HEARING AIDS

 

What is a Hearing aid?  

Now a days its an electronic device that is able to makes some sounds louder so that a person with hearing difficulty, can listen,communicate and Participate more fully in daily activities

                For an example think of an assembly,microphone will pickup the sound and it send the amplifier to increase the sound of the original sound,we can hear the sound via a Loud speaker.Same circuit is used inside the hearing aid with lots of modification  

Should we afraid/shy to use a Hearing aid?

Not at all

Why? Because 

• It's Wearable like a spectacle 
• Easy to use
• Improving the hearing & speech comprehension

What is the Main function of a Hearing Aid?

Hair cells are responsible for hearing,They are located deep inside the ear.If any damage Occurs to hair cells,it results in hearing loss.This is when  hearing aid come to action. The role of hearing aids is to amplify sound  vibrations entering the ear. Surviving hair cells detect the larger vibrations and convert them into neural signals that are passed along to the brain. The greater the damage to a person’s hair cells, the more severe the hearing loss, and the greater the hearing aid amplification needed to make up the difference.

**An Audiologist is a trained professional in fitting and dispensing a hearing aid.Kindly consult your nearest Audiologist for hearing related needs**

Hearing aids generally improve the quality of life and will help you

• Get a better relationship with your family
•                 Feel better about yourself
•          Get better mental health
•            Feel more independent and secure
•           More able to participate in social gatherings

           

                                                                       

      A hearing aid consist of

      Microphone
      Receiver
      Amplifier 
      Battery 
      Volume control

Types of Hearing Aid

**More details on my next post **

WHICH ALL SOUNDS ACHIEVED 1st?

Speech Sound Development Chart

Most of the parents complain that there child does not speak or its delayed. Usually child will speak his/her 1st meaningful word by at the age of 1-1.4 years.Word are consist with different sound so lets check out which sounds develop first. 

A i mention above today we are talking about at which particular speech sounds are used at what particular age.Researchers have studied larger groups of children & they summarize what is typical of an average child at a particular age

In this Diagram they mainly talk about the consonants (Speech sounds that is not a vowel) 

Below Speech sounds are given in International Phonetic Alphabet (IPA),but you can understand it with the example given there

References: Templin, M.(1957). Certain language skills in children.Minneapolis:University of Minnesota Press.

AUTISM SPECTRUM DISORDER (ASD)

DEFINITION

"The term ASD/PDD is an umbrella term which refers to a broad group of neurobiological and neurodevelopment disorders.They are characterized by  impairments in social interaction, communication skills and presence of repetitive behaviors"
                                                                -AUTISM SOCIETY OF AMERICA (1995)-

• We can diagnosed a child with autism only after  18 month of age

 Autism is characterized by severe and pervasive impairment in  3 main  areas development

•       Social interaction
•      Communication skills
•      Stereotyped/Unusual behavior

 Severity can be varies on a spectrum of mild to severe

           Social interaction

• Lack of interest in interaction with peers
• Absence of facial expressions and body language
• Poor eye contact with people
• May not demonstrate emotional attachments to family members & friends
• May not seek approval from adults or peer
• Poor play skills(Pretend or social play)

              Communication

• Speech and language are profoundly disordered
• Difficulty expressing basic wants and needs
• Fail to maintain topics of conversation.
• Produces language that is stereotypical,  repetitious or idiosyncratic.
• Echolalia (repetition of another person's spoken words)
• Poor vocabulary development

              Stereotyped/Unusual behavior

• Flapping arms
• Extra attention to particular music or sound
• Problems dealing with changes in routine
• withdraw
• Using objects in unusual ways (toy car,child only play with wheels or any other small object on it)
• No fear of real dangers
• Feeding difficulties(selects foods,refusing certain food textures)

                 CAUSES OF AUTISM 

       Biological

§Genetic cause

§Neurological causes

§Brain lateralization dysfunction

§Brain systems that control arousal

§Dysfunction of other brain mechanism

§Biochemical abnormalitie

Environmental

•doesn't play a role means not yet scientifically proved