The thalamus is a midline symmetrical structure situated between the cerebral cortex and the midbrain. It is also involved in sensory input and association (Carson & Birkett, 2017; Kinser, 2012). It takes up 2/3 of your brain and comes in at roughly 1 pound in weight. The brain is divided into three main parts: the forebrain, the midbrain, and the hindbrain. In this AP® Psychology crash course review, we will provide a summary of the anatomy and function of the major areas of the brain. Collectively these are called the diencephalon and they are involved in regulating things like the body’s sensory perception, motor functions, and hormones. (Calcarine means "spur-shaped"). Home / 2-Minute Neuroscience Videos / Know your brain articles / Other Articles / Three regions receive information from the sensory organs. The basal forebrain is an important area for acetylcholine production. Forebrain: Sitting on top of the rest of the brain, your forebrain is the largest part of your brain. Different regions of the cerebral cortex perform different functions. The forebrain consists of the Cerebrum, Thalamus and Hypothalamus. When we look at the cerebral cortex, for instance, it's going to be this processing of complex information. The forebrain controls (amongst many other functions) body temperature, reproductive functions, eating, sleeping, and emotional display. The prosencephalon, the mesencephalon (midbrain), and rhombencephalon (hindbrain) are the three primary portions of the brain during early development of the central nervous system. Basal forebrain: area at the front and bottom of the brain that includes the nucleus accumbens, septal nuclei, and several other structures. The cerebral cortex is coordinating information amongst all of the various senses that are coming in. The basal forebrain is a collection of structures located in the subcortical part of the forebrain which are important in the production of acetylcholine, which is then distributed widely throughout the brain. Apart from the cerebrum, the forebrain also contains several small, but highly important structures located towards the centre of the brain and are included in the limbic system. Forebrain Structures The two hemispheres of the cerebral cortex are part of the forebrain (Figure 3), which is the largest part of the brain. The forebrain processes sensory information that is collected from the various sense organs such as ears, eyes, nose, tongue, skin. The forebrain is an area of the brain that is primarily involved in higher order functions that include action and thinking. In the anatomy of the brain of vertebrates, the prosencephalon (or forebrain) is the rostral-most (forward-most) portion of the brain. The functions of the forebrain are wide-ranging, as the area is the largest part of the brain.Also known as the prosencephalon, the forebrain is mostly comprised of the cerebrum, which is divided into two hemispheres.The two main sections of the forebrain, however, are the telencephalon and the diencephalon. Luckily, you stumbled across this ultimate guide to the brain for AP® Psychology that we have prepared for you. The primary visual cortex which receives visual information is located at the back of the brain on the inner surfaces of the cerebral hemispheres____primarily on the upper and lower banks of the Calcarine Fissure. The thalamus has two ends, the anterior and posterior poles, and four surfaces: medial, lateral, superior, and inferior.Nuclei in a given pole or surface regulate specific functions or processing of sensory information and maintain particular connections with parts of the nervous and limbic system. The cerebrum is the biggest part of the brain. 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