Instinctive reflex is a common term used in physiology and behavioral sciences. The word instinctive is spelled as /ɪnˈstɪŋ(k)tɪv/, with stress on the second syllable, to show the emphasis on the natural, instinctual response. Whereas, the word reflex is spelled as /ˈriːflɛks/, with stress on the first syllable, to signify the sudden and automatic response triggered by a stimulus. Together, instincts and reflexes work as natural, innate responses for both humans and animals to maintain survival and adapt in their environment.
An instinctive reflex refers to an involuntary and automatic response or reaction that is primarily governed by an individual's innate instincts, without any conscious thought or deliberate decision-making. It is a natural and immediate reaction that occurs as a result of a specific stimulus, designed to ensure the survival and well-being of an organism.
These reflexes are rooted in an individual's genetic makeup, and they are inherent from birth or develop early in life as a result of evolution and adaptation. Instinctive reflexes are universal among individuals of a particular species and often serve as an important defensive mechanism or a means to obtain necessary resources.
Examples of instinctive reflexes include the Moro reflex in infants, where they automatically extend their arms and legs in response to a sudden loud noise or a sudden drop in their position. Another example is the withdrawal reflex, commonly known as the "knee jerk reflex," which causes an immediate and involuntary contraction of the quadriceps muscle in the leg when the patellar tendon is tapped with a reflex hammer.
Overall, instinctive reflexes play a crucial role in an organism's survival by providing quick responses to various stimuli. These reflexes are hardwired into an individual's nervous system and enable rapid actions without the need for conscious thought or decision-making.
The word "instinctive" is derived from the Latin word "instinctus", which means "impulse" or "instigation". It is related to the verb "instinguere", meaning "to incite" or "to stimulate".
The term "reflex" comes from the Latin word "reflectere", which means "to bend back" or "to curve back". This Latin root is composed of "re" meaning "back" and "flectere" meaning "to bend" or "to turn".
When combined, "instinctive reflex" refers to an automatic or involuntary response that is prompted by an innate impulse or natural disposition. The word "reflex" emphasizes the idea of a quick and automatic reaction, while "instinctive" emphasizes the innate and intuitive nature of the response.