SLTinfo logo

Speech and Language Therapy Information!

Your trusted source for best quality information about speech, language and communication needs. 

Comprehensive information on all aspects of human communication and speech therapy, including speech, language, voice, stuttering and much more.....

Popular Subjects


Speech development, speech disorders, phonetics, phonology, articulation, speech perception...and much more!

Read More


Language development, acquisition, verbal language, syntax, morphology, pragmatics...and more!

Read More


The communication chain, conversation, body language, communication disorders...etc...etc

Read More

Featured Article

Stuttering Problems

There are many stuttering problems for people who stutter. People with an established stutter are aware of the negative effect of repetitions, prolongations, hesitations and blocks on their speech. Their stutter (stammer) may be accompanied by facial tics and uncontrolled body movements. Stuttering can lead to the avoidance of certain activities and to social isolation.

Easy Reading

Latest articles...

Type-Token Ratio

The type-token ratio (TTR) is a measure of vocabulary variation within a written text or a person’s speech. The type-token ratios of two real world examples are calculated and interpreted. The type-token ratio is shown to be a helpful measure of lexical variety within a text. It can be used to monitor changes in children and adults with vocabulary difficulties.

Read More

Language Transmission

Transmission of language (our thoughts, feelings, ideas) is carried out using three main methods: speech, writing and signing.

Read More


Conversation represents the archetypal language use through which people participate in social interactions. This article sets out the major characteristics of conversations. They are highly coordinated, collaborative events. They generally have no more than one person speaking at a time and they proceed without a predetermined cognitive map. They are constructed on a turn-by-turn basis.

Read More


Vocabulary is the collection of words a person or group knows and uses. Different words are used in different modes of communication, such as speaking or writing. Slang, jargon and cant are used for different social functions. The concept of a word family is used to help calculate the size of a person’s vocabulary.

Read More

Time-limited Language Variation

Time-limited language variation means that variations in a speaker’s linguistic choices and pronunciations reflect current social and political fashions and practices. Some linguistic choices are considered to be politically incorrect.

Read More

Semantic Categories

Back in 1973, the linguist Roger Brown identified several categories of meaning that all children seem to express. He called these categories semantic categories, which literally means ‘meaning categories’. We will consider four of these: (1) AGENT, (2) OBJECT, (3) ACTION, and (4) LOCATION.

Read More

Lengthening Utterances with ‘And’

Using ‘and’ as a connector is one of the most pervasive ways children extend their utterances beyond the Two and Three Word Stages. It is used creatively for a variety of reasons. Between 25-35 months at least four functions develop: additive, temporal, causal and adversative. There is a cumulative effect to using these functions, each function being dependent upon the function that precedes it.

Read More

Linguistic Performance and Linguistic Competence

Linguistic competence is an abstract, internalized ability that allows us to reject certain utterances as ungrammatical and the ability to interpret grammatical utterances that we have never heard before. In contrast, linguistic performance is the behavior of producing actual, authentic utterances.

Read More