PSYC 1001 Lecture 9: DETAILED PDF LEC NOTES - CARLETON UNI - ROBIN LANGERAK
Lecture 9 10 Psychology PSYC 1001B SENSATION PERCEPTION READING: CHAPTERS 3, 4, 5 PARTA COMMUNICATION ORGANIZATION IN THE NERVOUS SYSTEM BIOLOGICAL BASIS OF BEHAVIOUR Chapter 3 contains eight main sections 1 . Communication N.System 5. Laterality (localization) 2. Organization N. System 6. Endocrine System 3. Brain Imaging 7. Heredity 4. Brain Behaviour 8. Evolution of Behaviour Chapter 3 contains eight main sections 1 . Communication Organization of the Nervous System 2. The Brain Behaviour, Localization, Brain Imaging 3. Endocrine System, Heredity, Evolution of Behaviour Learning Outcomes Understand the hardware of the brain and how it supports necessary processes in the brain and body Explain how the brain is directly tied to behaviour and the techniques we use to demonstrate the connection Connect behaviour to the evolution of our species HARDWARE OF THE BRAIN Neurons: brain cells that facilitate all processes by communicating via networks. They receive and integrate information then send it along. Glial cells are also important for communication in the brain and support the nutrient needs of neurons. Neurons have 3 major components: Soma: the cell body Dendrites: branches that receive signals Axon: branches that transmit signals Myelin sheath: insulating coating Terminal buttons: secrete neurotransmitters Synapse: gap where signals are sent to next neuron Neurons transmit signals from one to the next along specific pathways to carry out various functions Note that many neurons leave the brain to communicate with muscles and other tissues The brain has ~100 billion neurons Think of all the combinations of of neurons and pathways! So how does it work?