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Sensory information is stored in sensory memory just long enough to be transferred to short-term memory. [1] Humans have five traditional senses: sight, hearing, taste, smell, touch. Sensory memory (SM) allows individuals to retain impressions of sensory information after the original stimulus has ceased. [2]
The main olfactory system detects airborne substances, while the accessory system senses fluid-phase stimuli. The senses of smell and taste (gustatory system) are often referred to together as the chemosensory system, because they both give the brain information about the chemical composition of objects through a process called transduction.
This multisensory integration was necessary for early humans in order to ensure that they were receiving proper nutrition from their food, and also to make sure that they were not consuming poisonous materials. [citation needed] There are several other sensory integrations that developed early on in the human evolutionary time line. The ...
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Neuromodulation exists in the olfactory system and is responsible for neural plasticity and behavioural change in both mammals and insects. [4] In the context of olfactory memory, neuromodulators regulate storage of information in a way that maintains the significance of the olfactory experience. [4]
The Lady and the Unicorn, a Flemish tapestry depicting the sense of smell, 1484–1500. Musée national du Moyen Âge, Paris.. Early scientific study of the sense of smell includes the extensive doctoral dissertation of Eleanor Gamble, published in 1898, which compared olfactory to other stimulus modalities, and implied that smell had a lower intensity discrimination.
The word taste is used in a technical sense to refer specifically to sensations coming from taste buds on the tongue. The five qualities of taste detected by the tongue include sourness, bitterness, sweetness, saltiness, and the protein taste quality, called umami .
The neocortex is greatly enlarged in humans and plays a central role for the cognitive abilities that make us human: language, imagination, memory, emotion, etc.” — Franz Xaver Mittermaier