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6 results for “fixation duration”
Data supplementing the article "Einhäuser, W., & Nuthmann, A. (2016). Salient in space, salient in time: Fixation probability predicts fixation duration during natural scene viewing. Journal of Vision, 16(11):13, 1-17, doi:10.1167/16.11.13."
<p>These data supplement the article Einhäuser, W., & Nuthmann, A. (2016). Salient in space, salient in time: Fixation probability predicts fixation duration during natural scene viewing. Journal of Vision, 16(11):13, 1-17, doi:10.1167/16.11.13.</p> <p>The data can be used freely for academic purposes, provided the aforementioned reference is appropriately cited.</p> <p>The following files are available for experiment 2 of the article:</p> <p>allData.mat</p> <p>Includes the datamatrix allData with the following columns:</p> <p>1) Line used for analysis in the article (0 - no, 1-yes).<br> Possible reasons for exclusion:<br> a. fixation duration smaller than 50ms or larger 1000ms<br> b. fixation adjacent to a blink (preceding or following)<br> c. fixation outside the image</p> <p>2) ID of observer (1-24)</p> <p>3) ID of condition (1:grayscale, 2: reduced luminance, 3: reduced contrast, 4: equalized luminance, 5: equalized contrast, 6: phasenoise)</p> <p>4) ID of image (48 unique numbers between 1 and 135)</p> <p>5) horizontal eye position</p> <p>6) vertical eye position</p> <p>7) fixation duration in ms</p> <p>8) value of empirical map generated from search condition of experiment 1 at fixated location</p> <p>9) value of empirical map generated from preference condition of experiment 1 at fixated location</p> <p>10) value of empirical map generated from memorization condition of experiment 1 at fixated location</p> <p>11) value of empirical map generated from joining memorization and preference condition of experiment 1 at fixated location</p> <p>12) value of empirical map generated from condition 1 at fixated location</p> <p>13) value of empirical map generated from condition 2 at fixated location</p> <p>14) value of empirical map generated from condition 3 at fixated location</p> <p>15) value of empirical map generated from condition 4 at fixated location</p> <p>16) value of empirical map generated from condition 5 at fixated location</p> <p>17) value of empirical map generated from condition 6 at fixated location</p> <p>18) value of empirical map generated from condition 1 at fixated location leaving out the current observer</p> <p>19) value of empirical map generated from condition 2 at fixated location leaving out the current observer</p> <p>20) value of empirical map generated from condition 3 at fixated location leaving out the current observer</p> <p>21) value of empirical map generated from condition 4 at fixated location leaving out the current observer</p> <p>22) value of empirical map generated from condition 5 at fixated location leaving out the current observer</p> <p>23) value of empirical map generated from condition 6 at fixated location leaving out the current observer</p> <p>24) luminance at fixation</p> <p>25) luminance contrast at fixation</p> <p>26) edge density at fixation</p> <p>27) eccentricity of fixation</p> <p> </p> <p>usedData.Rdata</p> <p>- for all lines that are used for analysis (allData(:,1)==1) a field in an R dataframe is created, which contains the following fields (for details, see description of matlab file above):</p> <p>obsNum: the ID of the observer (1-24)</p> <p>condNum: the ID of the condition (1-6)</p> <p>imgNum: the ID of the image (48 unique numbers between 1 and 135)</p> <p>fixDur: fixation duration</p> <p>LUM, LCG, ED, ECC: luminance, contrast, edge density and eccentricity at fixation</p> <p>empMapFromSearch, empMapFromPref, empMapFromMem, empMapFromJoint: values of empirical maps generated from data of experiment 1 (search, preference, memorization task as well as combination of the latter two) at fixation</p> <p>empMapFromC1 through empMapFromC6: value of empirical map generated from condition 1 through 6 at fixated location</p> <p>empMapFromC1loo through empMapFromC6loo - value of empirical map generated from condition 1 through 6 at fixated location leaving out the current observer</p> <p>x,y - coordinates of fixation</p> <p> </p> <p>modelsFigure7.R - computes all models for figure 7 of the aforementioned article (Note: depending on your system, this can take substantial time; depending on the version of the lme-package results may deviate slightly from those given in the paper)</p> <p>modelsFigure8.R - computes all models for figure 8 of the aforementioned article (Note: depending on your system, this can take substantial time; depending on the version of the lme-package results may deviate slightly from those given in the paper)</p> <p> </p>
Data from: Effects of fixatives and storage duration on avian sperm morphology
<p><span>Sperm cells are variable both within and among species. To be able to accurately measure sperm cells and understand their function, it is important that sperm cells are preserved in a manner that maintains their structural integrity. </span><span>Formalin is a widely used fixative and storage medium for sperm cells, but few studies have examined the effect of fixation and long-term storage on their morphological integrity. Ethanol is also a common fixation and storage agent for tissue samples, and here we examine if fixation and storage in formalin or ethanol alters sperm cell size and structural integrity. We found no significant effects of the fixation process on fresh sperm cells fixed in formalin or ethanol. Further, there were no </span><span>consistent length changes in sperm cells stored in formalin or ethanol over a period of 227 days, or in sperm cells stored in formalin for three years. A comparison across 13-14 years of storage time showed a small but significant reduction in sperm cell length of 0.93%. Furthermore, sperm cells initially fixed in formalin remained quite stable in dry storage on glass slides for a minimum of six months (we found a mean reduction in sperm cell length of 0.18% after six months). The proportion of sperm cells with head damage was, however, much higher for samples stored in ethanol than for those stored in formalin. Overall, 70% of sperm cells had acrosome damage in ethanol versus only 3% in formalin. Finding intact sperm cells for measuring length therefore required greater effort in ethanol samples than in formalin samples. Our findings indicate that use of sperm cells from long-term storage for the study of sperm morphometrics is justified for either fixative, although formalin clearly preserves the sperm cells better. </span></p>
Data from: Effects of fixatives and storage duration on avian sperm morphology
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Dataset supplementing Einhäuser, W., Atzert, C., & Nuthmann, A. (2020). Fixation durations in natural scene viewing are guided by peripheral scene content. Journal of Vision.
