Introduction to Communication Sciences and Disorders - Notes

Nature and scope of communication disorders

Definition: A communication disorder is any impairment in the exchange of information that deviates from what might be considered normal. It can involve isolated impairments in speech or hearing, or impairments in both domains.
Severity and impact: The nature may range from mild to severe, and the impact on a person’s ability to communicate can be profound regardless of measured severity.
Prevalence and importance: A communication disorder is one of the most common types of disabilities worldwide. When communication fails, misunderstandings occur, leading to frustration, worry, or anger. The focus of the material is on situations where speaking and listening are impaired and on the professions that help individuals with communication disorders.
Global language context: The most widely used language in the world and its approximate speaker counts discussed in the text:
- Mandarin: more than 1.2\times 10^9 speakers
- Spanish: more than 7\times 10^8 speakers
- English: about 5\times 10^8 speakers
Practical implications: Communication disorders affect daily life, education, work, and social interactions; hence, understanding normal communication is foundational for identifying and managing disorders.

Normal communication as a prerequisite: Understanding how normal communication operates is essential for identifying and managing disorders.
Etymology of communicate: The word communicate is related to the word common and originates from the Latin verb communicare, meaning “to share” or “to make common.”
Everyday communication modes: Communication occurs beyond talking, including watching television, sending texts, dressing, hairstyle, and tattoos—reflecting that communication is a broad, daily activity.
Two-way process: Communication is a bidirectional process where:
- Sender encodes (generates) a message.
- Receiver decodes (translates) the message.
- Breakdown occurs if either encoding or decoding is faulty.
Excellence in communication: Excellent communicators master both sending and receiving messages.
Time spent on communication: Approximately 75\% of a person’s day is spent communicating in some way. The majority of daily communication involves speaking and listening; the rest involves reading and writing.

Core idea: Verbal communication is the expression of language using spoken words and varies with the communication act and formality.
Verbal acts:
- (a) Discussion: An act of verbal communication to make decisions, involving exchange of facts and opinions.
- (b) Dialogue: Free-flowing conversational exchange of ideas, sharing perspectives and understandings.
- (c) Debate: Aimed at achieving agreement on a topic; often involves opposing viewpoints.
Formal vs informal verbal communication:
- Formal verbal communication follows a specific code and is typical in classrooms, courtrooms, job interviews, or formal parties.
- Informal verbal communication uses a code that allows for varied speaking styles, such as conversations with friends or informal gatherings.

Definition: Nonverbal communication involves features of communication that occur aside from spoken or heard language.
Six types of nonverbal communication:
- (a) Paralanguage: Tone of voice, loudness, inflection, pitch; alters the conveyed message (e.g., "Watch your step" spoken softly vs. loudly).
- (b) Sign language: Gestures that replace words; includes fully developed sign languages used by Deaf communities; discussed further in Chapter 15.
- (c) Body language: Facial expressions and postures; facial expressions convey a large portion of nonverbal information (e.g., smiling or frowning).
- (d) Tactile communication: Communication through touch; soothing or comforting touches; important in early parent–child interactions and social development.
- (e) Proxemics: Space and time in communication; interpersonal space needs vary by context (e.g., casual conversation vs. speaking to a crowd).
- (f) Appearance: Clothing and hairstyle convey messages about attitude, mood, wealth, and cultural background; influences others’ judgments and interpretations.
Examples and implications:
- A “poker face” can mask emotion and mislead others about a person’s inner state (e.g., card games).
- Proxemics: casual conversations typically require about 18 in. to 4 ft of space, while addressing a crowd requires around 10 to 12 ft.

Early history of human communication: Before speech, primitive vocalizations (shouting) likely existed as signals of danger.
Infant vocalization: The first vocalization is crying, used by infants to communicate needs such as discomfort, hunger, pain, or other reasons.
Language-specific crying question: Researchers explore whether early infant crying is language-specific, raising questions about pre-birth language development and whether babies can begin acquiring language even before birth (in the womb).

Broad use of the term model: A model can refer to a product type, a posed photograph subject, or a miniature version of an object.
Context for models in the text: The chapter introduces the general idea of models as a foundational concept in understanding communication processes, likely leading to more detailed models in later chapters.

Relationship to daily life: The effectiveness of communication depends on both encoding and decoding, which affects daily interactions, learning, and relationships.
Implications for clinical practice: Understanding normal communication supports the identification and management of disorders, and informs the work of professionals who help individuals with communication disorders.
Ethical and philosophical considerations (implicit): Effective communication involves respect for diverse forms of expression (e.g., sign language, nonverbal cues) and recognition of the social impact of communication disorders on individuals’ quality of life.
Real-world relevance: The material emphasizes how everyday communication (verbal and nonverbal) shapes understanding, social dynamics, and access to information and services.

Robb, Michael P. INTRO: a Guide to Communication Sciences and Disorders, Plural Publishing, Incorporated, 2023. ProQuest Ebook Central, http://ebookcentral.proquest.com/lib/west/detail.action?docID=31020113. Printed pages 19-21; Ebook pages 19-21. Copyright © 2023. All rights reserved.