Biomedical subjects

Todd E Feinberg

Publications and source records attributed to Todd E Feinberg.

3 recordsLinked to original sources

PubMed2005

Where in the brain is the self?

Localizing the self in the brain has been the goal of consciousness research for centuries. Recently, there has been an increase in attention to the localization of the self. Here we present data from patients suffering from a loss of self in an attempt to understand the neural correlates of consciousness. Focusing on delusional misidentification syndrome (DMS), we find that frontal regions, as well as the right hemisphere appear to play a significant role in DMS and DMS related disorders. These data are placed in the context of neuroimaging findings.

Awareness↗

PubMed2005

Delusional misidentification.

The Capgras syndrome and other forms of delusional misidentification may be encountered frequently in neuropsychiatric settings. DMS can occur in the presence of idiopathic psychiatric illness, in diffuse brain illness such as dementia, and in focal neurologic disease. In patients who have focal lesions, there is evidence that right hemisphere damage is necessary for the production of DMS. Although DMS is associated with a pattern of neuropsychologic impairments in the domains of memory, perception, and executive function, these impairments alone do not account for the selectivity and delusional nature of DMS. Therefore, other factors such as premorbid psychopathology, motivation, and loss of ego functions may be important in determining which vulnerable patients develop DMS and which do not.

Brain↗

PubMed2002

Hypersexuality after pallidal surgery in Parkinson disease.

OBJECTIVE: To examine the possible association of neuropsychiatric symptoms and pallidal surgery for Parkinson disease (PD). BACKGROUND: Parkinson disease may be accompanied by a variety of psychiatric symptoms. It is important to distinguish these from psychiatric syndromes that are associated with the treatment of PD. METHODS: Case description of a patient with PD and a history of right pallidotomy who developed a psychiatric syndrome, including prominent hypersexuality, after surgical implantation of a deep brain stimulator electrode in the left globus pallidus. RESULTS AND CONCLUSIONS: This case demonstrates that patients receiving antiparkinson medication may be at risk for the development of psychiatric sequelae after pallidal surgery.

Antiparkinson Agents↗