Touch & Taste/smell

Taste buds

Taste receptor cell in mouth.

Gustation

sensation of taste

6 sense of tastes

Sweet, sour, bitter, salty, umami, oleogustus

Olfaction

sense of smell

Olfactory lab

areas of brain located above sinus cavity and below frontal lobes that receive information from olfactory receptor cells.

Emotions and memories

Smell goes to the olfactory bulb connected to amygdala(emotion) and hypocampus(memories)

Role of smell in taste

• Survival behavior: Detects danger such as smoke smell, rotton food

• Interaction of taste comes from smell.

• Goes to the limbic system affecting emotion, memory, and motivation

Kinisthetic sense 

Sense of the location of body parts in relation to the ground and each other. 

Vestibular sense

Sensations of movement, balance, and body position

Sensory Conflict Theory

Explanation of motion sickness when the info from eyes conflicts with info form vestibular senses:

-Ex: dizness, nausea

Pain receptors

Visceral Pain, Large nerve somatic pain, Small nerve somatic pain

Visceral Pain

Stomach is full or hurts

Large nerve somatic pain

Bodies warn system for injury

Small nerve somatic pain

Reminder of injury to prevent further injury

Gate control theory

In the spinal chord controls pain transmissions: when the gate is open pain travels freely. When closed pain is blocked.

Phantom Limb (Pain disorder)

50 to 80 percent with amputations experience sensations of burning, shooting pain, pins and needles where the limbs used to be. 

CIPA

Rare genetic disorder;

Congenital Analgesia

No pain sensation,

Endorphins

Neurotransmitters produced by the brain and released by pituitary gland