Sleep research - human
- sleep onset/offset mechanisms
- falling asleep; unintended and
- voluntary control of sleep parameters;
dreaming time; emotionality in lucid dreams
- sleep deprivation and circadian effects
on mood and performance
- sleep and dreams
From the earliest moments of human thought, people have wondered about
the relationship between waking and sleeping. That fundamental concern
drives my research program here at Brock. As a Sleep Researcher and Psychophysiologist,
most of my studies are theoretically based, aimed at understanding sleep/wake
(S/W) interrelationships at several levels - typically while looking
at electrophysiological, behavioral and subjective indices. Some have
practical implications for simplifying S/W monitoring and identifying
drowsiness during critical task performance (i.e., driving).
What follows is a series of issues we
are addressing in the Brock Sleep Lab these
days: How do CNS control mechanisms change
as we enter and leave sleep? Are there
systematic changes in EEG activity during
the sleep onset process? How about event
related potentials - do they change predictably
before and during sleep? Are behavioral
indices of wakefulness and sleep useful
supplements to physiological measures?
How can this information help us build
better models of sleep?
Do subjective, behavioral and physiological
changes prior to sleep intercorrelate?
What can they tell us about S/W processes?
How closely do simple indices of drowsiness,
like head-nodding, rolling eye movements
and depressed respiratory activity relate
to changes in awareness?
Are there physiological markers for interesting
events during dreaming? Is the lucid dreamer
in a physiologically unique state or does
the lucid dream exist in "normal" REM sleep?
Why ask such questions? Because the relationship
between mind and brain holds the key to
understanding many fundamental psychological
processes and sleep is often an optimal
time to study them. Consider this an invitation
to pose such questions in a well-equipped
research environment where opportunities
for creative research on sleep and related
processes are limited only by your imagination
Ogilvie, R.D. The process of falling asleep. Sleep
Medicine Reviews. Provisionally accepted,
Feb. 2000; final revisions in progress.
Alloway, C.E.D., Ogilvie, R.D., & Shapiro,
C.M. (1999). The electrophysiology of the
sleep-onset period in narcoleptics and
normals. Sleep, 22, 191-203.
Fukuda, K., Ogilvie, R.D., Chilcott, L.,
Vendittelli, A. (1998). The prevalence
of sleep paralysis among Canadian and Japanese
college students. Dreaming, 8, 59-66.
Ogilvie, R.D., & Harsh, J.R. (Eds).
(1995). Sleep Onset: Normal and Abnormal
Processes. Washington D.C.: American