Semantic Memory, Traumatic Brain Injury, and the Iceberg Effect: What Deficits May Lie Below the Surface?

IF 2.3 3区医学 Q1 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY

American Journal of Speech-Language Pathology Pub Date : 2024-12-03 DOI:10.1044/2024_AJSLP-24-00145

Ryan A McCurdy, Melissa C Duff

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引用次数: 0

Abstract

Purpose: The purpose of this viewpoint was to advocate for increased study of semantic memory ability in traumatic brain injury (TBI).

Method: We review modern conceptualizations of semantic memory and its neural correlates and discuss how common neuroanatomical and cognitive deficits in TBI place this population at an increased risk for semantic disruption. Building on discussions at the 2024 International Cognitive-Communication Disorders Conference, we offer possible explanations for how these disruptions may have been overlooked by our field and offer examples of how semantic memory has been studied in other populations as well as how this work may apply to TBI research.

Result: Semantic memory is critical for academic, vocational, and interpersonal outcomes. Yet, little is known about semantic memory in TBI beyond naming ability. By examining only surface forms of semantic memory, we may be missing a deeper disruption in semantic structure.

Conclusion: More in-depth examination of semantic memory promises to uncover underlying mechanisms of cognitive-communication disorders and new opportunities to develop more sensitive clinical measures of semantic memory impairment.

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语义记忆、创伤性脑损伤和冰山效应：表面之下隐藏着什么缺陷？

目的：本观点提倡加强对创伤性脑损伤（TBI）语义记忆能力的研究。方法：我们回顾了语义记忆的现代概念及其神经相关性，并讨论了创伤性脑损伤中常见的神经解剖学和认知缺陷如何使这一人群的语义中断风险增加。在2024年国际认知沟通障碍会议上的讨论基础上，我们提供了这些干扰如何被我们的领域忽视的可能解释，并提供了如何在其他人群中研究语义记忆的例子，以及如何将这项工作应用于TBI研究。结果：语义记忆对学业、职业和人际关系成绩至关重要。然而，除了命名能力之外，对脑外伤中的语义记忆知之甚少。如果只研究语义记忆的表面形式，我们可能会忽略语义结构中更深层次的破坏。结论：对语义记忆进行更深入的研究有望揭示认知沟通障碍的潜在机制，并为开发更敏感的语义记忆障碍临床措施提供新的机会。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

American Journal of Speech-Language Pathology AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY-REHABILITATION

CiteScore

4.30

自引率

11.50%

发文量

353

审稿时长

>12 weeks

期刊介绍： Mission: AJSLP publishes peer-reviewed research and other scholarly articles on all aspects of clinical practice in speech-language pathology. The journal is an international outlet for clinical research pertaining to screening, detection, diagnosis, management, and outcomes of communication and swallowing disorders across the lifespan as well as the etiologies and characteristics of these disorders. Because of its clinical orientation, the journal disseminates research findings applicable to diverse aspects of clinical practice in speech-language pathology. AJSLP seeks to advance evidence-based practice by disseminating the results of new studies as well as providing a forum for critical reviews and meta-analyses of previously published work. Scope: The broad field of speech-language pathology, including aphasia; apraxia of speech and childhood apraxia of speech; aural rehabilitation; augmentative and alternative communication; cognitive impairment; craniofacial disorders; dysarthria; fluency disorders; language disorders in children; speech sound disorders; swallowing, dysphagia, and feeding disorders; and voice disorders.