Retinotopy - 8bars with blank

Dear Vistalab, I have some trouble to run 8 bars with blank stimuli. I have the toolbox of vistadisp -- master. When I run the 8 bars with blanks, it presents 2 directions of the bars and then give blank of 12s, repeats it 4 times. However it cuts the half of the second direction abruptly because of the blanks. Let's say whole duration is 192s (180s stimuli + 12s prescan). It gives 22.5 for the first direction and 10.5s for the second and presents 12s blank. So the second half (22.5s) is divided between the bar and the blank. Without blank, the script works perfectly. I've checked the script, makeRetinotopyStimulus_bars.m for the timing of the blanks but fail to change it.

If you have time to tell me which part of the script I should focus on, that would be great. thank you in advance, Ceren

Could you try running this script, and then posting somewhere the parameters file (saved on your desktop) and the image matrix (save in vistadisp/Applications/Retinotopy/standard/storedImagesMatrices/)?

params = retCreateDefaultGUIParams;

params.saveMatrix = '8 bars images.mat'; ret(params)

The parameters file will have a name with the date and time and look something like this: 20150318T210358.mat The image matrix will be called '8 bars images.mat'

The stimulus should be comprised of 8 sweeps (4 cardinal and 4 diagonal) with half of each diagonal replaced by a blank.

Jon

On Wed, Mar 18, 2015 at 7:52 AM, CerenB notifications@github.com wrote:

Dear Vistalab, I have some trouble to run 8 bars with blank stimuli. I have the toolbox of vistadisp -- master. When I run the 8 bars with blanks, it presents 2 directions of the bars and then give blank of 12s, repeats it 4 times. However it cuts the half of the second direction abruptly because of the blanks. Let's say whole duration is 192s (180s stimuli + 12s prescan). It gives 22.5 for the first direction and 10.5s for the second and presents 12s blank. So the second half (22.5s) is divided between the bar and the blank. Without blank, the script works perfectly. I've checked the script, makeRetinotopyStimulus_bars.m for the timing of the blanks but fail to change it.

If you have time to tell me which part of the script I should focus on, that would be great. thank you in advance, Ceren

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4.

Jonathan Winawer Assistant Professor of Psychology and Neural Science

New York University 6 Washington Place New York, NY, 10003 (212) 998-7922 (phone) (212) 995-4018 (fax) jonathan.winawer@nyu.edu http://psych.nyu.edu/winawer/

I ran the script and am attaching the '8 bars images.mat' and 20150319T112317.mat output.

The script works as you mentioned, 8 sweeps (4 cardinal and 4 diagonal) with half of each diagonal replaced by a blank of 12s. However I think that is problematic since I want to map all visual field. Because with this stimuli now I'm not mapping half on the diagonal sweep. So half of the diagonal directions' will not be presented and cannot be mapped in the visual cortex. I thought the script was designed in a way, 1 cardinal (full), 1 diagonal (full), and 12 second blank at the end. I might be missing something.

thank you for the help, Ceren

On Thu, Mar 19, 2015 at 2:09 AM, Jonathan Winawer notifications@github.com wrote:

Could you try running this script, and then posting somewhere the parameters file (saved on your desktop) and the image matrix (save in vistadisp/Applications/Retinotopy/standard/storedImagesMatrices/)?

params = retCreateDefaultGUIParams;

params.saveMatrix = '8 bars images.mat'; ret(params)

The parameters file will have a name with the date and time and look something like this: 20150318T210358.mat The image matrix will be called '8 bars images.mat'

The stimulus should be comprised of 8 sweeps (4 cardinal and 4 diagonal) with half of each diagonal replaced by a blank.

Jon

On Wed, Mar 18, 2015 at 7:52 AM, CerenB notifications@github.com wrote:

Dear Vistalab, I have some trouble to run 8 bars with blank stimuli. I have the toolbox of vistadisp -- master. When I run the 8 bars with blanks, it presents 2 directions of the bars and then give blank of 12s, repeats it 4 times. However it cuts the half of the second direction abruptly because of the blanks. Let's say whole duration is 192s (180s stimuli + 12s prescan). It gives 22.5 for the first direction and 10.5s for the second and presents 12s blank. So the second half (22.5s) is divided between the bar and the blank. Without blank, the script works perfectly. I've checked the script, makeRetinotopyStimulus_bars.m for the timing of the blanks but fail to change it.

