Stephanie

From Psych 221 Image Systems Engineering
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Background

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To add an image, simply put text like this inside double brackets 'MyFile.jpg | My figure caption'. When you save this text and click on the link, the wiki will ask you for the figure. 


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Materials and Methods

Subjects

Subjects were 19 healthy volunteers.

Memory Task

Figure 1. Morph Stimuli


Figure 2. Task Design

Behavioral Analysis

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fMRI Analysis

MR acquisition

Data were obtained on a GE scanner. Et cetera.

MR Analysis

The MR data was analyzed using mrVista software tools.

Pre-processing

All data were slice-time corrected, motion corrected, and repeated scans were averaged together to create a single average scan for each subject. Et cetera.

PRF model fits

PRF models were fit with a 2-gaussian model.

MNI space

After a pRF model was solved for each subject, the model was trasnformed into MNI template space. This was done by first aligning the high resolution t1-weighted anatomical scan from each subject to an MNI template. Since the pRF model was coregistered to the t1-anatomical scan, the same alignment matrix could then be applied to the pRF model.
Once each pRF model was aligned to MNI space, 4 model parameters - x, y, sigma, and r^2 - were averaged across each of the 6 subjects in each voxel.

Et cetera.

Results

Behavioral Results

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Figure 3. Recognition Confidence by Morph Type


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Figure 4. dprime by Morph Type


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Figure 5. Recognition Confidence by Morph Type & Previous Trial Confidence

fMRI Results

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Coding Regressors

Highpass Filter Cutoff

Conclusions

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References - Resources and related work

References

Software

Appendix I - Code and Data

Code

File:CodeFile.zip

Data

zip file with my data