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Related Concept Videos

Taste Buds and Receptors01:20

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Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
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The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the...
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Gustation01:43

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Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors by chemical compounds (tastants) dissolved in the saliva. The saliva and filiform papillae on the tongue distribute the tastants and increase their exposure to the taste receptors.
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Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
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Conditioned Taste Aversion01:14

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Conditioned taste aversion, also known as sauce béarnaise syndrome, is a phenomenon in which an individual develops an aversion to a certain food taste following a negative experience, typically illness. This form of aversion is a type of classical conditioning in which the taste of the food (conditioned stimulus, CS) is associated with the experience of illness (unconditioned stimulus, UCS).
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Introduction to Special Senses01:26

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Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
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Taste Preference Assay for Adult Drosophila
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Recognition Without Words: Using Taste to Explore Survival Processing.

Henry L Hallock1, Heather D Garman2, Shaun P Cook3

  • 1Lieber Institute for Brain Development, Johns Hopkins School of Medicine, Baltimore, MD 21205.

Journal of Undergraduate Neuroscience Education : JUNE : a Publication of FUN, Faculty for Undergraduate Neuroscience
|July 11, 2017
PubMed
Summary
This summary is machine-generated.

Recalling tastes is best when imagining survival scenarios, but marketing conditions also improved memory. This study explored taste memory using an adaptive memory paradigm, revealing a robust levels-of-processing effect.

Keywords:
adaptive memoryclassroom demonstrationlevels-of-processingmemoryrecallsurvival processingtaste

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Area of Science:

  • Cognitive Psychology
  • Evolutionary Psychology
  • Neuroscience

Background:

  • Traditional memory studies use word lists, which allow for mnemonic strategies like chunking.
  • The adaptive memory paradigm examines memory through an evolutionary lens, focusing on survival relevance.

Purpose of the Study:

  • To investigate if taste memory recognition is enhanced when acquisition occurs under imagined threat (poisoning).
  • To explore the effectiveness of survival-based processing versus other cognitive tasks on taste recall.

Main Methods:

  • Participants evaluated eight teas under three conditions: toxicity (survival), marketability, or bitterness.
  • Following a filler task, a surprise recognition test involved identifying original teas among novel ones by taste.

Main Results:

  • The survival condition improved taste recognition compared to the bitterness condition.
  • Surprisingly, the survival condition did not outperform the marketing condition in taste recognition.
  • A second experiment failed to support the hypothesis that planning in survival scenarios enhances recognition.

Conclusions:

  • Taste memory recognition exhibits a robust levels-of-processing effect.
  • The study suggests that survival threat does not uniquely enhance taste memory compared to other cognitively engaging tasks.
  • This research introduces a simple method to study taste memory and its adaptive significance.