Hello;
I am new to the dFC but I was going to use it to analyse my data. I have a task that includes 6 conditions, each trial takes 18s where, during the last 12s of this 18s, participants needed to make a decision (a binary response) and press a key. I have 6 runs. Now, I want to know how the functional connectivity is changed during each of these conditions. TR= 0.655. I understand that functional connectivity needs to be calculated for a long enough duration of a task, so, dynamic connectivity is feasible for experiments in which the task duration is long enough (e.g., resting state).
My questions:
1) How can I do that for my task and conditions (that is not long, each condition 18/0.655 slices only), if possible at all?
2) CONN provides this "estimated dynamic connectivity" that gives me connectivity map for each slice. This is exactly what I need, I just have to label it with my onset times and do my analyses. How this estimation is calculated? What confuses me is that how any measure for dependency between regions (e.g., correlation) can be even calculated for a single slice?
3) Is there any standard method (tool) I can use to make all of these easier?
Note, I need the difference between conditions.
BTW: one group of people (healthy adults). I am using CONN 16a, will upgrade soon to 17c though.
I am new to the dFC but I was going to use it to analyse my data. I have a task that includes 6 conditions, each trial takes 18s where, during the last 12s of this 18s, participants needed to make a decision (a binary response) and press a key. I have 6 runs. Now, I want to know how the functional connectivity is changed during each of these conditions. TR= 0.655. I understand that functional connectivity needs to be calculated for a long enough duration of a task, so, dynamic connectivity is feasible for experiments in which the task duration is long enough (e.g., resting state).
My questions:
1) How can I do that for my task and conditions (that is not long, each condition 18/0.655 slices only), if possible at all?
2) CONN provides this "estimated dynamic connectivity" that gives me connectivity map for each slice. This is exactly what I need, I just have to label it with my onset times and do my analyses. How this estimation is calculated? What confuses me is that how any measure for dependency between regions (e.g., correlation) can be even calculated for a single slice?
3) Is there any standard method (tool) I can use to make all of these easier?
Note, I need the difference between conditions.
BTW: one group of people (healthy adults). I am using CONN 16a, will upgrade soon to 17c though.