Agnosia is a neurological disorder that results in an inability to recognize certain objects, persons, smells, or sounds despite normally functioning visual and/or auditory senses; for example they are not able to identify a sound as a sneeze or an object as an apple. It also can be classified as having trouble processing sensory information, like touch, sound, and even light. Agnosia is normally restricted to one sensory modality like vision or hearing and these deficits are not due to memory loss. It can result from strokes, traumatic brain injury, dementia, a tumor, developmental disorders, overexposure to environmental toxins (e.g., carbon monoxide poisoning), or other neurological conditions. Symptoms may vary, according to the area of the brain that is affected. With agnosia the brain develops these lesions that are caused by neurological ailments or even a traumatic brain injury either in the temporal, occipital, or parietal lobe of the brain.
For better understanding this paper will briefly summarize the different types of agnosia.
Table of Contents
- I Introduction
- II The auditory system and auditory disorder
- 2.1 Types of agnosia
- III Disorders of auditory processing and word recognition
- 3.1 Cortical deafness
- 3.1.1 Symptoms
- 3.1.2 Causes and damage
- 3.1.3 Treatments
- 3.2 Auditory agnosia
- 3.2.1 Symptoms
- 3.2.2 Causes and damage
- 3.2.3 Treatments
- 3.3 Auditory verbal agnosia
- 3.3.1 Symptoms
- 3.3.2 Causes and damage
- 3.3.3 Treatments
- 3.4 Phonological retrieval disorder
- 3.1 Cortical deafness
- IV Summary
Objectives and Key Themes
This paper aims to provide an overview of agnosia, focusing specifically on auditory agnosia and its related disorders. It will explore the different types of agnosia, detailing their symptoms, causes, and potential treatments. The paper will primarily concentrate on auditory processing disorders as described by Ingram (2007). * Different types of agnosia and their neurological bases. * Auditory agnosia: symptoms, causes, and treatments. * The relationship between brain damage and specific auditory processing deficits. * Comparison of various auditory processing disorders. * Overview of treatment approaches for agnosias.Chapter Summaries
I Introduction: This introductory chapter defines agnosia as a neurological disorder hindering the recognition of objects, persons, smells, or sounds despite intact sensory functions. It highlights the inability to identify sensory information like sounds (e.g., a sneeze) or objects (e.g., an apple). The introduction emphasizes that agnosia typically affects a single sensory modality (vision or hearing) and isn't due to memory loss. Various causes are mentioned, including strokes, traumatic brain injuries, dementia, tumors, and developmental disorders. The chapter focuses on auditory agnosia's impact on language, hearing, and speech, setting the stage for a detailed exploration of this specific type of agnosia. II The auditory system and auditory disorder: This section begins by briefly differentiating various agnosias based on sensory perception (touch, vision, auditory). Acknowledging the diverse and sometimes debated sub-categories, the chapter focuses on visual agnosia, tactile agnosia, autotopagnosia, and auditory agnosia. Visual agnosia is explained as resulting from brain damage connecting the occipital, parietal, and temporal lobes, impacting visual information comprehension. Tactile agnosia, stemming from parietal lobe lesions, involves an inability to identify objects by touch despite feeling their weight. Autotopagnosia, caused by left parietal lobe damage, is characterized by the inability to locate one's body parts. The chapter lays the groundwork for understanding the different forms of agnosia before focusing on auditory processing disorders. III Disorders of auditory processing and word recognition: This chapter delves into specific auditory processing disorders, providing detailed descriptions of cortical deafness, auditory agnosia, auditory verbal agnosia, and phonological retrieval disorder. For each disorder, symptoms, causes (often linked to specific brain damage), and treatments are discussed. This comprehensive overview connects specific impairments in auditory processing to their underlying neurological mechanisms. The detailed explanation of each disorder illuminates how various aspects of auditory comprehension can be affected, resulting in differing degrees and kinds of deficits.Keywords
Agnosia, auditory agnosia, auditory processing disorders, cortical deafness, auditory verbal agnosia, phonological retrieval disorder, brain damage, neurological disorders, sensory processing, speech recognition, treatment approaches.
Frequently Asked Questions: A Comprehensive Overview of Agnosia
What is the focus of this document?
This document provides a comprehensive overview of agnosia, with a particular emphasis on auditory agnosia and related disorders. It explores the different types of agnosia, detailing their symptoms, causes, and potential treatments, primarily focusing on auditory processing disorders as described by Ingram (2007).
What types of agnosia are discussed?
The document discusses various types of agnosia, including visual agnosia, tactile agnosia, autotopagnosia, and auditory agnosia. Within auditory agnosia, it delves into specific disorders such as cortical deafness, auditory verbal agnosia, and phonological retrieval disorder.
What are the key themes explored in the document?
Key themes include the different types of agnosia and their neurological bases; the symptoms, causes, and treatments of auditory agnosia; the relationship between brain damage and specific auditory processing deficits; a comparison of various auditory processing disorders; and an overview of treatment approaches for agnosias.
What are the symptoms, causes, and treatments discussed for each auditory processing disorder?
For each disorder (cortical deafness, auditory agnosia, auditory verbal agnosia, and phonological retrieval disorder), the document details the characteristic symptoms, the underlying causes often linked to specific brain damage, and potential treatment approaches.
How does the document structure its information?
The document is structured into four main sections: an introduction defining agnosia; a section on the auditory system and auditory disorders; a detailed section on disorders of auditory processing and word recognition; and a concluding summary. Each section provides a comprehensive overview of the topic, with sub-sections dedicated to specific disorders.
What is the definition of agnosia provided in the document?
Agnosia is defined as a neurological disorder that hinders the recognition of objects, persons, smells, or sounds despite intact sensory functions. It highlights the inability to identify sensory information, such as sounds or objects, and emphasizes that it typically affects a single sensory modality (vision or hearing) and isn't due to memory loss.
What are the key causes of agnosia mentioned?
The document mentions various causes of agnosia, including strokes, traumatic brain injuries, dementia, tumors, and developmental disorders.
What is the significance of Ingram (2007) in this context?
Ingram (2007) serves as a primary reference for the document's discussion of auditory processing disorders, providing a framework for understanding and categorizing these conditions.
What are the keywords associated with this document?
Keywords include: Agnosia, auditory agnosia, auditory processing disorders, cortical deafness, auditory verbal agnosia, phonological retrieval disorder, brain damage, neurological disorders, sensory processing, speech recognition, and treatment approaches.
- Citation du texte
- Anonym (Auteur), 2018, Auditory Agnosia and its effects on language, hearing and speech, Munich, GRIN Verlag, https://www.grin.com/document/514343
