1 / 16

Introduction to Psychology

Introduction to Psychology. Class 8: Neuroscience 1 Myers: 38-51 June 22, 2006. Biological Psychology. A branch of psychology that concerns itself with the links between biology and behavior.

Download Presentation

Introduction to Psychology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Introduction to Psychology Class 8: Neuroscience 1 Myers: 38-51 June 22, 2006

  2. Biological Psychology • A branch of psychology that concerns itself with the links between biology and behavior. • Other terms: Behavioral neuroscientist, neuropsychologist, physiological/bio-psychologist, behavioral endocrinologist etc.

  3. Origins of brain-mind connection • Phrenology (1800) • bumps on skull could reveal mental abilities • Phineas Gage (1848) • Iron rod through skull. Changes in personality • 1990’s decade of the brain: fMRI, PET

  4. The Neuron • PartsDendrites, Body, Axon Hillock, Axon, Myelin sheath, Nodes of Ranvier, Terminal branches, Terminal Buttons, Synaptic cleft • ConceptsAction Potential, Type of signals, Threshold stimulus, All-or-None response

  5. Action Potential • Resting Potential (-70mv) • Depolarization (-50mv threshold) • Action potential • Repolarization (back to neg charge) • Hyperpolarizaton

  6. The Synapse • Cajal • Sherrington • NT • Reuptake • Agonists and antagonists

  7. Neurotransmitters

  8. Overview • NERVOUS SYSTEM 3 types of neurons

  9. Types of Neurons • SENSORY/AFFERENT From the organ to the spinal cord (and brain) • MOTOR/EFFERENT From the spinal cord (and brain) to the organ • INTERNEURONS In between

  10. Autonomic Nervous System(Sympathetic & Parasympathetic) • Internal functioning • E.g., Heartbeat, digestion, • Sympathetic: Fight or flight (adrenalin) • Parasympathetic: Resting and digesting (Back to baseline) (acetylcholine)

  11. The Spinal Cord • The Reflexpathway • Pain reflex • Quadri/Paraplegia Bilateral and depends on level of lesion in the spinal cord • Hemiplegia Unilateral and depends on the location of lesion in brain. Usually caused by stroke.

  12. The Brain • Evolutionarily evolved • Brainstem • Limbic System • Cortex

  13. Brainstem • Medulla • Basic life functions • Reticular Formation • Alertness arousal (anesthetics)

  14. Cerebellum • Cerebellum • Fine motor movements

  15. Thalamus • Atop brainstem • Sensory Relay station • All 5 senses except for smell

  16. Limbic System(all bilateral) • Amygdala • Aggression and fear; processing emotional memories • Hypothalamus • Hunger, thirst, body temperature, sexual behavior • Controls pituitary gland (master gland) which produced hormones • Olds and Milner – pleasure centers • Hippocampus • Memory consolidation (HM, memento)

More Related