Methods of Studying the Brain

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Presentation transcript:

Methods of Studying the Brain Mr. Koch AP Psychology Forest Lake High School

Clinical Observation Study effects of accidents/brain damage (oldest way of studying) Strokes Traumatic Injury Tumor Lesion

Clinical Observation Phineas Gage Frontal lobotomy

Electrical Stimulation Note effect of weak electrical currents on behavior Can be used on humans or animals

Electroencephalograph (EEG) Electrodes measure electrical waves sweeping across surface of the brain

Brain Scans CAT (or CT Scan) MRI PET fMRI TMS

CAT (CT) Scan Computerized Axial Tomography Cross-section X-ray pictures of the brain Can reveal brain damage

MRI Magnetic Resonance Imaging Aligns atoms in brain, then disorients them, measures detectable signals as they move back into place Gives detailed picture of soft tissues

PET Scan Positron Emission Tomography

PET Scan

fMRI Functional MRI

TMS Transcranial Magnetic Stimulation Newer method – has been used in treatment of depression

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