everything Flashcards
describe what skill acquisition is?
the study of our ability to acquire and develop movement skills
verdict on brain training effectiveness?
FAR transfer limited as athletic ability not closely related to task trained so no evidence on improving athletic performance
only improve on same task or similar task requiring working memory in the lab
what are several factors which experts are found to be superior in compared to non-experts?
anticipation (aids limiting factor of reaction time)
sport-specific pattern recall
sport specific knowledge
automaticity of movement
what are some of the background findings about experts vs non-experts?
age - those born 3 months after beginning of season disproportionately represented in teams due to confidence and biological superiority e.g speed
geography - better when from rural areas (more likely to engage in unstructured practice)
type of training - putting in many hours of deliberate practice (physicaly demanding wiht goal of getting better) and unstructured play (relaxed with peers)
describe Williams et al.,1999 model on how experts perceive performace scenes?
with tennis relevant examples?
visual information - detection e.g watch serve - identification e.g way ball is going - decision making & response selection e.g which way to move to return ball
what is temporal occlusion and give an example of how it can be used to test anticipation?
footage/photos paused at different time before/after action
e.g Williams & Burwitz, 1993
shooting at goal
goalies asked to predict where the ball will end up from the cues available
generally experts more accurate with less info (i.e 120ms before kick as opposed to after kick)
what did Eriksen believe made someone an expert?
working at a specific challenging point doing ‘deliberate practice’ for certain amount of time
then you will become an expert
limitation of temporal as opposed to event occlusion?
temporal only tells us about time of extraction
not nature of info i.e which specific cues aid anticipation
what is event occlusion and give an example of how it can be used to test anticipation?
image shows only certain cues with others missing in order to isolate cues and determine whether they are necessary for anticipation of action or not
e.g Abernethy & Russel, 1987
experts and novices indicate final destination of shuttlecock
5 different conditions e.g racquet only and lower body only
found racquet and arm important anticipatory cues for experts
e.g Muller et al., 2006 did same with cricket bowl
what are the implications of anticipation skills for the perceiver?
and for the deceiver?
perceiver: to reduce temporal and event uncertainty
coaching players to be aware of relevant cues
deceiver: learn how to disguise event and temporal cues o increase uncertainty
what did Causer & Williams, 2015 find out about clothing deception when taking penalties?
had penalty takers wear 3 different kits (normal, zigzag or circles) which make it easier/harder to detect hip position before taking kick
found that skilled ppts struggled most to anticipate where kick going when zigzag then circle - more affected by deception but consistently better response accuracy
no differences between kits for non skilled
what did Jackson et al, 2006 find about deception in football which slightly contradicts Causer & Williams findings?
used temporal occlusion with footballer doing stepover (deception) or doing nothing at all and had to guess direction they would go
found novices more affected by deception as stepover likely to happen in football (as opposed to deceiving kits)
what is meant by the behavioural arms race?
anticipation vs deception
should someone be more attuned to cues, the player they are against has to have a better disguise
also if more attuned to cues then will be better at deception and other player has to have improved discrimination
what are some problems with occlusion testing which limits the current data?
tesing in lab enviros and using videos rules out physical nature of sport - no way of knowing if would be able to act on knowledge of e.g where penalty going in real time and no idea whether they’d pick up those certain cues in situ
situational probabilities in game play not replicated in studies e.g information of game play past and present and situational factors of stress
small screen so not a realistic view
loss of audio
describe a decision making test currently used to test athletes/youth players?
and a study which uses it?
Belling et al., 2015 filmed football games and asked coaches what would be most-least likely to happen next when stopped at a certain time
Kelley, 2018, tested kids at Exeter city and found higher performers generally better at deciding best next move so might help discriminate between better or worse players
how watching decision making video is a good exercise for task cohesion?
showing a team a video of a recent game and asking what should happen next
good for team cohesion as testing whether players come up with same answers to show they read play the same and understand the decisions undertaken by their teammates
what % of penalties are missed?
roughly 25%
what % of cases can goalies save the penalty?
roughly 18.8%
what did Savelsbergh et al., 2002 find about goalies and penalties?
life size projection of player taking penalty, wearing eye trackers and holding joystick to indicate where they’d go
experts 36% saved and novices 25% saved
experts 42% height and novices 32%
experts 84% side and novices 71%
experts had slower reaction time but less correction
longer fixation period (focusing on 1 thing)
experts fixate more on legs and ball whereas noices more on upper region hence why they may be less accurate as fixating on wrong cues
BUT holding a joystick might not be reflecting on reality
what did Dicks, Button and Davids, 2010 find about fixation in different situations?
had a number of different conditions including in situ, in situ with reponse, verbal, joystick all to do with saving penalties
intercept condition longer looking at ball, moving look at feet, verbal look at feet
statistics on where focusing when taking a penalty?
70% focus on keeper (Kuhn, 1998)
visually guided aiming says generally we look at what we hit to be more accurate
what did Wood, 2010 find about penalty taking and gaze?
- 3 types
- most accurate
3 types of gaze:
1) keeper dependent - look at goalie and make decision based on what they do
2) keeper independent - look where aiming
3) giving the eyes (opposite independent) - look one side and hit the other
accuracy:
KD less accurate as hit it closer to goalie (worse takers overly focus on goalie in all their kicks but also most common type of kick which may be due to goalie being source of threat so fixate on them when anxious), better to look at target to be more accurate e.g if move late then throws you off as unexpected
best is keeper independent as if hit it accurately keeper can’t save it anyway
what did Jordet find about penalty accuracy and motivations?
if your penalty means you’ll lose if you miss, only 62% score
if your penalty means you’ll win, 92% will score
in 1 the bad guy (threat as doubting abilities) and in 1 the hero (challenge as trusting oneself in the hard situation)
describe the attentional control theory?
Eysenck et al., 2007
anxiety increases focus on threatening stimulus (internal & external) and makes us explicitly monitor our surroundings
due to disruption in balance between attentional systems and overriding by bottom-up
2 attentional systems: (Corbetta & Shulman, 2002)
bottom-up: stimulus-driven for directing attention to salient/novel stimuli in ventral system
top-down: goal directed for response selection in dorsal system