Neuroanatomy

Question 1

Activities of the PCC

Answer 1

“Self-related processing of tasks” (with input from mPFC

Question 2

Activities of the PCC

Answer 2

Social judgment, moral judgement, guilt

Question 3

Activities of the PCC

Answer 3

craving; lesions of PCF (and insula) lead to lack of craving or interest in smoking

Question 4

Activities of the PCC

Answer 4

activated more for “prevention goals” (keeping bad things from happening) - but not by the actual thought of the bad thing - as opposed to promotion goals (making good things happen);

Question 5

Activities of the PCC

Answer 5

cogitation, rumination, neurotic-ism?; “getting caught up in” “biting the hook”

Question 6

Activities of the PCC

Answer 6

psylocibin attenuates connection between it and mPFC (reconnects to m to dlPFC) - leading to “egolessness”;

Question 7

Activities of the PCC

Answer 7

a node of the DMN

Question 8

subgenual and vACC

Answer 8

We measured the physiological and brain
changes at rest before, during, and after 5 days of IBMT and relaxation training. During and after training, the IBMT group showed significantly better physiological reactions in heart rate,
respiratory amplitude and rate, and skin conductance response (SCR) than the relaxation control. Differences in heart rate variability (HRV) and EEG power suggested greater involvement of the autonomic nervous system (ANS) in the IBMT group during and after training. Imaging data demonstrated stronger subgenual and adjacent ventral anterior cingulate cortex (ACC) activity in the IBMT group. Frontal midline ACC theta was correlated with high-frequency HRV, suggesting control by the ACC over parasympathetic activity. These results indicate that after 5 days of training,
the IBMT group shows better regulation of the ANS by a ventral midfrontal brain system than does the relaxation group.
www.pnas.org/cgi/doi/10.1073/pnas.0904031106