PSYCH 1XX3 Chapter Notes - Chapter 6.3: Midbrain Tectum, Red Nucleus, Substantia Nigra
31 Jan 2017
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Module 6. 3 neuroscience ii (the hindbrain & the midbrain) The brain consists of three distinct regions: hindbrain, midbrain, forebrain. The hindbrain connects the brain to the spinal cord. Regulates breathing, digestion, and heart rate: pons. Has role in movement, auditory perception and emotional processing: reticular formation. Has roles in arousal and motivation, circadian rhythm, and posture & balance: cerebellum. Evolutionarily, these structures are the oldest parts of the brain and are found in some form in nearly every vertebrate species. Involved in the regulation of vital bodily functions. The midbrain is a relatively small region that lies between the hindbrain and the forebrain and processes perception, arousal, and motor control. Consists of two major subdivisions: tectum. Further contains two primary structures related to perception and action: Thought to be involved in eye movements and visual reflexes. Thought to be involved in auditory integration: tegmentum. Red nucleus which contributes to motor control.
