### act | group action | due process:

Hearing
* All hearing is is the ability to feel vibrations.
* are modality
  - opportunity
  - sessions
* can be both of the ear and the mind
  - return after some months in some, but others remain permanently deaf
* comes by the soul.
* critical part of a child's development.
* crucial sense in water, where vision is restricted.
* depends on a series of events that change sound waves in the air into electrical signals.
* has a major impact on learning and speaking.
* helps children learn about the world and communicate
  - to read, appreciate music and to receive warnings of approaching harm
  - with language, social, and emotional development
* involves a set of intricate brain processes
  - the detection of mechanical inputs, the vibrations produced by sound waves
* is acute by three or four weeks and kittens learn to determine what sounds mean
  - for noise
  - in some owls for prey locating
* is all about the vibrations of sound as they hit our ears
* is also present at birth and responses to loud sounds have been recorded in the womb
  - well developed but is used primarily for detecting predators
  - an important sense for most animals
  - birds' second most important sense and their ears are funnel-shaped to focus sound
  - both physical and spiritual
  - connected with space
  - extraordinarily acute, as is eyesight - even in daylight
  - highly developed and important to their survival
  - impaired in up to one half of all elderly persons
  - important to most birds
* is measured in decibels, which is the degree of loudness required to hear the sound
  - units called decibels
  - more internal than sight
  - naturally complex and stimulation varies when the fetus changes positions in the uterus
  - restored in some children who experience hearing problems
* is the act of perceiving audible sounds with the ear and passive act
  - area that the devil usually attacks first
  - detection of sound
  - experience of what presents itself through the ears, of sound
* is the first sense to develop completely in babies
  - stage of listening
  - step to listening
  - mechanical, physiological, non-selective process of receiving sound waves by the ear
  - most important sense to many marine mammals
  - neural perception of sound energy
  - perception of certain vibrations of bodies which give rise to sound waves
  - physical process whereas listening is the mental process
  - sense of sound that comes into our ears
  - thought to be the last of the senses to fade
  - usually somewhat compromised during an ear infection
  - vital to language development
  - vitally important to the development of oral language skills
  - well developed and moles twitter and squeal while they feed or fight
* plays an important role in social and emotional development.
* rabbit's most vital sense, hence the large upright ears.
* represents the primary sense organ - hearing happens involuntarily.
* requires neural processing that sorts and integrates the rich fabric of natural stimuli.
* rhymes increases a child's awareness of the sounds that make words similar.
* seems to be the keenest sense in hedgehogs.
* sense that is often taken for granted.
* sounds in words is the best predictor of problems learning early reading skills.
* starts with the outer ear.
* takes place in our brain.
+ Sense, The sensory system of animals:

### act | group action | due process | hearing:

Binaural hearing
* requires less volume, which makes listening more comfortable and less tiring.
* works like a stereo sound system.

Good hearing
* helps create a good sense of balance.
* is especially important when learning to speak.
* is essential for babies to learn to talk
  - to the social and intellectual development of infants and young children
  - extremely important for the development of speech and language skills
  - provided by two large external ear canals at the back of the head