Life-Span Development of Odor Identification, Learning, and Olfactory Sensitivity

Perception ◽  
1995 ◽  
Vol 24 (12) ◽  
pp. 1457-1472 ◽  
Author(s):  
William S Cain ◽  
Joseph C Stevens ◽  
Connie M Nickou ◽  
Amy Giles ◽  
Ingrid Johnston ◽  
...  

In the first of three studies, children (aged 8 to 14 years) were found to perform worse than young and middle-aged adults in unprompted identification of odors, with average performance much like that of elderly adults. Comparisons on other tasks, specifically odor threshold, prompted odor identification, and object naming (Boston Naming Test), across the life span (five groups) revealed that children have the same excellent olfactory sensitivity as young adults and merely lack odor-specific knowledge that accumulates slowly through life. Such knowledge apparently accumulates so slowly that age-associated discriminative losses, measurable by early middle age, begin to wear away gains obtained through experience before odors can become overlearned. In the second study, a novel adaptive psychophysical method, the step procedure, confirmed the equivalent sensitivity of children and young adults. In the third study, a paired-associate task illustrated the sluggish course of odor learning. Young adults outperformed children, though the youngest group, first graders, made up ground relatively fast. For children and adults, common odors facilitated performance relative to novel odors. The outcome highlighted the relevance of semantic factors in odor learning irrespective of age.

1997 ◽  
Vol 85 (3_suppl) ◽  
pp. 1326-1326 ◽  
Author(s):  
Mark S. Chapell

This study of the frequency of public smiling in a sample of 15,824 children, adolescents, young adults, middle-aged adults, and older adults yielded a significant decrease in public smiling across age groups. Females smiled significantly more than males.


Author(s):  
Alison L Chasteen ◽  
Michelle Horhota ◽  
Jessica J Crumley-Branyon

Abstract Objectives Although the prevalence of ageism against older people has been well-established, less is known about the characteristics of those experiences or the experiences of young and middle-aged adults. The present study addressed these gaps by examining young, middle-aged, and older adults’ self-reports of an ageist action they experienced. Methods Participants’ descriptions were coded for the domain in which the ageist experience occurred, the perpetrator of the ageist experience, and the type of ageist experience. Results Young adults most commonly reported experiencing ageism in the workplace with coworkers as perpetrators. Middle-aged and older adults also reported ageism in the workplace; however, they also frequently reported experiencing ageism while seeking goods and services. Perpetrators of ageism varied more widely for middle-aged and older adults. Regardless of one’s age, ageism was commonly experienced in the form of a lack of respect or incorrect assumptions. Discussion The findings enhance our understanding of ageism across adulthood by considering the domains, perpetrators, and types of ageist expressions that adults of all ages encounter. They also suggest that interventions to reduce age bias will require multifaceted approaches that take into account the different forms that individuals experience across the life span.


1985 ◽  
Vol 20 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Gail A. Jaquish ◽  
Richard E. Ripple

Developmental aspects of ideational fluency, flexibility, and originality were assessed across five age groups (children, adolescents, young adults, adults, middle-aged adults) comparatively in two cultures (Chinese and American). A total of 316 Chinese participants ranging in age from nine to sixty years responded in writing (Cantonese) to presentation of four groups of acoustical stimuli. Responses were scored for fluency, flexibility, and originality of thought. Comparative American data were collected in a previous study. Significant age associated differences in fluency and flexibility were obtained for Chinese respondents. A cross-cultural MANOVA yielded significant main effects for culture; American scores were uniformly higher than Chinese. Developmental trends across age groups demonstrated cross-cultural similarity in the expression of originality.


2020 ◽  
Vol 29 (3) ◽  
pp. 1389-1403
Author(s):  
Jessica Brown ◽  
Kelly Knollman-Porter

