Speech production the larynx that then is modified by the vocal tract into different vowels and consonants. However speech production can occur without the use of the lungs and glottis in alaryngeal speech by using the upper parts of the vocal tract. An example of such alaryngeal speech is Donald Duck talk. The vocal production of speech may be associated with the production of hand gestures that act to enhance the comprehensibility of what is being said. The development of speech production throughout an individual's life starts from an infant's first babble and is transformed into fully developed speech by the age
The Instance of the Letter in the Unconscious, or Reason Since Freud The Instance of the Letter in the Unconscious, or Reason Since Freud "The Instance of the Letter in the Unconscious, or Reason Since Freud" () is an essay by the psychoanalyst Jacques Lacan, originally delivered as a talk on May 9, 1957 and later published in Lacan's 1966 book "Écrits". Lacan begins the essay by declaring it to be "situated halfway" between speech and writing. By doing so, he foreshadows both the essay's notorious opacity and its theme: the relationship between speech and language and the place of the subject in relation to both. The paper represents a key moment