Here is an abstract relating to speech development (influence of infant feeding 
methods) that is interesting in reading:
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?
cmd=Retrieve&db=PubMed&list_uids=4508379&dopt=Abstract

N Z Med J. 1972 Jul;76(482):28-31.
The effects of infant feeding on speech quality.

PIP: In an effort to examine retrospectively the influence of bottle feeding 
compared with breast feeding, a speech survey was carried out on 131 5- and 
6-year-old European boys and girls from 2 schools in Putaruru, New Zealand, 1 
state and the other parochial. Speech assessments were all made before 
information was gathered on the feeding regime in order to avoid any 
possibility of bias. Each child was interviewed alone for a period of 6-40 
minutes. An assessment of his/her speech was made under the following 
headings: articulation; tonal quality; and fluency. Speech defects such as 
substitutions, omissions and intrusions, denasalization and positive nasalization 
were analyzed and recorded phonetically on each child's record form. Notes 
were also made regarding the effect of missing teeth or malocclusion, auditory 
perception, substandard speech, and tonal quality-phonatory defects. There 
was a distinct relationship between breast feeding and clarity of speech in the 
male. Breast feeding was associated with improved tonal quality in both male 
and female children with a more marked improvement in the case of the male. 
Improved speech was associated with improved reading ability. The feeding 
regime was found to have no effect on a child's confidence. The dramatic 
effect of breast feeding on the development of speech and reading in boys as 
revealed in this study suggests that the natural breast feeding method 
accelerates the rate of maturation of the male infant. 

             ***********************************************

Archives: http://community.lsoft.com/archives/LACTNET.html
Mail all commands to [log in to unmask]
To temporarily stop your subscription: set lactnet nomail
To start it again: set lactnet mail (or [log in to unmask])
To unsubscribe: unsubscribe lactnet or ([log in to unmask])
To reach list owners: [log in to unmask]