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11/5/10 1 Senses vibra/on & flu4er Senses vibra/on & flu4er Senses slow pushing Senses prolonged pressure Senses temperature & pain The Pacinian Corpuscle

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Page 1: The Pacinian Corpuscle...11/5/10 4 Several factors, physiological and psychological, can influence pain percepon: Age Brain circuitry generally degenerates with age, so older people

11/5/10

1

Sensesvibra/on&flu4er

Sensesvibra/on&flu4er

Sensesslowpushing Sensesprolongedpressure

Sensestemperature&pain

ThePacinianCorpuscle

Page 2: The Pacinian Corpuscle...11/5/10 4 Several factors, physiological and psychological, can influence pain percepon: Age Brain circuitry generally degenerates with age, so older people

11/5/10

2

Page 3: The Pacinian Corpuscle...11/5/10 4 Several factors, physiological and psychological, can influence pain percepon: Age Brain circuitry generally degenerates with age, so older people

11/5/10

3

Sensesvibra/on&flu4er

Sensesvibra/on&flu4er

Sensesslowpushing Sensesprolongedpressure

Sensestemperature&pain

Page 4: The Pacinian Corpuscle...11/5/10 4 Several factors, physiological and psychological, can influence pain percepon: Age Brain circuitry generally degenerates with age, so older people

11/5/10

4

Severalfactors,physiologicalandpsychological,caninfluencepainpercep/on:Age‐‐Braincircuitrygenerallydegenerateswithage,soolderpeoplehavelowerpainthresholdsandhavemoreproblemsdealingwithpain.Gender‐‐Researchshowsthatwomenhaveahighersensi/vitytopainthanmendo.Thiscouldbebecauseofsex‐linkedgene/ctraitsandhormonalchangesthatmightalterthepainpercep/onsystem.Psychosocialfactorscouldbeatwork,too‐‐menareexpectednottoshoworreporttheirpain.Fa*gue‐‐WeoOenexperiencemorepainwhenourbodyisstressedfromlackofsleep.Memory‐‐Howwehaveexperiencedpaininthepastcaninfluenceneuralresponses(memorycomesfromthelimbicsystem).

I="InhibitoryInterneuron";P="Projec/onNeuron"‐=inhibi/on(blocking);+=excita/on(ac/va/on)


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Corrupon Percepon Study - amchamksv.org

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Everything Secret Degenerates 2004

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Pacinian representations of fine surface texture · 2017. 8. 29. · The investigators found that the vibrating surface tended to be perceived as rougher than the (otherwise identical)

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DataDrivenLanguageLearning:** LearnerProficiency ... · DataDrivenLanguageLearning:** LearnerProficiency,Performance,and Percepon! Nina*Vyatkina* UniversityofKansas!! Humboldt-Universität

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 · Epidermis Dermis Nociceptor (pain) Pacinian corpuscle (pressure, vibration) Free nerve endings (pain, temperature, touch) Meissner corpuscle (touch, pressure)