PSYC 1101

PSYC 1101 - Chelsea Moore History Philosophers-Descartes...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chelsea Moore History: Philosophers - Descartes : dualism -Mind and body are separate -Thus, mind cannot be studied - Hobbes : monism -Mind and body are both physical -Mind can be studied History: Physiologists -Scientific study of bodily processes -Includes sensation and perception - Helmholtz : speed of neural impulses -Fechner: our sensation of stimuli -“Just noticeable difference” (JND) - The smallest stimuli that can be detected Early Psychology -Emerged from intersection of philosophy and physiology -Questions of philosophy… -…Answered with tools of physiology Psychology emerges -Wilhelm Wundt -University of Leipzig, Germany -1879: started a laboratory -Scientific study of the mind -Tool: introspection -Strict laboratory studies The Brain -How is the brain related to behavior? -Wasn’t always thought to be important -Phineas Gage: important case study (had rod speared through his head—injury completely changed his personality). Frontal lobe controls the bad impulses. Helps make mature decisions—keep anger in check and other things that are helpful for good relationships with people -Showed that brain is a “system” -Damage can affect mind and personality -Thus, parts of mind have a physical/biological basis The Neuron -Dendrites receive messages -Axons send messages -Action Potential -Travels through body to brain
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Some connections take place through the spinal cord Neurotransmitters -Chemical messengers that travel from one neuron to the next -Activity can affect behavior -Dopamine: motor behavior -Too little: Parkinson’s -Too much: schizophrenia -Endorphins: -natural opiates -released during exercise -Serotonin: -too little: linked to depression -Selective Serotonin Reuptake Inhibitors (SSRI) Serotonin is normally removed from the synapse by reuptake sites on the presynaptic neuron. SSRIs block the serotonin reuptake sites , allowing serotonin to remain active in the synapse longer. The Brain -Built in layers -Closer to spine… -…basic “life” functions - breathing, heart rate, digestion (these occur by spine) -common with other animals -Closer to skull… -…”higher level” abilities -language, reasoning (skull = thinking) -Things more uniquely human Brainstem -Medulla -heart rate, breathing (e’s) -Pons: sleep, arousal -Cerebellum -coordination (CC) Limbic System (middle part) -Motivation, emotion, memory -Thalamus -sensory relay station -Amygdala -aggression, anger (AAA) -Hippocampus -memory (Hippo remember) Cerebral Cortex -Largest part of brain -Complex cognitive processes -Hemispheres
Background image of page 2
-Control opposite side of body -Lobes -Different specializations Cortex -Penfield—stimulated brains -Sensory areas -Motor areas -Language areas -Brocas’s area (BR/PR) -production -Wernicke’s area -language comprehension, speech Hemispheres -Control opposite side of body -Connected because of a tissue called the Corpus Collosum -Treatment for severe epilepsy Sleep/Wake Cycle -Circadian rhythm -Affected by sunlight -Can be disrupted (jetlag)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 10

PSYC 1101 - Chelsea Moore History Philosophers-Descartes...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online