PSY 120 1st Edition Lecture 3Outline of Last LectureI. Scientific Method: Steps 1-5 II. Types of Psychological Research a. Descriptive b. Correlational c. Experimental III. Terms to KnowIV. Ethical ResearchV. Psychology and You Outline of Current LectureI. The Nervous System a. What is it? b. Characteristics of the Nervous system c. Electrochemical transmissions II. Nervous System Pathways a. Afferent Nerves b. Efferent Nerves c. Neural Networks III. Primary Nervous System Divisions a. Central Nervous System (CNS) b. Peripheral Nervous System (PNS) i. Somatic Nervous System ii. Autonomic Nervous System 1. Sympathetic NervousSystem a. Stress 2. Parasympathetic Nervous System IV. Cellsa. Neurons b. Glial Cells c. Structure These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.d. Neural Impulse V. Synapses and Neurotransmitters a. What are they? b. Neurochemical Messengers VI. Studying the BrainCurrent LectureI. Nervous System- a. The study of the Nervous System is neuroscience and the people who study it are called neuroscientists. The Nervous System is an electrochemical communication system. It is the way the body communicates with the brain. b. There are three characteristics primarily that the nervous system is knownfor. i. Complexity: There are billions of cells working together tocommunicate effectively and control your bodies actions. ii. Integration: The nervous system pulls together many types of information such as the senses we all possess to create a message andsends it to the brain. iii. Adaptability: The brain and nervous system work together to overcome the constantly changing environments around us and make the necessaryadjustments for the body’s survival. This ability to adjust that the brain possesses is called plasticity. c. Electrochemical transmission is what occurs between the brain and the nervous system in order to process information. This processing is done by the movement of electrical impulses down a neuron (nerve cell). At the end of the neuron the impulse is transferred to another neuron using chemicals. II. Nervous System Pathways a. Afferent nerves are the sensory nerves that bring information from theenvironment to the brain and spinal cord using sensory receptors. b. Efferent nerves are the motor nerves which carry information from the brainand spinal cord telling your muscles and glands to do things. c. Neural networks can carry information through their networks of cells tointegrate sensory input and motor output. III. Primary Nervous System Divisions a. The central nervous system (CNS) is made up of the brain and spinal cord and is the primary way of carrying messages from the brain to the rest of the body and is where most of the body’s cells are
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