Processing speed mediates the relationship between brain structure and semantic fluency in aging

Zhu, Zhenan; Jia, Dechang; Li, Mengya; Ye, Qin; Li, Jingyi; Yang, Yujiu

doi:10.1016/j.neulet.2022.136838

Cited by 2 publications

(3 citation statements)

References 29 publications

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“…Due to the connectivity of the whole brain language network and the abnormal connection mode of key language intervals, its language fluency, listening comprehension and retelling ability are poor, which is the most serious aphasia [ 35 ]. The language fluency of different sexes is affected by the volume and density of gray matter [ 57 ]. The brain volume, volume and density of gray matter in men are larger than those in women, and women are more likely to damage more gray matter in severe stroke, which affects language fluency [ 58 ].…”

Section: Discussionmentioning

confidence: 99%

Meta-analysis and systematic review of the relationship between sex and the risk or incidence of poststroke aphasia and its types

Li,

Zhang,

Zhang

et al. 2024

BMC Geriatr

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Objective To analyse and discuss the association of gender differences with the risk and incidence of poststroke aphasia (PSA) and its types, and to provide evidence-based guidance for the prevention and treatment of poststroke aphasia in clinical practice. Data sources Embase, PubMed, Cochrane Library and Web of Science were searched from January 1, 2002, to December 1, 2023. Study selection Including the total number of strokes, aphasia, the number of different sexes or the number of PSA corresponding to different sex. Data extraction Studies with missing data, aphasia caused by nonstroke and noncompliance with the requirements of literature types were excluded. Data synthesis 36 papers were included, from 19 countries. The analysis of 168,259 patients with stroke and 31,058 patients with PSA showed that the risk of PSA was 1.23 times higher in female than in male (OR = 1.23, 95% CI = 1.19–1.29, P < 0.001), with a prevalence of PSA of 31% in men and 36% in women, and an overall prevalence of 34% (P < 0.001). Analysis of the risk of the different types of aphasia in 1,048 patients with PSA showed a high risk in females for global, broca and Wenicke aphasia, and a high risk in males for anomic, conductive and transcortical aphasia, which was not statistically significant by meta-analysis. The incidence of global aphasia (males vs. females, 29% vs. 32%) and broca aphasia (17% vs 19%) were higher in females, and anomic aphasia (19% vs 14%) was higher in males, which was statistically significant (P < 0.05). Conclusions There are gender differences in the incidence and types of PSA. The risk of PSA in female is higher than that in male.

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Section: Discussionmentioning

confidence: 99%

Meta-analysis and systematic review of the relationship between sex and the risk or incidence of poststroke aphasia and its types

Li,

Zhang,

Zhang

et al. 2024

BMC Geriatr

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“…This offers participants a strong visual STM in these age groups, with the ability to store and recall numbers within seconds [13]. Several studies have shown that as age increases, the brain's processing speed and recognition of objects decrease due to brain-related mechanisms [6,9,14,15]. Consistent with the findings in this study, after the age of 33, the number of digits recalled decreases with no number of digits placed higher than 9, and ages 60 and older showed a significant decrease when compared to other generations.…”

Section: Discussionmentioning

confidence: 99%

“…There are studies showing that as age increases, the STM of the individual decreases; however, there is no precise age division for when the decay of STM occurs [8,9]. Therefore, in this study, the relationship between age and the ability to recall short-term memories is memorizing the sequence of items and numbers.…”

Section: Introductionmentioning

confidence: 92%

The Impact of Age on Short-term Memory

Zhu

2024

LNEP

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Short-term memory (STM) temporarily stores sensory events, movements, and cognitive information. Several studies have shown that STM can store previously encountered information as memory. Studies show that as age increases, the STM of the individual decreases; however, there is no precise age division for when the decay of STM occurs. In this study, a method of short-term visual memorization of a random sequence of numbers has been used to study the correlation between age and STM, and the age of decay of STM. The result of this study has shown a significant difference in the number of digits recalled between the age groups 1-12 and 65 and above and age groups 13-17 and 65 and above.Similarly, age groups 1-12 and 18-64 differed significantly. We conclude that the increase in age correlates negatively with short-term memory, where the STM and the ability to recall short items decrease as age increases. Potential genetic and physiological mechanisms of the negative correlation between age and STM are discussed.

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Processing speed mediates the relationship between brain structure and semantic fluency in aging

Cited by 2 publications

References 29 publications

Meta-analysis and systematic review of the relationship between sex and the risk or incidence of poststroke aphasia and its types

Meta-analysis and systematic review of the relationship between sex and the risk or incidence of poststroke aphasia and its types

The Impact of Age on Short-term Memory

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