IB Psych 9/23/16 The Brain Today’s Agenda: BLOA HW: Turn in: Nothing Take out : Planner Writing Implement Notes… Today’s Learning Objectives: I can describe the areas and function of the brain. Today’s Agenda: BLOA The Brain HW: Learning Outcomes (best have it printed…) CRA 2.1-2.4 (by Monday)
HOW DOES OUR BIOLOGY AFFECT OUR BEHAVIOR? Learning Outcome: Outline principles that define the biological level of analysis. HOW DOES OUR BIOLOGY AFFECT OUR BEHAVIOR?
The nervous system is divided into the peripheral nervous system (PNS) and the central nervous system (CNS) THE NERVOUS SYSTEM
The PNS consists of The CNS consists of the sensory neurons running from stimulus receptors that inform the CNS of the stimuli motor neurons running from the CNS to the muscles and glands - called effectors - that take action. The CNS consists of the spinal cord brain
Central Nervous System (CNS): Spinal Cord & Brain
CNS: controls behavior & coordinates movement between/among all different parts of the body Brain protected by the skull, spinal cord protected by vertebrae/ spinal column but this does NOT mean they are safe from injuries
Is fight or flight response a reflex? What is a reflex? it can occur without going through the brain to process. an automatic (otherwise called involuntary) neuromuscular action elicited by a defined stimulus. Is fight or flight response a reflex? Yes: according to what criteria? No: according to what criteria?
THE BRAIN: most important part of life…
Our brain has 4 lobes Frontal (Freud) Parietal (his Pants) https://www.youtube.com/watch?v=X7l1IDynIFg Frontal (Freud) Parietal (his Pants) Occipital (Off) Temporal (Tore) Cerebellum Brain Stem
Frontal Lobe- Parietal Lobe- Occipital Lobe- Temporal Lobe- reasoning, planning, parts of speech, movement, emotions, and problem solving Parietal Lobe- movement, orientation, recognition, perception of stimuli Occipital Lobe- visual processing Temporal Lobe- perception and recognition of auditory stimuli, memory, and speech 4 Lobes
HEMISPHERES Our brain has 2 hemispheres: a LEFT and a RIGHT. Our LEFT controls the RIGHT side of our body, and vice-versa.
HEMISPHERES
Our Brain’s Main Structures 2 hemispheres, 4 lobes…but there’s more: Cerebellum "little brain", is similar to the cerebrum in that it has two hemispheres and has a highly folded surface or cortex. This structure is associated with regulation and coordination of movement, posture, and balance. Our Brain’s Main Structures Brainstem vital life functions such as breathing, heartbeat, and blood pressure Medulla, pons, midbrain Limbic System referred to as the "emotional brain", is found buried within the cerebrum. Like the cerebellum, evolutionarily the structure is rather old
ALL OF THIS DEPENDS ON…
NEURONS
A specialized cell transmitting nerve impulses; a nerve cell NEURON A specialized cell transmitting nerve impulses; a nerve cell Axon Dendrites Myelin sheath Nucleus Cell body Axon terminal
DRAW THE STRUCTURE BELOW IN YOUR NOTES. TRACE THE PATHWAY USING ARROWS WITH A DIFFERENT COLOR PEN
How do neurons work? http://www.youtube.com/watch?v=FR4S1BqdFG 4&feature=related http://www.youtube.com/watch?v=ifD1YG07fB8 &feature=related until :20 https://www.youtube.com/watch?v=nvXuq9jR WKE https://www.youtube.com/watch?v=FVo04B0_ 5R4