TOPECTOMY Definition and Context of Topectomy The term topectomy refers to a specific, now largely obsolete, form of psychosurgery developed during the mid-20th century. Classified as a neurosurgical intervention, it involved the precise excision of select, localized regions within the frontal cortex of the brain. Unlike earlier, more destructive procedures like the standard prefrontal lobotomy, […]
Introduction and Definition of the Sulcus Principalis The Sulcus Principalis (SP) represents a foundational anatomical and functional landmark within the primate brain, specifically characterized in non-human primates such as the macaque. Situated prominently within the frontal lobe, the SP serves as a crucial element of the prefrontal cortex (PFC), the region responsible for executive functions, […]
FRONTAL CORTEX The Core Definition of the Frontal Cortex The frontal cortex refers to the most anterior region of the cerebral cortex, encompassing the majority of the frontal lobe. This vast area, situated at the very front of the brain directly behind the forehead, is the epicenter for higher-order cognitive functioning, playing an indispensable role […]