the ink patch that matched the colour of the ink the word was written in
- there were only neutral conditions
–> for the word task the colour word was in grey ink
–> for the ink naming task furniture words were presented in coloured ink - and incongruent conditions
- no congruent conditions
results of Durgin (2000)
- colour interfered with word-naming/reading (longer RTs and more errors) when asked to point to the colour patch consistent with the word meaning than the neutral condition
- this was not observed on the point to the colour patch that matched the ink
–> a “reverse Stroop effect”
conclusions from Durgin (2000)
- findings were against automaticity theory as an explanation for interference on the Stroop task as pointing to the ink is not automatic
–> but that is assuming that automaticity is based on the act of word reading as being the fundamental aspect of automatic process - an alternative explanation for the findings is that stimulus response compatibility is actually key to automaticity
–> it is not just a sensory process, but about the associations
between stimulus and response - when the S_R formats are similar then this supports automaticity
attentional manipulations
- in the traditional Stroop task the argument that automaticity of word reading can explain the Stroop effect (interference) has been based on participants paying attention to whole words
- these words are thought to activate semantic and lexical processing
- so attention is paid across the whole word
- what happens when participants are asked to pay attention to a specific letter in the word?
Besner study 1
- directed attention to a single letter in the word as that letter was the only part of the word in a coloured ink
- Results:
–> Stroop effect eliminated when only one letter was coloured –> suggesting that paying attention to part of the word did not lead to automatic processing of the word at a semantic level
Besner study 2
- attention was directed to a single letter in the word by having an arrow point to the target letter
- results:
-> the Stroop effect was reduced or eliminated by cueing one letter of a coloured word
conclusion form Besner
- automaticity of word reading is not independent of all
other cognitive processes - as where you
pay attention and how you pay attention seems
to affect whether word reading appears to be
automatic
stimulus onset asynchrony
- speed processing account:
–> simply that words are processed more quickly than ink colour - in the traditional Stroop task the word is presented at the same time as the ink: indeed the word is written in the colour of the ink.
- what happens if the presentation of the word and the ink colour is staggered (asynchrony)?
Glaser and Glser (1982) - stimulus onset asynchrony manipulations
- presented the colour and word components of Stroop stimuli at different times
–> a stimulus onset asynchrony (SOA) manipulation - results:
–> for naming the ink (colour naming) you see the Stroop effect regardless of when the word stimuli was presented
–> until word is presented at 300 and 400 ms after the ink
(300 and 400 ms the irrelevant stimulus [word] is presented too late to interfere with processing of ink naming) - no amount of head start for colour information produced interference on word reading
conclusion from Glaser and Glaser (1982)
- speed of word processing being faster than ink processing cannot explain these findings
- there is more to automaticity than just speed of processing
is automaticity all or nothing?
- there is a debate as to whether a process is either automatic or not (all or nothing) or whether automaticity can gradually develop (dimensional)
can anything become automatic?
- Stroop Effect is often explained by the fact that word reading is automatic so interferes with naming the ink
- One question that is raised is that with practice can anything become automatic?