1. Brain imaging research

2. Features of all methods
PET excellent spatial resolution
fMRI poor temporal resolution
EEG poor spatial resolution
MEG excellent temporal resolution

3. Features of all methods
Meyer-Lindernberg, A. From maps to mechanisms through neuroimaging of schizophrenia. Nature, 468:

4. odour taste WORD tactile tone Basic introduction to ERPs
ERP … event-related potential
result of processed raw EEG signal (electroencephalography)
The event represents a controlled independent variable
The potential represents the measured dependent variable
odour
taste
WORD
tactile
tone
stimulus

5. An actual ERP

6. 0ms
0ms
0ms
0ms

7. Rohes Signal
gefiltert
Gemitteltes Signal
gefiltert
0ms
0ms
1000ms
1000ms

8. Gemittelte Signale
gefiltert
1000ms
0ms

9. Basic EEG introduction
EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain
Hans Berger
• first human EEG in 1924
• invented the electroencephalogram
Brain potentials from his 16 year old son Klaus

10. More history
1934/35: Confirmation by the labs of Adrian, Jasper, and Davis
1939: Single-trial ERPs reported by Pauline & Hallowell Davis
: Sensory ERPs recorded with primitive methods
1962: First publication of computer-averaged ERPs by Galambos
© S. J. Luck. All Rights Reserved. May be used for nonprofit educational purposes if this copyright notice is included. Permission must be obtained from the copyright holder(s) for any other use.

11. Basics of Neurophysiology (where does an EEG signal come from?)
Magnification for microscopic vision
Portion of Figure 5.2 reprinted from Luck, S. J., & Girelli, M. (1998). Electrophysiological approaches to the study of selective attention in the human brain. In R. Parasuraman (Ed.), The Attentive Brain (pp ). Cambridge, MA: MIT Press. © MIT Press. This material may be used for nonprofit research and education purposes only, and it may not be reprinted or distributed in any form including print and electronic forms.
Other content: © S. J. Luck. All Rights Reserved. May be used for nonprofit educational purposes if this copyright notice is included. Permission must be obtained from the copyright holder(s) for any other use.

12. Basics of Neurophysiology (where does an EEG signal come from?)
Portion of Figure 5.2 reprinted from Luck, S. J., & Girelli, M. (1998). Electrophysiological approaches to the study of selective attention in the human brain. In R. Parasuraman (Ed.), The Attentive Brain (pp ). Cambridge, MA: MIT Press. © MIT Press. This material may be used for nonprofit research and education purposes only, and it may not be reprinted or distributed in any form including print and electronic forms.
Other content: © S. J. Luck. All Rights Reserved. May be used for nonprofit educational purposes if this copyright notice is included. Permission must be obtained from the copyright holder(s) for any other use.

13. Different faces of EEG

14. Other methods to record brain activity
Positron Emission Tomography (PET)
Functional Magnet Resonance Imaging (fMRI)
Magnetoencephalography (MEG)