<p>These files supplement the publication</p> <p>Einhäuser, W., Atzert, C., & Nuthmann, A. (2020). Fixation durations in natural scene viewing are guided by peripheral scene content. Journal of Vision.</p> <p><br> The files fixationsByImg_Exp1.mat, fixationsByImg_Exp2.mat and saccadesByImage_Exp2.mat are Matlab (The MathWorks, Inc.) data files that contain the data as described below. To exemplify their usage, the functions figure2.m through figure5.m output the paper’s data figures. All functions were tested using Matlab version 9.6.0 (R2019a) on Windows 10 and on Ubuntu 14.04.</p> <p>All files can be used free of charge for scientific purposes, provided the aforementioned publication is appropriately cited.</p> <p><br> fixations_Exp1.mat contains the variables describing each fixation of experiment 1</p> <p>dFixByImAndCon - fixation duration in ms<br> tFixByImAndCon - start time of fixation relative to image onset in ms<br> xFixByImAndCon - x position on the screen<br> yFixByImAndCon - y position on the screen</p> <p>Notes:<br> - All variables have the dimensions subject (20) x image (60) x colorCondition (2 - grayscale/color) x contrastCondition (5) x fixation number in trial (50).<br> - dFixByImAndCon(:,:,:,:,1), etc. denotes the first fixation _ending_ after image onset, so tFixByImAndCon(:,:,:,:,1) will be negative.<br> - missing data are filled by NaN<br> - x,y position is relative to the screen (1920x1080), not relative to the image, which was presented in the screen center</p> <p> </p> <p>fixations_Exp2.mat contains the variables describing each fixation of experiment 2</p> <p>dFixByImAndCon - fixation duration in ms<br> tFixByImAndCon - start time of fixation relative to image onset in ms<br> xFixByImAndCon - x position on the screen<br> yFixByImAndCon - y position on the screen<br> isModByImAndCon - fixation on unmodified (0) or isoluminant (1) patches<br> transByImAndCon - codes type of transition<br> patch n -> patch n+1<br> unmodified -> unmodified 00 (0)<br> unmodified -> isoluminant 01 (1)<br> isoluminant -> unmodified 10 (10)<br> isoluminant -> isoluminant 11 (11)</p> <p>Notes:<br> - All variables have the dimensions subject (20) x image (60) x condition (4 - unmodied, isoluminant, center-isoluminant, center-unmodified) x fixation number in trial (50).<br> - isModByImAndCon is 1 if the fixated region is isoluminant, and 0 if unmodified, nan for fixations outside the image.<br> - otherwise notation as in fixations_Exp1.mat</p> <p><br> saccades_Exp2.mat contains the variables describing each saccade of experiment 2</p> <p>xFromByImAndCon / yFromByImAndCon - saccade starting coordinate<br> xToByImAndCon / yToByImAndCon - saccade starting coordinate</p> <p>Notes:<br> - variable dimensions as in fixations_Exp2.mat<br> - coordinates refer to screen (1920x1080), not to image</p> <p> </p> <p> </p>
Raw data -- Analysis of variance for fixation duration ,number of fixations ,pupil dilation ,saccadic amplitude of participants at different levels.
<p>原始数据 -- 分析不同水平参与者注视持续时间、注视次数、瞳孔扩张、扫视幅度的方差。</p>
Arch Bars vs. IMF (Intermaxillary Fixation) Screws: Cost Effectiveness Based on Time Duration of Device Placement.
ClinicalTrials.gov study NCT01876979. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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