- The
photic zone (or
euphotic zone,
epipelagic zone, or
sunlight zone) is the
uppermost layer of a body of
water that
receives sunlight,
allowing phytoplankton...
- The
photic sneeze reflex (also
known as
ACHOO syndrome, a
contrived acronym for Autosomal-dominant
Compelling Helio-Ophthalmic Outburst) is an inherited...
-
Photic retinopathy is
damage to the eye's retina,
particularly the macula, from
prolonged exposure to
solar radiation or
other bright light, e.g., lasers...
-
Photic stimulation may
refer to:
Intermittent photic stimulation as
diagnostic procedure Any
stimulation involving photons This
disambiguation page lists...
- In medicine,
intermittent photic stimulation, or IPS, is a form of
visual stimulation used in
conjunction with
electroencephalography to
investigate anomalous...
- The
Purkinje effect or
Purkinje phenomenon (Czech: [ˈpurkɪɲɛ] ;
sometimes called the
Purkinje shift,
often pronounced /pərˈkɪndʒi/) is the
tendency for...
-
divided into
zones based on
depth and the
amount of
light present. The
photic zone
starts at the
surface and is
defined to be "the
depth at
which light...
- less than 1
percent of
sunlight penetrates.
Above the
aphotic zone is the
photic zone,
which consists of the
euphotic zone and the
disphotic zone. The euphotic...
- layer. Day
length and
insolation intensity also
control the
extent of the
photic zone.
Subsurface productivity is
limited by
nutrient availability, as the...
- courtships:
steady glows, flashing, and the use of
chemical signals unrelated to
photic systems.
Chemical signals, or pheromones, are the
ancestral form of ****ual...
