1. Statistical Parametric Mapping
Will Penny
Wellcome Trust Centre for Neuroimaging,
University College London, UK
CMIC & Stat Sci, UCL, Oct

2. Statistical Parametric Mapping
Statistical parametric map (SPM)
Image time-series
Kernel
Design matrix
Realignment
Smoothing
General linear model
Statistical
inference
Random
field theory
Normalisation
p <0.05
Template
Parameter estimates

3. Visual Working Memory + + + ENCODING MAINTENANCE PROBE
1) No retention (control condition): Discrimination task +
2) Retention I (Easy condition): Non-configural task +
3) Retention II (Hard condition): Configural task +
1 sec
3 sec
5 sec
5 sec
ENCODING
MAINTENANCE
PROBE

4. MEG activity during delay period in 4-8Hz
band (theta) predicts memory performance

5. Weakly Coupled Oscillators

6. Hippocampal
source
Occipital
source
Frontal
source
Hipp
Occ
IFG 1 2 3 4 5 6 7
Master-
Slave
Partial
Mutual
Entrainment
Total
Mutual
Entrainment

7. Bayesian Model Comparison
LogEv
Model

8. Memory
0.99
0.65
0.13
f=5.7Hz
f=5.7Hz
IFG
Occ
0.00
0.03
0.03
0.17
Memory
Hipp
f=6.0Hz
0.03