päälakilohkon

The päälakilohko, also known as the parietal lobe, is one of the four major lobes of the cerebral cortex in the human brain. It is situated behind the frontal lobe and above the temporal lobe and cerebellum. The parietal lobe plays a crucial role in processing sensory information from the body, including touch, temperature, pain, and pressure. It is also involved in spatial awareness, navigation, and integrating information from different sensory modalities.

Within the päälakilohko, specific areas are dedicated to different functions. The somatosensory cortex, located at the front of the parietal lobe, receives and processes sensory input from the skin, muscles, and joints. This allows us to perceive the world through touch and proprioception, which is our sense of body position. Further back in the parietal lobe, regions are responsible for processing visual information related to space and movement, contributing to our ability to understand our surroundings and navigate through them.

Damage to the päälakilohko can result in a variety of neurological deficits. Depending on the specific area affected, individuals may experience difficulties with sensation, such as numbness or a loss of touch. Spatial deficits, like hemispatial neglect (where one side of space is ignored) or problems with directional sense, can also occur. Furthermore, damage can impair the ability to perform complex motor tasks that rely on spatial understanding, such as dressing or drawing. The päälakilohko is essential for integrating sensory experiences and forming a coherent perception of ourselves and the world around us.