Thigmotaxis is a biological term that refers to an organism's response to touch. The IPA phonetic transcription of this word is /θɪɡmoʊˈtæksɪs/. The "th" sound at the beginning of the word is pronounced as a voiceless dental fricative, while the "g" in the middle of the word is pronounced as a voiced velar stop. The "taxis" suffix indicates a movement or orientation towards a stimulus. Thus, thigmotaxis refers to an organism's directional response to tactile stimuli.
Thigmotaxis is a behavioral response exhibited by certain organisms, particularly invertebrates, in which they prefer or seek out physical contact with surfaces or objects in their environment. The term is derived from the Greek words "thigma," meaning touch, and "taxis," meaning movement or orientation. Thigmotaxis can be observed in various organisms such as insects, worms, and even some plants.
The response of thigmotaxis is usually directed towards solid and stable surfaces, providing the organism with a sense of security, stability, and spatial orientation. It is often displayed as a tendency to explore and move along or around surfaces, actively seeking out contact with them. Thigmotaxis can also involve the organism clinging or attaching itself to surfaces for various purposes, such as protection, feeding, or reproduction.
Thigmotaxis is believed to be an innate behavior or instinctive response that aids in the survival and navigation of these organisms within their habitats. By consistently contacting solid objects or surfaces, they can establish boundaries and better perceive their surroundings. Additionally, thigmotaxis may also provide sensory feedback through mechanoreceptors, allowing the organism to gather information about their environment or potential prey.
The study of thigmotaxis is important in the fields of animal behavior and ecology, as it helps to understand the way organisms interact with their environment and how they navigate and perceive their surroundings based on physical stimuli.
A form of barotaxis, noting the reaction of plant or animal protoplasm to contact with a solid body.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word thigmotaxis is derived from two Greek roots: thigmo meaning touch and taxis meaning arrangement or order. Thus, thigmotaxis literally translates to arrangement or order by touch.