If you have time to tell me which part of the script I should focus on, that would be great. thank you in advance, Ceren

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4.

Jonathan Winawer Assistant Professor of Psychology and Neural Science

New York University 6 Washington Place New York, NY, 10003 (212) 998-7922 (phone) (212) 995-4018 (fax) jonathan.winawer@nyu.edu http://psych.nyu.edu/winawer/

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4#issuecomment-83243207.

Ceren Battal M.Sc Neural and Behavioural Sciences, IMPRS PhD Student CIMeC- Center for Mind/Brain Sciences University of Trento via delle Regole, 101 Mattarello (TN) - 38100 – ITALY Tel +39 461-282753 Email: ceren.battal@unitn.it

Dear Ceren,

It sounds like the code runs as intended. Since the bar passes all locations in the visual field (up to a certain eccentricity), all of these locations can be mapped by a retinotopic model. The model does not take into account the direction of motion of the bar. There are no locations that 'cannot be mapped'.

If you would like to design a different stimulus, I would recommend using the experiment called 'Experiment from file', in which you store an image matrix with the images you would like to use, and a parameters file which includes the timing and order of the images to be shown. This is an option in the drop down menu of the ret GUI.

Jon

On Thu, Mar 19, 2015 at 6:31 AM, CerenB notifications@github.com wrote:

I ran the script and am attaching the '8 bars images.mat' and 20150319T112317.mat output.

The script works as you mentioned, 8 sweeps (4 cardinal and 4 diagonal) with half of each diagonal replaced by a blank of 12s. However I think that is problematic since I want to map all visual field. Because with this stimuli now I'm not mapping half on the diagonal sweep. So half of the diagonal directions' will not be presented and cannot be mapped in the visual cortex. I thought the script was designed in a way, 1 cardinal (full), 1 diagonal (full), and 12 second blank at the end. I might be missing something.

thank you for the help, Ceren

On Thu, Mar 19, 2015 at 2:09 AM, Jonathan Winawer < notifications@github.com> wrote:

Could you try running this script, and then posting somewhere the parameters file (saved on your desktop) and the image matrix (save in vistadisp/Applications/Retinotopy/standard/storedImagesMatrices/)?

params = retCreateDefaultGUIParams;

params.saveMatrix = '8 bars images.mat'; ret(params)

The parameters file will have a name with the date and time and look something like this: 20150318T210358.mat The image matrix will be called '8 bars images.mat'

The stimulus should be comprised of 8 sweeps (4 cardinal and 4 diagonal) with half of each diagonal replaced by a blank.

Jon

On Wed, Mar 18, 2015 at 7:52 AM, CerenB notifications@github.com wrote:

Dear Vistalab, I have some trouble to run 8 bars with blank stimuli. I have the toolbox of vistadisp -- master. When I run the 8 bars with blanks, it presents 2 directions of the bars and then give blank of 12s, repeats it 4 times. However it cuts the half of the second direction abruptly because of the blanks. Let's say whole duration is 192s (180s stimuli + 12s prescan). It gives 22.5 for the first direction and 10.5s for the second and presents 12s blank. So the second half (22.5s) is divided between the bar and the blank. Without blank, the script works perfectly. I've checked the script, makeRetinotopyStimulus_bars.m for the timing of the blanks but fail to change it.

If you have time to tell me which part of the script I should focus on, that would be great. thank you in advance, Ceren

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4.

Jonathan Winawer Assistant Professor of Psychology and Neural Science

New York University 6 Washington Place New York, NY, 10003 (212) 998-7922 (phone) (212) 995-4018 (fax) jonathan.winawer@nyu.edu http://psych.nyu.edu/winawer/

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4#issuecomment-83243207.

Ceren Battal M.Sc Neural and Behavioural Sciences, IMPRS PhD Student CIMeC- Center for Mind/Brain Sciences University of Trento via delle Regole, 101 Mattarello (TN) - 38100 – ITALY Tel +39 461-282753 Email: ceren.battal@unitn.it

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4#issuecomment-83495964.

