Methodologies

Please see the powerpoint for today’s content.

Linguistic methodologies

Neuroscientific methodologies

EEG

{Khanna et al., 2015, #88320}

More than 80 years ago, Hans Berger coined the term EEG and for the first time recorded cortical oscillatory activity from the surface of the skull in humans (Berger, 1929). He described the potentiation and emergence of specific brain waves, today referred to as alpha oscillations (8–12 Hz), in posterior brain regions when human subjects were instructed to close their eyes. Since then, numerous studies have explored the association between various cortical frequency bands of delta (1–4 Hz), theta (4–7 Hz), alpha (8–12 Hz), beta (12–28 Hz), and gamma (>30 Hz) oscillations with different behavioral and disease states. Furthermore, due to the stochastic and multidimensional nature of EEG signals, a wide variety of analytical approaches have been proposed to quantify and discover different features of cortical oscillatory activity and the functional roles they serve. One common approach is to consider the EEG signal as a dynamical system that can be described in terms of its state and dynamics. The system state is the combination of all variables that describe the system at any given time t, and the system dynamics describe how the state changes over time.

Summary

References

The next day

Quiz 1, a 10 question multiple-choice quiz on the material in days 2-5.

Come to class having read Auditory transduction and answered the questions.


Last edited Aug 26, 2019