She always suffered from first-night nerves. The team held their nerve and went on to win. Clusters of cells that respond to more complex patterns of visual information. The nerve that connects the inner ear with the brain. They influence mood, muscle movement, heart rate, and many other functions. He couldn't find the nerve to ask her out. Methods: Seventy normal Indian children aged 5-17 years presenting to the Pediatric Clinic were included in this observational cross-sectional study. Psychology Definition of OPTIC NERVE: the second cranial nerve, that transports the axons of retinal ganglion cells and continues from the retina … along with the brain form the central nervous system (CNS) and transmits information to and from the body and brain. Depolarization is the reversal of charges in a nerve cell that causes it to fire (the positive region becomes negatively charged and vice versa). Psychology Definition of OLFACTORY NERVE: the first cranial nerve, that carries sensory fibers regarding the sense of scent. See more. When you feel something, it is because of the electrical signals sent by nerves firing up to your brain and back. While neurons have a lot in common with other types of cells, they’re structurally and functionally unique. directs messages to sensory receiving areas in cortex, transmits to medulla. From Longman Dictionary of Contemporary English. Consequently, the fibers are covered with myelin produced by oligodendrocytes rather than the Schwann cells of the peripheral nervous system. The 12 pairs of cranial nerves are traditionally abbreviated by the corresponding Roman numerals. This process happens over and over to carry the information all around the body. AP Psychology Unit 4: Sensation and Perception Extra Definitions. These organs can be divided into two systems: the central nervous system (CNS) and the peripheral nervous system(PNS). Neurotransmitters are chemical messengers in the nervous system. Thalamus. Parasympathetic nervous system definition is - the part of the autonomic nervous system that contains chiefly cholinergic fibers, that tends to induce secretion, to increase the tone and contractility of smooth muscle, and to slow heart rate, and that consists of a cranial and a sacral part. Psychology Definition of OPTIC NERVE: the second cranial nerve, that transports the axons of retinal ganglion cells and continues from the retina on to the optic chiasm. In gross anatomy, the nervous system can be divided into distinct organs, these being stations through which the neural pathways cross. Sequential processing by two or more processing units. Note: A nerve impulse occurs when a stimulus exceeds a certain threshold resulting in … In humans 12 pairs are attached to the brain and 31 pairs to the spinal cord. In Everyone's nerves were frayed by the end of the week. Her nerves were stretched almost to breaking point as she waited. These nerve fibers. Psychology Definition of TRIGEMINAL NERVE: the fifth and biggest cranial nerve, that houses both sensory and motor fibers. Clusters of cells that respond to more complex patterns of visual information. All material within this site is the property of AlleyDog.com. Blind spot, small portion of the visual field of each eye that corresponds to the position of the optic disk (also known as the optic nerve head) within the retina. The nerves conduct impulses toward or away from the central nervous mechanism. Serial processing. The next few days would test their nerve to the limit. These organs can be divided into two systems: the central nervous system (CNS) and the peripheral nervous system(… Similarly, the optic nerve is ensheathed in all three meningeal layers (dura, arachnoid, and pia mater) rather th… In Psychology Definition of OLFACTORY NERVE: the first cranial nerve, that carries sensory fibers regarding the sense of scent. 2021 board of directors; 2020 board of directors; 2019 board of directors; 2018 board of directors; 2017 board of directors; mgc calendar; tournaments Help us get better. The nerve that connects the inner ear with the brain. Medical Definition of Neuroplasticity. They accused the government of a loss of nerve. Example: As the auditory nerve reacts to variations … This is defined as partial or total hearing loss due to damage in the inner ear. These include medications such as Elavil®, Tofranil®, nortriptyline or … Privacy Policy - Terms of Service. AP Psychology Unit 4: Sensation and Perception Extra Definitions. nerve in Psychology, psychiatry topic. enables muscle action, learning and memory. Brain stimulation therapy is a procedure that uses electrodes or magnets in the brain or on the scalp to treat some serious mental disorders that do … home; directors. Note: A nerve impulse occurs when a stimulus exceeds a certain threshold resulting in the movement of positively charged … nerve1 /nɜːv $ nɜːrv/ S3 W3 noun 1 → nerves 2 body part [ countable] HB MP. "the theory that the spinal cord contains a neurological ""gate"" that blocks pain signals or allows them to pass on to the brain. Purpose: To determine interocular differences in the retinal nerve fiber layer (RNFL) and optic nerve head (ONH) parameters in a pediatric population using Cirrus high-definition optical coherence tomography (HD-OCT). They influence mood, muscle movement, heart rate, and many other functions. 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