Final answer:
Deep brain stimulation to the subcallosal cingulate area does have network-wide effects on other brain regions.
Step-by-step explanation:
The statement 'Deep brain stimulation to the subcallosal cingulate area in individuals with chronic and treatment-refractory anorexia nervosa has network-wide effects on other brain regions that did not receive direct stimulation' is TRUE.
Deep brain stimulation (DBS) involves the insertion of small electrodes in specific brain regions. While the subcallosal cingulate area is the target for stimulation in anorexia nervosa patients, the network-wide effects occur because DBS can modulate neurotransmitter release, leading to reshaping of neural circuitries in other brain regions. Therefore, even though these regions do not receive direct stimulation, they are still influenced by the stimulation of the subcallosal cingulate area.