Whether the fusiform gyrus is an area of the brain which is specifically for perception of human faces.
2) Explain why this new ROI technique is important for fMRI research.
Results collected from part I were used in order to produce exact ROIs for subjects in the following parts, by outlining the foundations of the faces versus objects test. These ROIs were used for parts II and IIIs tests and analyses. There are a couple of issues with the process of fMRI, one being that it is nearly impossible to have unambiguity in imaging studies with only two or three compared conditions, and by using fMRI researchers aimed to overcome this issue; running a number of tests on subjects in the same cortical region in order to find distinct regions of the cortex …show more content…
The study initially began with 20 subjects, and was reduced to 15 due to excessive motion. For the group leftover, there was no motion correction implemented, which causes uncertainty among the data’s strength, although to combat this it was seen that pilot data pointed towards a stronger significance when averaged across two runs which were identical within a subject.
There was also a technical limitation; recording of behavioural responses was prevented from being collected from subjects in the scanner during an early task. Verification of the task being performed by the subject was managed by experimenters through monitoring of the subject’s responses and the stimulus online while the scan was occurring.
FF area has a very broad reaction to a number of facial stimuli (front-view grey-scale images of the test faces, two-tone versions of the same faces, three-quarter-view grey-scale faces with hair hidden), and there is a chance of a feature within the visuals being considered low-level; this could attribute to an activation of that area happening. Due to a diverse range of control stimuli of faces and non faces however, it has been noted as
2) Explain why this new ROI technique is important for fMRI research.
Results collected from part I were used in order to produce exact ROIs for subjects in the following parts, by outlining the foundations of the faces versus objects test. These ROIs were used for parts II and IIIs tests and analyses. There are a couple of issues with the process of fMRI, one being that it is nearly impossible to have unambiguity in imaging studies with only two or three compared conditions, and by using fMRI researchers aimed to overcome this issue; running a number of tests on subjects in the same cortical region in order to find distinct regions of the cortex …show more content…
The study initially began with 20 subjects, and was reduced to 15 due to excessive motion. For the group leftover, there was no motion correction implemented, which causes uncertainty among the data’s strength, although to combat this it was seen that pilot data pointed towards a stronger significance when averaged across two runs which were identical within a subject.
There was also a technical limitation; recording of behavioural responses was prevented from being collected from subjects in the scanner during an early task. Verification of the task being performed by the subject was managed by experimenters through monitoring of the subject’s responses and the stimulus online while the scan was occurring.
FF area has a very broad reaction to a number of facial stimuli (front-view grey-scale images of the test faces, two-tone versions of the same faces, three-quarter-view grey-scale faces with hair hidden), and there is a chance of a feature within the visuals being considered low-level; this could attribute to an activation of that area happening. Due to a diverse range of control stimuli of faces and non faces however, it has been noted as