40 Sentences With "olfactory sense" | Random Sentence Generator

In the 19th century, anatomists hypothesized that our evolving free will stunted our olfactory sense.

However, Goldstein explained that significant improvement does not necessarily mean total recovery of the olfactory sense.

Her book is about the olfactory sense, its huge importance for the dog but also its overlooked role for ourselves.

Even animals, for whom sexual urges are inexorably linked to olfactory sense, don't carry this single-minded pursuit through waking hours.

It will probably also help to have a nose for art at this festival, where the family attractions will include a scent tour of the Met's galleries in honor of this zodiac animal's keen olfactory sense.

From at least the late 19th century, when David Belasco had actors cook and brew coffee on stage to heighten the realism of domestic scenes, to recent efforts to evoke a piney forest or the tang of gunpowder, directors have tried to involve an audience's olfactory sense to intensify their experience.

Lastly, smell influences how food and drink taste. When the olfactory sense is damaged, the satisfaction from eating and drinking is not as prominent.

Most bat species have a good homing ability, the mechanisms of which are still unknown. Unusually for bats, the cave myotis does not have a good homing instinct. Speculation is that bat species' homing ability relies heavily on olfactory sense and vision.E. Lendell Cockrum (1956).

They primarily nest in areas that are centrally located to riparian vegetation and rivers. Unlike other southern passerines that lay small clutches, crimson finches have extremely large clutch sizes. This deviance could be explained by high rates of nest predation by reptiles, which use their olfactory sense to find nests.

Tetrapods exhibit both a main and accessory olfactory system. The main olfactory sense is derived from the more ancient neural system, broadly present across insects and mammals.Smith, T. D., Rossie, J. B., & Bhatnagar, K. P. (2007). Evolution of the nose and nasal skeleton in primates. Evolutionary Anthropology: Issues, News, and Reviews, 16(4), 132-146.

The vomeronasal organ is an auxiliary olfactory sense organ responsible for the detection of pheromones as more than just an odor. Most adult humans possess something resembling this organ, but there is no active function. Humans lack the sensory cells that exist in other mammals needed to detect pheromones beyond a smell. Humans also lack the genetic ability to produce these sensory cells actively.

They rest in dens during inactive times. They have a strong olfactory sense that helps them to detect food.Alaska Species Report- Prince of Wales Flying Squirrel The POW flying squirrel tends to utilize dens in tree cavities or snags for storing food, hiding from predators, and reproduction.USFWS 90-day finding for POW Flying Squirrel They do not spend much time on the ground in order to avoid predation.

The fragrant flowers of Acnistus arborescens, redolent of a rare volatile attractive to honey bees. The flowers of I. arborescens secrete a fragrant compound of rare occurrence (though found also in roses and the flowers of the Amaryllid Narcissus tazetta) called orcinol dimethyl ether or 3,5-Dimethoxytoluene. This volatile is almost undetectable by the human nose, but (as revealed by experiments) readily detectable by the olfactory sense of honey bees.

Both tadpoles and adults have many senses. Studies support a theory that olfactory sense is important to tadpoles of this species. Adult breeding frogs detect breeding ponds by using auditory cues from other frog calls to gauge distance, size of pool, likelihood of predators and numbers as well as breeding condition of other frogs. Sources say frogs use low frequency sound of rain as a cue to emerge from aestivation.

Although the brain has been regarded as very primitive and represents the "lowliest marsupial brain", the olfactory bulbs and the rubercula olfactoria are very well developed. This seems to suggest that the olfactory sense plays an important role in the marsupial moles' life, as it would be expected for a creature living in an environment lacking visual stimuli. The middle ear seems to be adapted for the reception of low-frequency sounds.

Tina works for the Swedish Customs Service and uses her heightened olfactory sense to detect human emotions, including guilt and shame, together with the contraband that the humans are smuggling. She has a strongly Neanderthalic appearance and lives in a secluded house in the woods with Roland, a dog trainer. One day at the border, Tina sniffs out a memory card containing child pornography. Her boss wonders how she knew to look for it.

The flehmen response draws air into the VNO or Jacobson's organ, an auxiliary olfactory sense organ that is found in many animals. This organ plays a role in the perception of certain scents and pheromones. The vomeronasal organ is named for its closeness to the vomer and nasal bones, and is particularly well developed in animals such as cats and horses. The VNO is found at the base of the nasal cavity.

The nasal bone was thick, heavily sculpted, and had a convex profile. It formed a boss (shield) on the middle top of the skull together with the frontal bone. The lower front of the premaxilla (front bone of the upper jaw) was rugose and thickened. A small foramen (hole) was present in the suture between the premaxillae, leading into the nasal cavity, and possibly connected to the Jacobson's organ (an olfactory sense organ).

With World Sensorium and more recent works, Nalls has advanced concepts of aesthetics to consider the olfactory sense over the historically privileged sense of vision. While the visual remains dominant, artists have and are now increasingly working with the sense of smell to produce emotionally and phenomenologically resonant works in the emergent genre of Olfactory Art. Nalls “like many other olfactory artists, uses only natural fragrances and essential oils. “I call it ‘rewilding the mind,’” she says.

