Parts/lobes of the brain Bullet 1 MT: Nervous system 1
4 Lobes of the Brain Frontal Parietal Temporal Occipital
Frontal Lobe Fxns: reasoning, planning, problem solving, logics, thinking Biggest area of brain Stops developing ~25 years old
Parietal Lobe Fxns: recognizing stimuli, orientation, and recognition
Temporal Lobe Fxns: memory, speech, and auditory stimuli
Occipital Lobe Fxns: visual processing
Important Lines of Brain Central Sulcus: separates frontal and parietal lobes
Important Lines of Brain Lateral fissure: separates temporal and frontal lobes
Important Lines of Brain Longitudinal fissure: separates brain medially
INSIDE OF Brain
Parts of the Brain Brainstem (old reptilian brain) = midbrain, pons, and medulla oblongata Limbic System (old mammalian brain) = thalamus, hypothalamus, amygdala, hippocampus Corpus Callosum
Brainstem: Midbrain, Pons, Medulla Oblongata
Brainstem: Midbrain: -superior end of brainstem -Fxn: eye mvmts, reflexes in pupil Pons: -inbetween midbrain and medulla -Fxn: regulates respiration (breathing) Medulla Oblongata: -inferior end of brainstem; leads into spinal cord -Fxn: heart rate, vomiting, coughing, sneezing, hiccupping, swallowing
Parts of the Brain Brainstem (old reptilian brain) = midbrain, pons, and medulla oblongata Limbic System (old mammalian brain) = thalamus, hypothalamus, amygdala, hippocampus Corpus Callosum
Limbic System Thalamus: -Fxn: relay center; most sensory neurons go here and then they are sent to correct place Hypothalamus: -Fxn: controls sleep/wake cycles, homeostasis, thirst, appetite Hippocampus: -Fxn: memory and learning Amygdala: -Fxn: memory of emotional situations especially fear
Limbic System
Parts of the Brain Brainstem (old reptilian brain) = midbrain, pons, and medulla oblongata Limbic System (old mammalian brain) = thalamus, hypothalamus, amygdala, hippocampus Corpus Callosum
Corpus Callosum Corpus Callosum: -Fxn: neurons cross to other side of brain Ex: left eye sends signal through left hemisphere, through the corpus callosum, to the right hemisphere, to the occipital lobe
Corpus Callosum
Taking sides…. how the two sides process information that is! Left Brain Logical Sequential Rational Analytical Objective Looks at parts Right Brain Random Intuitive Holistic Synthesizing Subjective Looks at wholes
Left Hemisphere processes things more in parts and sequentially recognizes positive emotions Identified with practicality and rationality Understands symbols and representations Processes rapid auditory information faster than the right (crucial for separating the sounds of speech into distinct units for comprehension) is responsible for language development. It develops slower in boys, that is why males usually develop more language problems than females.
Right Hemisphere Recognizes negative emotions High level mathematicians, problem solvers, and chess players use The “non-verbal” side Responds to touch and music (sensory) Intuitive Responsive to color and shape Emotional and originative
Taking sides…. what information the two sides recognize! Left Brain Letters Numbers Words Right Brain Faces Places Objects based on Sousa (1995, p. 88)
Taking sides….take the test! Hemispheric Dominance Inventory Test
Myth of “Right/Left brained” Read article