PSYC 2113 Chapter 1
PSYC 2113 Chapter 1 PSYC 2113
Popular in Intro to Brain and Behavior
Popular in Psychlogy
This 2 page Class Notes was uploaded by Camille Munoz on Monday January 11, 2016. The Class Notes belongs to PSYC 2113 at University of North Carolina - Charlotte taught by Sara Levens in Spring 2016. Since its upload, it has received 61 views. For similar materials see Intro to Brain and Behavior in Psychlogy at University of North Carolina - Charlotte.
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Date Created: 01/11/16
Evolution of the Nervous System 1. Neurons and muscle cells 2. Nerve net - collection of nerve cells 3. Bilateral symmetry 4. Segmentation 5. Ganglia - support cells, unique collections of neuron cells 6. Spinal Cord 7. Brain All animals therefore share a common ancestry o It is a misnomer that we are descended from apes o Actually humans are apes – we are related to modern apes through a common ancestor Think of the website ancestry . com Chordates = animals with a spinal cord and a brain Emergence of complex behavior in chordates is closely related to the evolution of the cerebrum and cerebellum (diagram with fish, frog, bird, and human brains) How Did the Hominid Brain Enlarge? The primate lifestyle o The foraging behavior of primates is more complex than that of other animals Finding fruit is more difficult than eating grass or other vegetation on the ground Need good sensory, spatial, and memory skills Fruit eaters have larger brains Climate and the Enlarging Hominid Brain Evidence suggests each new hominid species appeared after new environments appeared due to climate changes Example: spreading grasslands and fewer trees increased the adaptiveness of an upright posture and tool-building skills Perspective on Brain and Behavior Because all animal species are related, so too must be their brains Because all species of animals are related, so too must be their behavior We can study and understand human behavior and brain function by understanding functions of humans and animals Human versus Animal Behavior What type of behavior is human? What type of behavior is animal? We can trace our lineage by comparing the genes, brains, and behaviors of different animals Brain, Behavior, and Culture Culture = learned behaviors passed from one generation to the next through teaching and learning o We perform many tasks today that our brains were not originally selected for early during evolution The brain is highly flexible o The things that humans did evolve to do contained the elements necessary for adapting to more sophisticated skills o Acquisition of culture was a gradual step-by-step process
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