Open Mark-Torrance opened 1 year ago
What is the physical height of the display that we used?
We used the wall mount monitor. I don't know the height. Is this something Sofia reported in her thesis? Otherwise I can measure it on Tuesday.
What instructions, as exactly as possible, did we give to participants in the three experiments?
See here. I think this is generally what our RAs did.
Did we recalibrate between blocks (i.e. between the adjacent and non-adjacent conditions)?
We recalibrated between blocks. However "between blocks" is the same as between adjacent and non-adjacent dependencies. In exp 1 and 2, adjacent and non-adjacent dependencies were presented in different blocks but in exp 3 both dependencies were presented at the same time, in both blocks.
Visual angle calculations (just for reference)
#eye distance from monitor
a <- 500
# dot height as proportion of monitor height
prpn_dot <- 1/20
# aoi height as proportion of monitor height
# aoi radius is 2.75 radius of dot
prpn_aoi <- 2.75 * prpn_dot
# monitor height (mm)
h_display <- 380 # need to check this
# dot height
h_dot <- h_display * prpn_dot
# aoi height
h_aoi <- h_display * prpn_aoi
#visual angle
# dist = distance of eye from monitor
# height = height of stimulus on screen
# returns visual angle subtended by stimulus
vangle <- function(dist, height){
2*(atan((height/2)/dist)*180/pi)
}
# dot visual angle
vangle(a, h_dot)
# aoi visual angle
vangle(a, h_aoi)
Here are draft methods sections. We need to add in monitor height, and if it's not 380 mm then recalculate visual angle.
Here are draft methods sections. We need to add in monitor height, and if it's not 380 mm then recalculate visual angle.
It was an array of 16 dots, not 12.
Instructions I gave were pretty much as they were in the document Jens linked above ("Please follow these instructions exactly"). Only change I made was saying that they would "see an array of 16 dots", not "you will see an array of dots". I also added that the task was split into two blocks and that they would have a rest in the middle, if they wanted it, instead of waiting for them to finish the first block and then offering them a break.
It was an array of 16 dots, not 12.
Arse. I thought that might be the case. I'll have to redo the figure. @karlnicholls or @jensroes can you point me towards the location files that you used? I also don't have the trial definition files. I don't actually need these for the methods section, but we should have then saved somewhere safe (other than on the eye tracking computer).
My fault for not having populated this repository yet. Very clumsy :)
Location files: locations_2.xlsx but only LS1 and LS2
Trial definition files:
Experiment 1 / 2: trials.csv
Experiment 3: trials_exp3.csv
Revised method, now featuring 16 dots, and a rather larger figure, which I think is clearer.
Just checked the height of the monitor:
# monitor height (mm)
h_display <- 300 # need to check this
is the answer
Revised version with correct monitor height and visual angles.
@Lai-Sang see last comment.
I'm just finishing writing this. Could someone give me answers to the following: