This zip contains data associated with the paper found here: http://rstb.royalsocietypublishing.org/content/372/1714/20160106 
For further information about the data, contact either Anne P. Hillstrom (a.hillstrom@soton.ac.uk) or Valerie Benson (v.benson@soton.ac.uk). The data were collected in 2014 at University of Southampton using a computer-based experiment in which participants’ eye movements were tracked using an EyeLink1000.
This zip contains three things. 
1.	The programme used to collect the data: graph.ebd. This is an experiment builder programme, and can be read using experiment builder software from SR Research Ltd.
2.	A folder containing files defining the interest areas used for each image, which can be used to identify the size and position of the targets. The images themselves are not included because most of them are commercially protected. However, it is possible that some scientists would like to know the size or nature of the interest areas, so we have included the interest area files. Each file is basically a txt file.
3.	Reports created by Dataviewer software, also from SR Research Ltd. Each report is an Excel file. It contains the fields that Dataviewer created and some additional fields that were created by manipulating the data in the reports. For instance, most files include pivot tables. For 
Interest Area files
In each file, one file for each scene, are four lines. The field field is the shape of the interest area. The second field is a numerical identifier of the interest area. Then the top left x and y coordinates. Then the bottom right x and y coordinates. Finally the type of target: Likely1 is the initial target location, Likely2 is the likely final target location, unlikely is the unlikely final target location, and implaus is the implausible final target location. The name of the file gives an indication of what kind of object the target was.
Report files
Aggregate ia rpt1.xlsx: The sheet with the raw data is “aggregate ia report1”. All of these fields are aggregated across participants, usually by averaging.
Name of column	Meaning	
IA AREA	number of pixels in the interest area	
IA DWELL TIME	total time in ms that the eyes were directed to the interest area	
IA DWELL TIME %	dwell time on this ia divided by total time the eyes were fixated	
IA FIRST FIXATION DURATION	length in ms of first fixation on the interest area	
IA FIRST FIXATION TIME	when in the trial was the ia first fixated	
IA FIXATION COUNT	how many times was the interest area fixated	
IA FIX COUNT %	what proportion of fixations in the trial were fixations on this interest area	
IA LABEL	whether the ia is for the initial or final position of the target	
IA REVISIT TRIAL %		
IA RUN COUNT	how many times was the interest area visited, excluding successive fixations on the same ia	
IA VISITED TRIAL %	% of trials in which this interest area was visited	
IP LABEL	period of time in the trial for which this report was created	
TRIALS IN GROUP	number of trials across which data were combined	
TRIAL GROUP	showing what conditions were included in averaging participant data together in this file	
prevNY	whether or not there was a preview of the scene before the target was named	
loctype	final location type: likely, unlikely or implausible	
pic	name of the image with the target in the initial likely location	

Fix rpt for distance to final target.xlsx: The raw report output is in the sheet labelled “fix rpt for distance”. It has some computed columns added. The period of the trial from which the report was drawn (the IP) was the time at which the target moved to the response.
Name of column	Meaning	
RECORDING_SESSION_LABEL	participant indicator	
prevYN	was there a scene preview before the name of the target was revealed?	
trial_type	final location type: likely, unlikely or implausible	
target_final_x	x coordinate of final target position	
target_final_y	y coordinate of final target position	
initial_image	name of the image with the target in the initial likely location	
TRIAL_INDEX	trial identifier	
CURRENT_FIX_INDEX	fixation identifier	
CURRENT_FIX_X	x coordinate of the current fixation	
CURRENT_FIX_Y	y coordinate of the current fixation	
CURRENT_FIX_NEAREST_INTEREST_AREA_LABEL	the closest interest area name	
CURRENT_FIX_NEAREST_INTEREST_AREA_DISTANCE	distance to the closest interest area	
CURRENT_FIX_INTEREST_AREA_LABEL	if the fixation landed in an interest area, the name of the ia	
CURRENT_FIX_MSG_TEXT_1		
CURRENT_FIX_START	time at which the fixation started	
target_altitude	was the target in the top half or bottom half of the image	
target_side	was the target in the left or right half of the image	
target_eccentricity	how far from the centre did the target appear	
gaze_conting_worked	did the image move during an eye movement? 1=yes, 0=no	
last fix?	is this the last fixation of the trial?	
acc_2_deg?	was the fixation within 2 deg of the target?	
acc_2_deg_all		
ttime if dist to final targ < 2?	the time, if the fixation is within 2 deg of the target	
likely1x	x coordinate of the first target location	
likely1y	y coordinate of the first target location	
distance to likely1	distance to the first target location	
distance to likely1 in deg	again	

FixRpt for FirstFix location.xlsx: The raw report output is in the sheet labelled “FixRpt for FirstFix location”. It has some computed columns added. The period of the trial from which the report was drawn (the IP) was the time at which the target moved to the response.
Name of column	Meaning	
RECORDING SESSION LABEL	participant indicator	
TRIAL INDEX	trial identifier	
initial image	name of the image with the target in the initial likely location	
prevNY	was there a scene preview before the name of the target was revealed?	
trial type	final location type: likely, unlikely or implausible	
target final x	x coordinate of final target position	
target final y	y coordinate of final target position	
CURRENT FIX INDEX	fixation identifier	
CURRENT FIX X	x coordinate of the current fixation	
CURRENT FIX Y	y coordinate of the current fixation	
CURRENT FIX NEAREST INTEREST AREA LABEL	the closest interest area name (only the initial and final positions were used as interest areas)	
CURRENT FIX NEAREST INTEREST AREA DISTANCE	distance to the closest interest area	
CURRENT FIX INTEREST AREA LABEL	if the fixation landed in an interest area, the name of the ia	
CURRENT FIX IS RT END	is this the last fixation of the trial?	
gaze conting worked	did the image move during an eye movement? 1=yes, 0=no	
accuracy	was the response accurate?	
likely1x	x coordinate of the first target location	
likely1y	y coordinate of the first target location	
distance to likely1	distance to the first target location	
distance to likely1 in degrees	ditto	

Fix_rpt_to_find_accuracy.xlsx: The raw report output is in the sheet labelled “fix rpt to find accuracy”. It has some computed columns added. The period of the trial from which the report was drawn (the IP) was the time at which the target moved to the response.
Name of column	Meaning	
RECORDING_SESSION_LABEL	participant indicator	
trial_type	final location type: likely, unlikely or implausible	
target_final_x	x coordinate of final target position	
target_final_y	y coordinate of final target position	
initial_image	name of the image with the target in the initial likely location	
preview	trial identifier	
Ynprev	was there a scene preview before the name of the target was revealed?	
TRIAL_INDEX	trial identifier	
CURRENT_FIX_INDEX	fixation identifier	
CURRENT_FIX_X	x coordinate of the current fixation	
CURRENT_FIX_Y	y coordinate of the current fixation	
CURRENT_FIX_NEAREST_INTEREST_AREA_
LABEL	the closest interest area name (only the initial and final positions were used as interest areas)	
CURRENT_FIX_NEAREST_INTEREST_AREA_
DISTANCE	distance to the closest interest area	
CURRENT_FIX_INTEREST_AREA_LABEL	if the fixation landed in an interest area, the name of the ia	
Last_Fixation?	is this the last fixation of the trial?	

iaRpt for 4 IAs.xlsx: The raw report output is in the sheet labelled “IARpt for 4 IAs”. It has some computed columns added. The period of the trial from which the report was drawn (the IP) was the time at which the target moved to the response.
Name of column	Meaning	
RECORDING_SESSION_LABEL	participant indicator	
TRIAL_INDEX	trial identifier	
initial_image	name of the image with the target in the initial likely location	
prevNY	was there a scene preview before the name of the target was revealed?	
trial_type	final location type: likely, unlikely or implausible	
IA_LABEL	the name of the interest area	
IA_LEFT	left edge of the interest area	
IA_RIGHT	right edge of the interest area	
IA_TOP	top edge of the interest area	
IA_BOTTOM	bottom edge of the interest area	
IA_FIRST_FIXATION_TIME	time of the first fixation on the interest area	
IA_FIRST_FIXATION_INDEX	ordinal identifier of the first fixation on the interest area	
IA_FIXATION_COUNT	how many times in the trial was the interest area fixated	
IA_FIRST_FIXATION_X	x coordinate of final target position	
IA_FIRST_FIXATION_Y	y coordinate of final target position	
accuracy	was the response accurate?	
gaze_conting_worked	did the image move during an eye movement? 1=yes, 0=no	
IA_DWELL_TIME	how much time was spent fixating the interest area	
IA_DWELL_TIME_%	what proportion of all time spent fixating was spent fixating this interest area	

IARptMore2.xlsx: The raw report output is in the sheet labelled “IARpt from scene onset”. It has some computed columns added. The period of the trial from which the report was drawn (the IP) was the time at which the scene first appeared with the target in its first location to the response.
Name of column	Meaning	
RECORDING_SESSION_LABEL	participant indicator	
TRIAL_INDEX	trial identifier	
trial_type	final location type: likely, unlikely or implausible	
initial_image	name of the image with the target in the initial likely location	
prevNY	was there a scene preview before the name of the target was revealed?	
IP_START_TIME	start of the period for which this report was created	
TRIAL_START_TIME	start of the trial	
IA_LABEL	the name of the interest area (only 1st and last target location were used)	
IA_LEFT	left edge of the interest area	
IA_RIGHT	right edge of the interest area	
IA_TOP	top edge of the interest area	
IA_BOTTOM	bottom edge of the interest area	
IA_FIRST_FIXATION_TIME	time of the first fixation on the interest area (relative to trial start time)	
IA_FIRST_FIXATION_INDEX	ordinal identifier of the first fixation on the interest area	
IA_FIXATION_COUNT	how many times in the trial was the interest area fixated	
target_eccentricity	how far from the centre did the target appear	
target_side	did the target appear on the left or the right	
target_altitude	did the target appear in the top or bottom half	
gaze_conting_worked	did the image move during an eye movement? 1=yes, 0=no	
acc2deg	was there a fixation within 2 degrees of the target	
relative IP start	IP start time minus trial start time	
relative_first_fix_latency	time of the first fixation on the interest area (relative to the appearance of the target in its initial position)	

Msgrpt w sacs.xlsx: The raw report output is in the sheet labelled “testmsgrpt w sacindexes”. It was used to calculate the time it took to switch target locations (by measuring the time between certain messages). 
Name of column	Meaning	
RECORDING_SESSION_LABEL	participant indicator	
TRIAL_INDEX	trial identifier	
MSG_FIX_INDEX	which fixation the message appeared with	
MSG_TEXT	what the message said	
SAC_INDEX	which saccade did the message appear with	
MSG_TIME	when did the message appear	

sacRpt for distance of first fix again.xlsx: The raw report output is in the sheet labelled “sacRpt for distance of first fi”. It has some computed columns added. The period of the trial from which the report was drawn (the IP) was the time at which the scene first appeared with the target in its initial position to the response.
Name of column	Meaning	
RECORDING SESSION LABEL	participant indicator	
TRIAL INDEX	trial identifier	
prevNY	was there a scene preview before the name of the target was revealed?	
trial type	final location type: likely, unlikely or implausible	
initial image	name of the image with the target in the initial likely location	
CURRENT SAC INDEX	saccade identifier	
CURRENT SAC END X	x coordinate of the saccade landing position	
CURRENT SAC END Y	y coordinate of the saccade landing position	
CURRENT SAC START X	x coordinate of the saccade starting position	
CURRENT SAC START Y	y coordinate of the saccade starting position	
CURRENT SAC ANGLE	direction of saccade (we didn't use)	
target final height	target final height	
target final width	target final width	
target final x	x coordinate of target final position	
target final y	y coordinate of target final position	
target initial height	target initial height	
target initial width	target initial width	
target initial x	x coordinate of target initial position	
target initial y	y coordinate of target initial position	
scene height	scene height	
scene width	scene width	
initialx	adjusted x coordinate of initial target position (see formula)	
initialy	adjusted y coordinate of initial target position (see formula)	
distance T1 from end of first saccade pixels		
finalx	adjusted x coordinate of target final position	
finaly	adjusted y coordinate of target final position	
distance T2 from Fix1 pixels		
saccade distance		
distance T1 from end of first saccade deg		
distance T2 from Fix1 deg		
distance T2 from centre, pixels		
distance T2 from centre, deg		
initial target area deg		
final target area deg		
target initial height in deg		
target initial width in deg		
target final height in deg		
target final width in deg		
gaze_conting_worked	did target move during the first saccade?	
target_side	did target appear on left or right half of scene	
target_altitude	did target appear in top or bottom half of scene	
target_eccentricity	how far from the centre did target appear	

sacrpt w messages.xlsx: The raw report output is in the sheet labelled “test sacrpt w messages”. It has some computed columns added. The period of the trial from which the report was drawn (the IP) was the entire trial.
Name of column	Meaning	
RECORDING_SESSION_LABEL	participant indicator	
TRIAL_INDEX	trial identifier	
CURRENT_SAC_INDEX	saccade identifier	
CURRENT_SAC_DURATION	duration of the saccade	
CURRENT_SAC_END_TIME	end time of the saccade	
CURRENT_SAC_START_TIME	start time of the saccade	
CURRENT_SAC_MSG_TEXT_1	message displayed with the saccade	
NEXT_FIX_MSG_TEXT_1	message displayed in the first fixation after the saccade	

TrialRptJustCond.xlsx: This file was used to check how counterbalancing worked.
Name of column	Meaning	
RECORDING_SESSION_LABEL	participant indicator	
INDEX	trial identifier	
trial_type	final location type: likely, unlikely or implausible	
preview	was there a scene preview before the name of the target was revealed?	
image_id	name of the image with the target in the initial likely location	
initial_image	name of the image with the target in its initial position	
condition	what counterbalancing condition did the trial fall into	

Trial_rpt_from_scene_onset.xlsx: The raw report output is in the sheet labelled “trial_rpt_from_scene_onset”. It has some computed columns added. The period of the trial from which the report was drawn (the IP) was the time at which the scene first appeared with the target in its initial position to the response.
Name of column	Meaning	
RECORDING_SESSION_LABEL	participant indicator	
INDEX	trial identifier	
trial_type	final location type: likely, unlikely or implausible	
prevNY	was there a scene preview before the name of the target was revealed?	
initial_image	name of the image with the target in the initial likely location	
AVERAGE_FIXATION_DURATION	mean fixation duration during the trial	
BLINK_COUNT	how many times did the participant blink	
DURATION	duration of the trial (including preview and presentation of target name)	
FIXATION_COUNT	number of fixations made	
IP_DURATION	duration from scene onset to response	
scene_height	height of picture	
scene_width	width of picture	
target_final_x	x coordiate of final target location	
target_final_y	y coordiate of final target location	
target_initial_x	x coordiate of initial target location	
target_initial_y	y coordiate of initial target location	
target_altitude	did target appear in top or bottom half of scene	
target_eccentricity	how far from the centre did the target appear	
target_side	did target appear in left or right half of scene	
gaze_conting_worked	did the target move during the first saccade?	
acc2deg	was there a fixation that landed within 2 deg of the target