Purpose Although guidelines have changed regarding federally mandated concussion practices since their inception, little is known regarding the implementation of such guidelines and the resultant continuum of care for youth athletes participating in recreational or organized sports who incur concussions. Furthermore, data regarding the role of speech-language pathologists in the historic postconcussion care are lacking. Therefore, the purpose of this retrospective study was to investigate the experiences of young adults with history of sports-related concussion as it related to injury reporting and received follow-up care. Method Participants included 13 young adults with history of at least one sports-related concussion across their life span. We implemented a mixed-methods design to collect both quantitative and qualitative information through structured interviews. Participants reported experiencing 42 concussions across the life span—26 subsequent to sports injuries. Results Twenty-three concussions were reported to a parent or medical professional, 14 resulted in a formal diagnosis, and participants received initial medical care for only 10 of the incidents and treatment or services on only two occasions. Participants reported concussions to an athletic trainer least frequently and to parents most frequently. Participants commented that previous experience with concussion reduced the need for seeking treatment or that they were unaware treatments or supports existed postconcussion. Only one concussion incident resulted in the care from a speech-language pathologist. Conclusion The results of the study reported herein shed light on the fidelity of sports-related concussion care management across time. Subsequently, we suggest guidelines related to continuum of care from injury to individualized therapy.


Author(s):  
Alp Aslan ◽  
Anuscheh Samenieh ◽  
Tobias Staudigl ◽  
Karl-Heinz T. Bäuml

Changing environmental context during encoding can influence episodic memory. This study examined the memorial consequences of environmental context change in children. Kindergartners, first and fourth graders, and young adults studied two lists of items, either in the same room (no context change) or in two different rooms (context change), and subsequently were tested on the two lists in the room in which the second list was encoded. As expected, in adults, the context change impaired recall of the first list and improved recall of the second. Whereas fourth graders showed the same pattern of results as adults, in both kindergartners and first graders no memorial effects of the context change arose. The results indicate that the two effects of environmental context change develop contemporaneously over middle childhood and reach maturity at the end of the elementary school days. The findings are discussed in light of both retrieval-based and encoding-based accounts of context-dependent memory.


2021 ◽  
Vol 23 (4) ◽  
pp. 305-314
Author(s):  
Thalia Saraiva Mendonça ◽  
Vitor Dias de Arruda Andrade ◽  
Pedro Nogarotto Cembraneli ◽  
Julia Brasileiro de Faria Cavalcante ◽  
André Salotto Rocha ◽  
...  

Background. Traumatic spinal cord injury (SCI) is a lesion that can affect several spinal structures, including the vertebrae, spinal cord, ligaments, and other adjacent parts of the spine. Traumatic spinal cord injury (SCI) can cause functional changes in patients of different ages. Material and methods. The study aims to determine whether there are social, clinical, and radiological differences between young, middle-aged, and elderly adults with SCI caused by a ground-level fall. This retrospective study analyzed the records of patients with a clinical diagnosis of SCI. It enrolled patients with traumatic spinal cord injury after a ground-level fall divided as follows: young aged adults 18–35 years of age (G1); middle-aged adults aged 36–60 years (G2); and elderly adults aged over 60 years (G3). Their clinical, social, and radiological variables were analyzed. Results. It is observed that low schooling level, being widowed, and being a homemaker were more frequently encountered among elderly adults, whereas being single was more common in middle-aged adults. The morphologic diagnosis of compression fracture and the associated injury of facial trauma occurred more frequently in elderly adults, with an increasing tendency with age. Conservative therapeutic management was most commonly encountered in elderly adults, compared to surgery from a posterior approach in middle-aged adults. Listhesis was better identified in middle-aged adults by computed tomography (CT). Spinal cord contusion and injury to the C1 vertebra were demonstrated in young adults by magnetic resonance imaging (MRI). Conclusions. 1. Elderly adults with low education level, widowed, and homemakers were more susceptible to SCI caused by a fall. 2. Single marital status was more frequently noted in young adults. 3. The most frequent clinical aspects were the morphological aspect of compression fracture and fa­cial trauma as an associated injury in elderly adults, with the occurrence of facial trauma increasing with age. 4. Conservative therapeutic management was more common in elderly adults than surgery from a po­sterior approach in middle-aged adults. 5. Re­garding the radiological aspects of CT, listhesis was better identified in middle-aged adults. Spi­nal cord contusions and C1 vertebra lesions were better identified in young adults by MRI.


