Cognitive Task Analysis - Science topic
Cognitive task analysis (CTA) is “the extension of traditional task analysis techniques to yield information about the knowledge, thought processes, and goal structures that underlies observable task performance” (Schraagen, Chipman, & Shute, 2000, p.4). In contrast to the traditional task analysis techniques, such as Hierarchical Task Analysis (HTA), Goals Operators and Selection Rules (GOMS), Verbal Protocol Analysis, which provide a physical description of the activity performed within complex systems, cognitive task analysis extends the traditional methods to describe the knowledge, thought processes and goal structures underlying observable task performance (Stanton, Salmon, & Walker, 2005). According to Wei and Salvendy (2004), cognitive task analysis is used to understand the cognitive elements of job performance, and for designing jobs that support and maximize cognitive skill performance. The cognitive task analysis approach is valuable for investigating tasks that depend on the cognitive aspects of expertise (Klein, Calderwood, & MacGregor, 1989)
Questions related to Cognitive Task Analysis
I am interested in exploring the degree to which the typical distractions encountered in offices (e.g. overhearing irrelevant conversations, distractions in visual field) interfere with the typical types of tasks performed in those offices. In other words, I want to be able to predict how much the performance of Task A (primary work activity) will be disrupted by the concurrent performance of Task B (attending to, and trying to ignore, an irrelevant distractor).
I have previously come across Wickens' Multiple Resource Theory and its use as a computational model to predict dual task interference (e.g. Wickens, 2008), and found it to be a very useful framework for describing which cognitive resources are used for which tasks. However, I have only ever seen this applied in contexts such as interface design in visual tasks (e.g. designing cockpits for pilots). Is anyone aware of the application of this theory in more traditional workplace design?
Alternatively, is anyone aware of any other useful frameworks which might help me to predict how a particular type of 'knowledge work' will be disrupted by the presence of a distractor?
I am currently working on task characteristics and its affect on efficiency. so now looking for some help regarding the work on task size and task structure affect on the performing that task? any help would highly be appreciated.
Hi everyone! I am conducting a cognitive task in the scanner. During my research, I would like to have the scanner TTL pulse trigger the PTB script in matlab. I need to know the timing between behavioral event (during each trial) and fMRI acquisition. Now the host computer running PTB is connected to the GE scanner through USB port using the device (http://www.sinorad.com/), which transforms the button presses to numbers of 1, 2, 3 and 4 registered in the computer. With the psychtoolbox, could our computer receives TTL pulse through USB port? If it could, how to set the interface, and localize the onset time of each button press response to certain slices or pulses? Thank you in advance.
What can be proper and validated task to evaluate in children aged 8-11 and adolescents aged 12-14
1. Executive functions.
Now, I know there are inventories for these (like the BRIEF for executive functions) but I'm more interested in tasks, preferably the kind of tasks that don't consume more than 5-10 minutes per participant and doesn't require expert to deliver them.
Also, when it comes to executive functions I would like to know about tasks that evaluate attentional control, inhibitory control, and cognitive flexibility, reasoning, problem solving, and planning and working memory each by itself or (and preferably) a combination.
I am working with n-back paradigm. Participants were presented 0-back, 1-back, 2-back and 3-back conditions three times. Therefore, there are 3 trials for each n-back condition in my experiment for every participant. Participants were required to press the left button if they see a target letter, and right button if they see a non-target letter, based on the instructed condition. There are 10 target and 20 non-target letters in a single n-back condition. So, for example for 0-back condition total number of signal trial is 30, and total number of noise trial is 60. I want to learn whether participants distinguish target letters from non-target letters and also whether they have a bias on responding as target. First of all, I've calculated d' and c, as Stanislaw and Todorov suggested, by using excel commands. What I've see when I've finished my calculation is that, i.e., -0,181, -0,784 values of d' and so on. Generally, d' values are negative. Negative values are very bad for me. Because this means that participants cannot distinguish target and non-target letters. So, they've press the buttons by chance. In addition, before I've made my calculation, I've made a correction which is dubbed loglinear correction, as Hautus suggested, to all of my hits and false alarms. The dissappointing point for me is that I've found a significant effect of condition (i.e., as the n-back condition gets harder, the number of deteceted target letters has decrease). I wonder if is it possible to conduct a signal detection analysis to this type of an experimental design?
What kind of evaluation method you usually use to evaluate Cognitive Performance in an Anesthesiology and ICU Residency Program?
Hello, I am attempting to design a study that measures potential changes in cognitive performance in individuals who smoke a fixed amount of marijuana over the course of a year. I wanted a test that I can administer to gather a baseline for the subjects before the study begins and then at 3 month intervals through the course of the study. Any suggestions on what test I could use?
According to Zavalloni, Social identity refers to the representation of social environment just like the nested systems of the development theory of Urie Bronfenbrenner.
It also good to identify the difference between Zavalloni and Tajfel (He views it as a process of social categorization) as concerning what social identity is.
Is there a new cognitive task analysis in Phases of flight for pilot?
Please, send me.
Thanks, for your attention
“Phases of flight” means: Pre-flight, Pre-departure, Gate Departure, Taxi-out, Take-off, Terminal Area Departure, Climb, Cruise, Descent, Terminal Area Arrival, Final Approach, Landing and Rollout, Taxi-in, Parking and Post-flight.
Why is there a difference between an item on a to-do list or calendar that says "Goto gym" versus one that says "Fit into tuxedo in time for wedding - work out at the gym now!"
Which studies can I read that demonstrate this difference?
Would object location be appropriate for this purpose or is some other test known to be more accurate for this region? I know the majority of hippocampal-dependent learning tests are based on dentate gyrus-dependent tasks, and I'm finding it blurry to select a CA3/CA1-dependent task.
Thank you very much.
The task would have to be one where headache severity would predict cognitive performance.
For instance can we assume attention/ executive control, semantic and procedural memory would be involved in particular tasks?