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The symmetrical tonic neck reflex (STNR) is a primitive reflex that normally emerges during the first month of an infant's life and is diminished by the age of 9–10 months. [1] It is a bridging or transitional brainstem reflex that is an important developmental stage and is necessary for a baby to transition from lying on the floor to ...
The asymmetrical tonic neck reflex (ATNR) is a primitive reflex found in newborn humans that normally vanishes around 6 months of age. It is also known as the bow and arrow or "fencing reflex" because of the characteristic position of the infant's arms and head, which resembles that of a fencer. When the face is turned to one side, the arm and ...
Hering–Breuer reflex — is a reflex triggered to prevent over-inflation of the lung; Hoffmann's reflex — also known as the finger flexor reflex; middle finger and thumb response. Test can indicate both neurological damage and nerve regeneration; often combined with the Babinski reflex test. Jaw jerk reflex
The menace response is one of three forms of blink reflex. It includes the reflexive blinking that occurs specifically in response to the rapid approach of an object. [ 1 ] The menace response comprises blinking of the eyelids , in order to protect the eyes from potential damage, but may also include turning of the head, neck, or even the trunk ...
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An alimentary reflex was established in a dog to a compound stimulus made up of the sound of a whistle and the sound of the tone d sharp of a pneumatic tuning-fork. Both these sounds appeared to the human ear to be of equal intensity, and both when tested separately elicited a secretion of 19 drops of saliva during one minute.
The tonic labyrinthine reflex (TLR) is a primitive reflex found in newborn humans. With this reflex, tilting the head back (extension) while lying on the stomach causes the back to stiffen and even arch backwards, the legs to straighten, stiffen, and push together, the toes to point, the arms to straighten (not bend at the elbows and wrists, and the hands to become fisted or the fingers to curl).
The shock continued until the dog moved into the other compartment. In doing this, the dog was escaping the shock by jumping the barrier into the next room. The dog could avoid the shock completely though by jumping the barrier before the 10 seconds of darkness led to a shock. Each trial worked this way with avoiding the shock as the response.