1991 ◽  
Vol 12 (2) ◽  
pp. 217-239 ◽  
Author(s):  
Noel K. Jones

ABSTRACTThis study explores the development in children of dual-level phonological processing. Evidence suggesting that 6-year-olds form underlying representations composed of morphophonemic segments was obtained by asking children to imitate complex words, omit specified portions, and discuss the meaning of the resulting word parts. Trial items represent a variety of instances in which phonetic forms differ from underlying representations. Although language-advanced first graders produced stronger evidence suggesting morphophonemic segments than language-delayed age-mates, and young adults supplied stronger evidence than either first-grade group; strength of evidence leads to the interpretation that even language-delayed 6-year-olds form morphophonemic segments. Differences in performance between groups probably derive from differences in metalinguistic abilities and linguistic experience rather than from differences in units of phonological processing.


Circulation ◽  
2021 ◽  
Vol 143 (Suppl_1) ◽  
Author(s):  
Minsuk Oh ◽  
Kelley Pettee Gabriel ◽  
David R Jacobs ◽  
James G Terry ◽  
Jingzhong Ding ◽  
...  

Introduction: Pericardial adipose tissue (PAT), an ectopic adipose depot surrounding the coronary arteries, is a pathogenic risk factor for cardiometabolic disease; however, the association of sedentary behavior with PAT is poorly understood. We examined the longitudinal association of 10-year change in TV viewing with concurrent change in PAT. Hypothesis: Increased h/day of TV viewing over 10 years are associated with larger mean increases in PAT during the same 10-year period. Methods: Middle-aged adults (N=1659, mean age=40.4, 912 females, 733 blacks) from the Coronary Artery Risk Development in Young Adults (CARDIA) Study at the exam years 15 (2000-2001) and 25 (2010-2011) were included. Both TV viewing (h/day) and the volume of PAT (mL) were measured at Years 15 and 25 using the CARDIA physical activity questionnaire and computed tomography, respectively. Covariates measured at year 15 included PAT, sociodemographic factors, cardiovascular disease risk factors, diet quality, TV viewing, moderate-to-vigorous intensity physical activity (MVPA), inflammatory cytokines, and waist circumference. Multivariable linear regression was used to estimate 10-year change in PAT across increasing tertiles (≤ -1, > -1 to < 1, ≥ 1 h/day) of 10-year changes in TV viewing. Results: On average, TV viewing and PAT increased between the two exam years by 0.2 h/day (8.7% increase, mean: 2.3 → 2.5 h/day) and 11.8 mL (25.9% increase, mean: 45.6 → 57.4 mL), respectively (all p < 0.01). In the fully adjusted model including MVPA and other major confounders, the highest tertile of 10-year change in TV viewing was associated with greater change in PAT (β = 2.97 mL, p < 0.01) when compared with the lowest tertile (see Figure 1 ), while mean PAT change was intermediate in the middle tertile. Conclusions: A greater 10-year increase in TV viewing is associated with a greater concurrent increase in PAT, independent of MVPA and other important confounders. Reducing TV viewing time may be associated with less PAT accumulation with age.


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S80-S81
Author(s):  
Grace Caskie ◽  
Anastasia E Canell ◽  
Hannah M Bashian

Abstract Attitudes towards aging include both positive and negative beliefs about older adults (Iverson et al., 2017; Palmore, 1999). Palmore’s (1998) Facts on Aging Quiz, a widely used assessment of knowledge about aging, also identifies common societal misconceptions about aging. Findings regarding age group differences in attitudes toward aging are mixed (Bodner et al., 2012; Cherry & Palmore, 2008; Rupp et al., 2005). The current study compared knowledge of aging, negative age bias, and positive age bias between young adults (18-35 years, n=268) and middle-aged adults (40-55 years; n=277). Middle-aged adults reported significantly greater average knowledge of aging than young adults (p=.019), although both groups had relatively low knowledge (MA: M=13.0, YA: M=12.2). Middle-aged adults also showed significantly less negative age bias (p&lt;.001) and significantly more positive age bias than young adults (p=.026). Although the total sample was significantly more likely to be incorrect than correct on 23 of the 25 facts (p&lt;.001), young adults were significantly more likely than middle-aged adults (p&lt;.001) to respond incorrectly for only 2 of 25 facts. Both facts reflected greater negative age bias among young adults than middle-aged adults. These facts concerned older adults’ ability to work as effectively as young adults (fact 9) and frequency of depression in older adults (fact 13). Results demonstrate that age bias is not limited to young adults and may continue through midlife, though negative age bias in particular may be lower for individuals approaching older adulthood, which could have implications for their psychological and physical well-being.


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