{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

psych_0116 - 2nd week Homunculus Sematosensory...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1/16/09 2 nd week Homunculus Sematosensory cortex (Parietal Lobe) Motor cortex (Frontal Lobe) Measuring Brain Activity Electroencephalographs & Magnetoencephalographs ( EEGs and MEG s) record electrical and magnetic activity. Positron emission tomography (PET) uses radioactivity from chemicals injected into the bloodstream. A machine picks up areas in the brains where the radioactivity go to. Functional magnetic resonance imaging (fMRI) uses magnetic detectors to measure amount of oxygen in areas of the brain. Other structures in the brain The hypothalamus (2)= eating, thirst, sleep, temperature, hormonal levels, and motivated behavior The amygdale (2)= crucial for emotional processing The hippocampus (2)= critical for memory, sensitive to high fever, alcohol Spinal cord Both reflex and voluntary responses are conducted through the spinal cord A reflex is a rapid, automatic response originating in the spinal cord A voluntary response originates in the brain and travels through the spinal to the muscles
Background image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}