Pain

Neurons in area 24b of the rabbit anterior cingulate cortex are activated in response to painful stimuli. Like the nociceptive neurons in the medial thalamic nucleus that innervate the anterior cingulate cortex, area 24b neurons have large receptive fields that are often bilateral. The neurons are specific to nociceptive information, i.e., they are not activated by nonpainful somatosensory stimulation, and they show some specificity to the nature of the painful stimulus. These neurons are also activated during the learning of responses that lead to the avoidance of painful stimuli.

Lesions in the anterior cingulate cortex retard such learning and have been shown to reduce pain sensitivity in monkeys.

Breaking Bulimia

Breaking Bulimia

We have all been there: turning to the refrigerator if feeling lonely or bored or indulging in seconds or thirds if strained. But if you suffer from bulimia, the from time to time urge to overeat is more like an obsession.

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