Planning Flashcards
1
Q
Six Elements Task (SET)
A
- provided with 6 different tasks
- they ask you to do the best you can but to be sure you try as many as possible
- they look at how many tasks you complete and how many you try in provided time
- the DV is planning, they want to look at how you approach the tasks
- has great ecological validity
- difficult to administer
2
Q
Six Elements Task (SET) and frontal lobe patients
A
- patients try less tasks than the controls
- patients spend way longer on a singular task than controls
3
Q
Multiple Errands Task (MET)
A
- give participants a list of things you want them to do ie. go the grocery store, mail a letter
- ask them to complete as efficiently as possible
- they can only go to a place once
- should be mindful of locations close together to be quick
- when looking at the trajectories of controls vs PFC patients, found that PFC patients were way less organized in how they went from place to place
- great ecological validity
- more difficult to administer
4
Q
ecological validity
A
extent to which the findings of a study, or the tasks and settings used in an experiment, can be generalized to real-world situations
5
Q
Steps in the Planning Process
A
- Goal articulation
- Plan formulation
- Marker creation
- Marker triggering
6
Q
goal articulation
A
clearly stating your goal
7
Q
plan formulation
A
creating a framework for accomplishing your goal
8
Q
marker creation
A
- creating “cues”
- create events that trigger memory of what you want to do
9
Q
Marker triggering
A
going out and trying to execute the plan
10
Q
strategy application disorder
A
- higher order impairment in ability to organize thinking and engage in goal-directed behaviour
- difficulties in effectively using, adapting, or applying cognitive strategies to solve problems or manage tasks, even when the individual has the necessary knowledge or skills
11
Q
Tower of London
A
- sensitive to measures of plannig
- given a pattern of organization of the disks they have to accomplish
- there is a specific number of moves that each pattern should take ie. 2 move problems
- they can create various different constraints
Variables of interest - Number of moves needed (vs. made)
- planning time: how much time before 1st move
- execution time: how much time after 1st move
12
Q
Behavioural results of Tower of London (age)
A
- more moves you have to make, the more difficult it is to do perfectly (regardless of age)
- most variability in % perfect solutions between ages for the 5-move problems
- far fewer people cna complete the more difficult tasks even in the max # of moves
- this suggests that the task has a range of difficulty
- can allows us to look at planning abilities in diff age groups in neurotypical individuals
13
Q
Tower of London Task and PET scanning
A
- during the task, the PFC is strongly engaged
- PFC activity is strongly correlated with the ability to do well
- higher activity = better performance
- significant activity in right PFC (because working with spatial information)
14
Q
Tower of London Task with fMRI
A
- looked at brain activity across different task loads (diff # of moves)
- not much activity for simpler tasks
-increased brain activity in multiple regions for difficult tasks (including the PFC)
15
Q
Tower of London Task: effects of brain stimulation
A
- stimulation of right DLPFC in patients with Parkinson’s significantly sped up ability to complete task correctly compared to left DLPFC
- showed improved planning ability and efficiency
- tCDS stimulation to left DLPFC appears to improve ToL performance in healthy controls