Jonathan Winawer Assistant Professor of Psychology and Neural Science

New York University 6 Washington Place New York, NY, 10003 (212) 998-7922 (phone) (212) 995-4018 (fax) jonathan.winawer@nyu.edu http://psych.nyu.edu/winawer/

Oh I see. Thanks!

On Thu, Mar 19, 2015 at 1:26 PM, Jonathan Winawer notifications@github.com wrote:

Dear Ceren,

It sounds like the code runs as intended. Since the bar passes all locations in the visual field (up to a certain eccentricity), all of these locations can be mapped by a retinotopic model. The model does not take into account the direction of motion of the bar. There are no locations that 'cannot be mapped'.

If you would like to design a different stimulus, I would recommend using the experiment called 'Experiment from file', in which you store an image matrix with the images you would like to use, and a parameters file which includes the timing and order of the images to be shown. This is an option in the drop down menu of the ret GUI.

Jon

On Thu, Mar 19, 2015 at 6:31 AM, CerenB notifications@github.com wrote:

I ran the script and am attaching the '8 bars images.mat' and 20150319T112317.mat output.

The script works as you mentioned, 8 sweeps (4 cardinal and 4 diagonal) with half of each diagonal replaced by a blank of 12s. However I think that is problematic since I want to map all visual field. Because with this stimuli now I'm not mapping half on the diagonal sweep. So half of the diagonal directions' will not be presented and cannot be mapped in the visual cortex. I thought the script was designed in a way, 1 cardinal (full), 1 diagonal (full), and 12 second blank at the end. I might be missing something.

thank you for the help, Ceren

On Thu, Mar 19, 2015 at 2:09 AM, Jonathan Winawer < notifications@github.com> wrote:

Could you try running this script, and then posting somewhere the parameters file (saved on your desktop) and the image matrix (save in vistadisp/Applications/Retinotopy/standard/storedImagesMatrices/)?

params = retCreateDefaultGUIParams;

params.saveMatrix = '8 bars images.mat'; ret(params)

The parameters file will have a name with the date and time and look something like this: 20150318T210358.mat The image matrix will be called '8 bars images.mat'

The stimulus should be comprised of 8 sweeps (4 cardinal and 4 diagonal) with half of each diagonal replaced by a blank.

Jon

On Wed, Mar 18, 2015 at 7:52 AM, CerenB notifications@github.com wrote:

Dear Vistalab, I have some trouble to run 8 bars with blank stimuli. I have the toolbox of vistadisp -- master. When I run the 8 bars with blanks, it presents 2 directions of the bars and then give blank of 12s, repeats it 4 times. However it cuts the half of the second direction abruptly because of the blanks. Let's say whole duration is 192s (180s stimuli + 12s prescan). It gives 22.5 for the first direction and 10.5s for the second and presents 12s blank. So the second half (22.5s) is divided between the bar and the blank. Without blank, the script works perfectly. I've checked the script, makeRetinotopyStimulus_bars.m for the timing of the blanks but fail to change it.

If you have time to tell me which part of the script I should focus on, that would be great. thank you in advance, Ceren

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4.

Jonathan Winawer Assistant Professor of Psychology and Neural Science

New York University 6 Washington Place New York, NY, 10003 (212) 998-7922 (phone) (212) 995-4018 (fax) jonathan.winawer@nyu.edu http://psych.nyu.edu/winawer/

— Reply to this email directly or view it on GitHub <https://github.com/vistalab/vistadisp/issues/4#issuecomment-83243207 .

Ceren Battal M.Sc Neural and Behavioural Sciences, IMPRS PhD Student CIMeC- Center for Mind/Brain Sciences University of Trento via delle Regole, 101 Mattarello (TN) - 38100 – ITALY Tel +39 461-282753 Email: ceren.battal@unitn.it

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4#issuecomment-83495964.

Jonathan Winawer Assistant Professor of Psychology and Neural Science

New York University 6 Washington Place New York, NY, 10003 (212) 998-7922 (phone) (212) 995-4018 (fax) jonathan.winawer@nyu.edu http://psych.nyu.edu/winawer/

— Reply to this email directly or view it on GitHub https://github.com/vistalab/vistadisp/issues/4#issuecomment-83536404.

vistalab / vistadisp

Retinotopy - 8bars with blank #4