Backward digit span working memory7/6/2023 Parsing is one of the important parts of syntactic processing at which a syntactic structure is assembled from a string of words. Syntactic processing, in general, is the process at which different types of information are utilized in order to construct the grammatical structure of a sentence. Patients’ speech is fluent and some morphological-syntactic errors such as omission of functional words are visible which can indicate problems in sentence processing. In the following, we will investigate the production and comprehension of syntax in AD patients, and since working memory plays an important role in these categories, the relationship between working memory and comprehension and production of sentences will be discussed. In this article, our focus is on syntax processing. Among these language disorders confrontational naming, information retrieval, verbal paraphrasing especially in conversational contexts, abstract language comprehension difficulties, difficulty comprehending complex sentences, deficits in semantic and syntactic processing, simplification of the pattern of syntactic structures and sometimes difficulties in sentence processing are obvious. Language disorders are progressive in Alzheimer’s and cover different language domains. The pattern of these linguistic disorders is heterogeneous and different in each patient but visible from the early and even preclinical stages. Linguistic disorders as the main and predominant symptom in the early and preclinical stages of Alzheimer’s disease in recent years have been considered as one of the important diagnostic parameters in Alzheimer’s disease diagnosis protocols. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript."Ĭompeting interests: The authors have declared that no competing interests exist.Īlzheimer’s disease is the most common type of dementia, which is clinically identified with cognitive problems memory, especially working memory, language skills, and inability to perform daily activities and behavioral problems. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: All the relevant data are within the manuscript and its Supporting Information files.įunding: This work was supported by the Isfahan University of Medical Sciences (Research cod: 398427). Received: JAccepted: MaPublished: November 1, 2022Ĭopyright: © 2022 Nasiri et al. Ginsberg, Nathan S Kline Institute, UNITED STATES The results for the average longest correctly repeated string of digits over all sessions by each subject are shown in Table 1 below.Citation: Nasiri M, Moayedfar S, Purmohammad M, Ghasisin L (2022) Investigating sentence processing and working memory in patients with mild Alzheimer and elderly people. The digit span length increased until there were three incorrect attempts. Each backward digit span test began with two digits and was read at a rate of one digit per second. Each trial began with instructions and a statement of understanding from the subject. The backward digit span test consisted of five trials during each session. In the study ( n n n n = 20 20 2 0 20, H 0 \text_0 H 0 start text, H, end text, start subscript, 0, end subscript = 7 7 7 7 plus/minus 2 2 2 2 ), subjects completed a backward digit span test and other memory tests administered during each of five sessions over the course of a year. A researcher wanted to challenge the limits imposed by Miller’s Law ( 7 7 7 7 plus/minus 2 2 2 2 ).
0 Comments
Leave a Reply. |