IMotions Unpack Human Behavior
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- 1. The Cerebrum
- 3. The Brainstem
- 4. The Limbic System
| 2. The Cerebellum The Cerebellum (meaning “little brain“) has two hemispheres which have highly folded surfaces. The cerebellum contributes to regulation and control of fine movements, posture and balance. It receives input from sensory systems of the spinal cord and from other brain areas and integrates these inputs to fine-tune motor activity. 1. The Cerebrum The Cerebrum or cortex is the forward-most portion and largest part of the human brain. It is generally associated with higher brain functions such as conscious thought, and sensory processing. The cerebrum consists of two hemispheres which are connected through a mass of nerve cells making up the corpus callosum. The cerebral cortex has a highly convoluted topography of sulci (furrows) and gyri (ridges). If you could spread out all of these furrows and ridges, you would get a total cerebral brain surface area of about 2500 cm² – about the size of a 50 x 50 cm pillow case (Peters & Jones, 1984). 8 Confidential © 2019 Redistribution is not permitted without written permission from iMotions 3. The Brainstem The Brain Stem is the lower and oldest part of the brain, comprising the midbrain, pons and medulla. Often called the reptilian brain, it controls autonomic body processes such as heartbeat, breathing, bladder function and sense of equilibrium. Basically, the brain stem controls everything that you want to automatically work without having to consciously think about. 4. The Limbic System The Limbic System is often referred to as the emotional brain. It is buried deep within the brain and constitutes an evolutionarily old structure. The limbic system includes the thalamus, hypothalamus and amygdala. The limbic system plays a central role in arousing fight-or-flight situations, such as job interviews, Black Friday shopping trips or dates with your future partner. The cerebral cortex is further divided into four sections, the lobes. While there are right and left counterparts for each lobe, there’s subtle differences between the hemispheres. Within the popular imagination, the right hemisphere is associated with creativity and imagination, while the left hemisphere is associated with logical abilities such as numerical and spatial cognition. However, this association is phasing out as scientific research is coming up with more intricate imaging technologies and analysis techniques, which allow for deeper insights than ever before. Differences do exist between the hemispheres, but they are more complex than the previous picture paints. A basic division is still made between 4 lobes: Occipital, temporal, parietal, and frontal 9 Confidential © 2019 Redistribution is not permitted without written permission from iMotions Download 5.03 Mb. Share with your friends:
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