Ð2Ð
¥ Signal = Measurable response to stimulus
¥ Noise = Components of measurement that interfere with detection of signal
¥ Statistical detection theory:
H Understand
relationship between stimulus & signal
H Characterize noise statistically
H Can then
devise methods to distinguish noise-only measurements
from signal+noise measurements, and assess
their reliability
H Methods and
usefulness depend strongly on the assumptions
² Some
methods are ÒrobustÓ against erroneous assumptions,
and some are not
Data Analysis
Philosophy