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Dazzle reflex is a type of reflex blink where the eyelids involuntarily blink in response to a sudden bright light ( glare ). Neurological pathways for the dazzle reflex involve subcortical pathways, such as the supraoptic nucleus and superior colliculus.
Cortical damage, particularly cerebral lesions, can cause loss of the menace reflex while leaving the other blink reflexes, such as the dazzle reflex, unaffected. [1] [3] The presence or absence of the menace reflex, in combination with other reflexes, indicates a locus of damage.
The photic sneeze reflex (also known as ACHOO syndrome, a contrived acronym for Autosomal-dominant Compelling Helio-Ophthalmic Outburst) is an inherited and congenital autosomal dominant reflex condition that causes sneezing in response to numerous stimuli, such as looking at bright lights or periocular (surrounding the eyeball) injection.
A reflex blink is not necessarily a conscious blink either; however it does happen faster than a spontaneous blink. Reflex blink may occur in response to tactile stimuli (e.g., corneal, eyelash, skin of eyelid, contact with eyebrow), optical stimuli (e.g. dazzle reflex, or menace reflex) or auditory stimuli (e.g., menace reflex).
A list of reflexes in humans. Abdominal reflex. Accommodation reflex — coordinated changes in the vergence, lens shape and pupil size when looking at a distant object after a near object. Acoustic reflex or attenuation reflex — contraction of the stapedius and tensor tympani muscles in the middle ear in response to high sound intensities.
The startle reflex is a brainstem reflectory reaction (reflex) that serves to protect vulnerable parts, such as the back of the neck (whole-body startle) and the eyes (eyeblink) and facilitates escape from sudden stimuli. It is found across many different species, throughout all stages of life.
In biology, a reflex, or reflex action, is an involuntary, unplanned sequence or action and nearly instantaneous response to a stimulus. The simplest reflex is initiated by a stimulus, which activates an afferent nerve. The signal is then passed to a response neuron, which generates a response.
USS West Mahomet in dazzle camouflage, 1918. Dazzle camouflage, also known as razzle dazzle (in the U.S.) or dazzle painting, is a family of ship camouflage that was used extensively in World War I, and to a lesser extent in World War II and afterwards.
Axon reflex regulates vasodilation, or the extra blood flow to target tissues. Axon reflex allows muscles to contract in the shortest amount of time possible by regulating the signal conduction in the neuromuscular junction.
Bekhterev–Mendel reflex. Bezold–Jarisch reflex. Biceps reflex. Blood shift (diving) Blushing. Brachioradialis reflex. Brain's reflex. Breathing. Brissaud's reflex.