Chapter 37 Mapping cerebral sites for emotion and emotional expression with direct cortical electrical stimulation and seizure discharges
Year: 1996
Type: book-chapter
Abstract: This chapter reports on results obtained by examining human emotions and their expression through two unique windows: direct cortical electrical Stimulation in conscious subjects, and stimulation caused by seizure foci. It focuses on new data obtained with the cortical stimulation technique. Direct cortical electrical stimulation as administered in this study provides one type of window into the question of the organization of systems involved in the emotions in the brain. It has several major advantages in this regard over several other approaches: it gives data from humans directly, rather than non-human primates or other animals; it allows subjective reporting of phenomena that must be assessed indirectly in non-human species; and it represents in some regards a direct probe of neurobiologic mechanisms. However, direct cortical electrical stimulation does have several caveats with its use in this manner. Some of these are apparent from prior work; some are evident from this study. Direct cortical electrical stimulation is thought to have two major types of effects on neural regions: Stimulating or “positive” effects, and “negative” or “functional lesion” effects. Both stimulating and “lesional” effects could conceivably be local, in the same region as the stimulated electrodes, or more remote.
Source: Progress in brain research
Institution: Johns Hopkins University
Language: English
Subfield: Cognitive Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: hybrid
OpenAlex ID: W1572532029