The Bloodhound's physical characteristics account for its ability to follow a scent-trail left several days in the past. The olfactory bulb in dogs is roughly 40 times bigger than the olfactory bulb in humans, relative to total brain size, with 125 to 220 million olfactory receptors. Consequently, dogs have an olfactory sense 40 times more sensitive than that of a human.Coren, Stanley How To Speak Dog: Mastering the Art of Dog–Human Communication, 2000, Simon & Schuster, New York.

He is a talented amateur chemist as well. A meta-side effect of his powers coupled with his detective skills is enhanced olfactory sense, allowing him to "smell" when something is "not right", or if a clue or mystery is at hand. This results in a rubbery "nose twitch". Firehawk once told Ralph that the Green Arrow said the nose twitch was not a real thing but rather something he made up to get more press.

Male C. pallida are able detect the pheromones which females release and use them to locate female burrows. When a virgin female is about to emerge from her burrow, she releases a scent that wafts up through the soil and is detected by the antenna of the males. This has led to males developing a very acute olfactory sense. Freshly-killed females have been buried to test whether sound also plays a part in male signaling.

Stimulation of the anterior teats appears to be important in causing milk letdown, so it might be advantageous to the entire litter to have these teats occupied by healthy piglets. Using an artificial sow to rear groups of piglets, recognition of a teat in a particular area of the udder depended initially on visual orientation by means of reference points on the udder to find the area, and then the olfactory sense for the more accurate search within that area.

Once cetaceans evolved from their terrestrial ancestors, the reduction in their olfactory apparatus was primarily clade-specific. Toothed whales (Odontoceti) seem to have lost their olfactory sense completely, whereas Baleen whales have shown partial impairment, expressing about 58% OR pseudogenes in their cluster. Some adult tooth whales express 77% OR pseudogenes and are completely devoid of olfactory structures. This occurrence is analogous to that of the blind Southern marsupial mole, in which mutation of the inter-photoreceptor protein was paired with anatomical degeneration of the eyes.

These mechanisms allow Cornu aspersum to avoid either fatal desiccation or hydration during months of either kind of quiescence. During times of activity the snail's head and "foot" emerge. The head bears four tentacles; the upper two are larger and bear eye-like light sensors, and the lower two are tactile and olfactory sense organs. The snail extends the tentacles by internal pressure of body fluids, and retracts all four tentacles into the head by invagination when threatened or otherwise retreating into its shell.

Although the round dance tells other foragers that food is within of the hive, it provides insufficient information about direction. The waggle dance, which may be vertical or horizontal, provides more detail about the distance and direction of a food source. Foragers are also thought to rely on their olfactory sense to help locate a food source after they are directed by the dances. Western honey bees also change the precision of the waggle dance to indicate the type of site that is set as a new goal.

This contradicts the idea that trained participants can localize both trigeminal stimuli and pure odorants between the two nostrils. Moreover, recently it was shown that naive participants were able to reliably localize pure odorants between the two nostrils. Clearly, if the ability of the olfactory system to extract spatial information from non-trigeminal stimuli turns out to be true, new light could be shed on the extinction phenomena described for odors. The olfactory sense also provides a unique mechanism to test the sensory and representational theories of unilateral neglect.

The direct limbic connection makes the olfactory sense unique. The brain cortical regions are related to the auditory, visual, olfactory, and somatosensory (touch, proprioception) sensations, which are located lateral to the lateral fissure and posterior to the central sulcus, that is, more toward the back of the brain. The cortical region related to gustatory sensation is located anterior to the central sulcus. Note that the central sulcus (sometimes referred to as the central fissure) divides the primary motor cortex (on the precentral gyrus of the posterior frontal lobe) from the primary somatosensory cortex (on the postcentral gyrus of the anterior parietal lobe).

In some dog breeds, such as Bloodhounds, the olfactory sense has nearly 300 million receptors. The large, long pendent ears serve to prevent wind from scattering nearby skin cells while the dog's nose is on the ground; the folds of wrinkled flesh under the lips and neck — called the shawl — serve to catch stray scent-particles in the air or on a nearby branch as the Bloodhound is scenting, reinforcing the scent in the dog's memory and nose. However, not all agree that the long ears and loose skin are functional, some regarding them as a handicap.

Brown rats have acute hearing, are sensitive to ultrasound, and possess a very highly developed olfactory sense. Their average heart rate is 300 to 400 beats per minute, with a respiratory rate of around 100 per minute. The vision of a pigmented rat is poor, around 20/600, while a non-pigmented (albino) with no melanin in its eyes has both around 20/1200 vision and a terrible scattering of light within its vision. Brown rats are dichromates which perceive colors rather like a human with red-green colorblindness, and their colour saturation may be quite faint.

