Lab 8: Information and Movement - Fitts Law
Channel: Ehsan Karim
Date: 2013-11-02

Requirements:
Careful! The y-axis is time per tap. So, 30 secs/# taps.

Question 3:
a. Explicitly mention the a and the b parameters (that you have found) for both the end-effectors (hands and feet), and use this information in conjunction with the graph to answer question b, and c in question 3. 

b. Talk about the different slopes and their respective physical interpretation in terms of movement time and the difficulty index. Relate the idea with the actual theory that is explained in the introductory part of the lab hand-out and the book.

N.B. make sure, in your discussion you have included the idea the how distance and size of the coins relate with the theory and your collected data (slope and the intercept).

c. Why do you have different slopes and y-intercepts for hands and feet? What does it, even, mean? When you answer, think in terms of (1) gross and fine movements, and (2) Brodmann brain regions and their different sizes. Why do you think they have different sizes in our brain associated with hands and legs?

N. B. What does the y intercept mean (I want the physical interpretation of the idea, think about it)? What does the different intercepts (hands and feet) tell us about our limbic precision capacity? Additional hint: Do you need time to do things which are super easy? 

Word limit 250!!

Question 4: Read the theory (book and the introductory part of the lab-pdf-handout) and try to summarize the data based on your explanation (as given in question no 3). However, this time, please take into consideration the average amount of errors that has been made while doing the different task under different difficulty conditions.

Word limit 100!!

Question 5: Summarize all the three theories (in your own words) and talk about the similarities and dissimilarities with your collected data and intuition (for every single one of them); and at the end show comparative reasoning(s) to select the one that best fits with your data and your understanding.

Word limit 350 (100 + 100 + 100 + 50)

How to graph trend lines in excel: http://www.youtube.com/watch?v=rBme0yo45Bo