Home » Introduction to Neurohacking In R » What is a wrapper function What is a wrapper function Theme 4 Quiz 4 >>> What is a wrapper function >>> Introduction to Neurohacking In R 1. Question 1 What is a wrapper function? 1 point none of these options a function which “wraps” an image around itself a function that calls other functions to create an image processing pipeline an inhomogeneity correction and registration function =========================================== 3. Question 3 Given the following R code from the lecture: which file will the images be registered to? 1 point 113-01-FLAIR.nii.gz 113-01-PD.nii.gz 113-01-MPRAGE.nii.gz 113-01-T2w.nii.gz =========================================== 5. Question 5 Why is the lapply function used in the following code from the lecture? 1 point the code is incorrect and we should be using an apply statement instead the function lapply is an apply statement for lists; the object outfiles is a list the function lapply is always used with the function fslmask the code is incorrect and we should be using a mapply statement instead =========================================== 2. Question 2 The R function preprocess_mri_within (part of the R package extrantsr) performs which image pre-prcoessing steps? 1 point inhomogeneity correction registration skull stripping all of these options =========================================== 4. Question 4 Given the following R code from the lecture: what should be changed if you wish to do N3 correct rather than N4 correct? 1 point change correction = “N3” to correction = “N4” no changes are necessary as N3 is already being used change correction = “N4” to correction = “N3” change skull_strip = FALSE to skull_strip = TRUE Other Questions Of This Category Which type of registration is performed in this lecture before a nonlinear registrationA pipelineWhich templates are used in this lectureRigid registration has how many degrees of freedomWhy is it appropriate to use rigid registration when performing co registration within a subject longitudinallySymmetric image normalization SyN is a type of nonlinear registrationThe function bias correct is part of which packageThe fslr function fsl_biascorrect calls what function in FSLWhat basic MRI contrasts were discussed in this lessonHow many degrees of freedom does an affine registration haveWhat type of registration are we using to register the baseline and followup T1 volumesFlirt in FSL is a tool for nonlinear registrationWhat does the function ants_regwrite in the R package extrantsr doAfter the registration and interpolation the ROI in our example is still a binary imageWhat type of image format does ANTsR use in R