Olfactory information projects predominantly to the ipsilateral hemisphere. Patients with a right hemisphere lesion show left sided neglect in other modalities and fail to respond to the left contralateral nostril, thus the representational theory is supported. It was suggested that since the olfactory sensory pathways to the cerebral hemispheres were not crossed, a neglect should have occurred on the right side if a sensory loss were the cause of neglect. Neglect in olfactory sense is compared with its occurrence in the trigeminal sense, a sense stimulated in the same manner as olfaction (chemically through the nasal passages) but contralaterally innervated.

Minorsky specifically suggests a Tritrophic Hypothesis in which he considers the predators of herbivores in addition to the plants and herbivores themselves. By moving leaves up or down, herbivores become more visible to nocturnal predators in both a spatial and olfactory sense, increasing herbivore predation and subsequently decreasing damage to a plant's leaves. Studies using mutant plants with a loss of function gene that results in petiole growth instead of pulvini found that these plants has less biomass and smaller leaf area than the wild type. This indicates nyctinastic movement may be beneficial toward plant growth.

There is little known about the social and reproductive behavior of these animals, but all evidence seems to suggest that it leads a solitary life. There are no traces of large burrows where more than one individual might meet and communicate. Although it is not known how the male locates the female, it is assumed that they do so using their highly developed olfactory sense. The fact that the middle ear seems to be morphologically suited for capturing low frequency sounds, and that moles produce high pitched vocalizations when handled, indicates that this kind of sound that propagates more easily underground may be used as a form of communication.

Dogs have an olfactory sense 40 times more sensitive than a human's and they commence their lives operating almost exclusively on smell and touch. The special scents that dogs use for communication are called pheromones. Different hormones are secreted when a dog is angry, fearful or confident, and some chemical signatures identify the sex and age of the dog, and if a female is in the estrus cycle, pregnant or recently given birth. Many of the pheromone chemicals can be found dissolved in a dog's urine, and sniffing where another dog has urinated gives the dog a great deal of information about that dog.

The king vulture eats anything from cattle carcasses to beached fish and dead lizards. Principally a carrion eater, there are isolated reports of it killing and eating injured animals, newborn calves and small lizards. Although it locates food by vision, the role smell has in how it specifically finds carrion has been debated. Consensus has been that it does not detect odours, and instead follows the smaller turkey and greater yellow-headed vultures, which do have a sense of smell, to a carcass, but a 1991 study demonstrated that the king vulture could find carrion in the forest without the aid of other vultures, suggesting that it locates food using an olfactory sense.

It is estimated that dogs, in general, have an olfactory sense approximately ten thousand to a hundred thousand times more acute than a human's. This does not mean they are overwhelmed by smells our noses can detect; rather, it means they can discern a molecular presence when it is in much greater dilution in the carrier, air. Scenthounds as a group can smell one- to ten-million times more acutely than a human, and bloodhounds, which have the keenest sense of smell of any dogs, have noses ten- to one-hundred-million times more sensitive than a human's. They were bred for the specific purpose of tracking humans, and can detect a scent trail a few days old.

The specification of sensory organs by proneural genes is a complex process, since they elicit different cellular contexts. For instance, in Drosophila, atonal (ato) can promote the development of chordotonal organs, for the receptors of olfactory sense organs, depending on the imaginal disc in which it is expressed. In Drosophila’s embryogenesis, the proneural gene achaete is expressed in well- determined regions as in the endoderm, being responsible for the formation of particular sensory organs in the adult and larvae. According to Ruíz-Gomes and Ghysen (1993), this expression occurs in two distinct phases: a competent state, in which the proneural gene is expressed in a cell cluster; a determined state, in which a specific cell accumulate high levels of ‘’ac’’ transcripts, originating a neural precursor.

It is possible that the brain is able to distinguish specific odors through spatial encoding, but temporal coding must also be taken into account. Over time, the spatial maps change, even for one particular odor, and the brain must be able to process these details as well. Inputs from the two nostrils have separate inputs to the brain, with the result that, when each nostril takes up a different odorant, a person may experience perceptual rivalry in the olfactory sense akin to that of binocular rivalry. In insects, smells are sensed by sensilla located on the antenna and maxillary palp and first processed by the antennal lobe (analogous to the olfactory bulb), and next by the mushroom bodies and lateral horn.

Comparisons between the scleral rings of several dromaeosaurids (Microraptor, Sinornithosaurus, and Velociraptor) and modern birds and reptiles indicate that some dromaeosaurids (including Microraptor and Velociraptor) may have been nocturnal predators, while Sinornithosaurus is inferred to be cathemeral (active throughout the day at short intervals). However, the discovery of iridescent plumage in Microraptor has cast doubt on the inference of nocturnality in this genus, as no modern birds that have iridescent plumage are known to be nocturnal. Studies of the olfactory bulbs of dromaeosaurids reveal that they had similar olfactory ratios for their size to other non-avian theropods and modern birds with an acute sense of smell, such as tyrannosaurids and the turkey vulture, probably reflecting the importance of the olfactory sense in the daily activities of dromaeosaurids such as finding food.