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1.
Front Psychol ; 15: 1354120, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38533217

RESUMO

Introduction: Alexithymia is characterized by difficulties identifying and describing feelings but expression of externally oriented thinking (EOT) and difficulty fantasizing is more variable. In two studies, we investigated whether links between EOT and fantasizing are mediated by sensory processing sensitivity (SPS). Methods: University students completed measures of alexithymia, SPS, and fantasizing. Results: In Study 1 (N = 700) we identified two clusters of SPS traits: a positive facet (sensitivity to subtle stimuli) and a negative facet (sensitivity to uncomfortable stimuli). In the 499 participants who completed the fantasy measure, low EOT scores predicted stronger SPS positive and negative traits, which predicted a stronger tendency to mentally project oneself into the lives of characters in books, movies, and plays. In Study 2 (N = 600), the link between EOT and this same fantasizing tendency was again mediated by features of SPS-in this case fantasy proneness and emotional reactivity. Discussion: We suggest that, whereas individuals who score high on EOT have an impoverished fantasy life, those who score relatively low on EOT and turn their attention inward are able to maintain stronger representations of imagined events in working memory (enhancing the likelihood that they will be recalled) and react more strongly to these events (enhancing their salience). Stronger expression of these features of SPS, in turn, increases the likelihood that one will develop a cognitive style that involves the application of imagery-based strategies to support deep processing of the thoughts and feelings of characters depicted in narratives.

2.
Front Psychol ; 15: 1330483, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38318082

RESUMO

Introduction: University students are at high risk for anxiety and depression. Our main objective was to tease apart variance in symptom severity that was uniquely attributable to four associated variables that are frequently confounded: exposure to childhood emotional abuse, alexithymia, sensory processing sensitivity (SPS), and anxiety sensitivity (AS). Methods: University students (N = 410) completed an online survey designed to measure our four key study variables along with several other potentially relevant variables including sex, physical activity levels, and perceived COVID-19 impacts. Results: Over half of the participants reported moderate to extremely severe symptoms of anxiety and depression. Females reported stronger signs of SPS and AS and were more likely than males to have increased their moderate/vigorous exercise since the pandemic began. After controlling for the other variables, the best predictors of perceived COVID-19 impacts were SPS, childhood emotional abuse, and current levels of physical activity. Whereas all three personality variables and childhood emotional abuse emerged as significant predictors of both depression and anxiety, neither COVID-19 impacts nor physical activity levels accounted for unique variance in either model. Unexpectedly, male sex emerged as an additional risk factor for depression, raising the possibility that males experience unique stressors and societal pressures that increase their risk of depression. Discussion: These findings help to clarify the links between childhood emotional abuse, personality traits implicated in emotional awareness and self-regulation, and mental health. They may have important implications for the development and implementation of individualized treatments for common mental disorders.

3.
Children (Basel) ; 10(7)2023 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-37508670

RESUMO

Parental mental health services in neonatal follow-up programs (NFUPs) are lacking though needed. This study aimed to determine (1) the unmet mental health needs of parents and (2) the parent and provider perspectives on barriers and opportunities to increase mental health service access. Study 1: Parents in a central Canadian NFUP (N = 49) completed a mixed-method online survey (analyzed descriptively and by content analysis) to elucidate their mental health, related service use, barriers to service use, and service preferences. Study 2: Virtual focus groups with NFUP service providers (N = 5) were run to inform service improvements (analyzed by reflexive thematic analysis). The results show that parents endorsed a 2-4 times higher prevalence of clinically significant depression (59.2%), anxiety (51.0%), and PTSD (26.5%) than the general postpartum population. Most parents were not using mental health services (55.1%) due to resource insecurity among parents (e.g., time, cost) and the organization (e.g., staffing, training, referrals). Consolidating parents' and service providers' perspectives revealed four opportunities for service improvements: bridging services, mental health screening, online psychoeducation, and peer support. Findings clarify how a central Canadian NFUP can address parental mental health in ways that are desired by parents and feasible for service providers.

4.
Front Psychol ; 14: 1072783, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37151350

RESUMO

Introduction: Empathy-the ability to identify and share another person's emotional state-is an important socio-emotional process arising, in part, from emotional contagion. In the current study, we assessed unique variance in emotional contagion and other empathy-related constructs accounted for by two personality traits, alexithymia and sensory processing sensitivity (SPS), when controlling for childhood emotional abuse and current depressed mood. Methods: A sample of 305 adults (M age = 20.1 years) watched brief film clips chosen to induce various emotional states. After each film, the participants rated how strongly they experienced each of nine different emotions. They then completed self-report measures of alexithymia, SPS, empathy-related constructs, childhood emotional abuse, and current mood. Results: Those scoring high (vs. low) on SPS reported stronger primary emotions and a larger range of emotions when watching the films and were more apt to believe that their emotions matched those of the individuals featured in the films. They also scored higher on both self-oriented processes (such as the tendency to feel personal distress in tense situations) and other-oriented processes (such as perspective taking and empathic concern) related to empathy. Individuals scoring high (vs. low) on alexithymia reported feeling a larger range of emotions while watching the films but scored lower on other-oriented processes related to empathy. After controlling for SPS and alexithymia, current depressed mood predicted experiencing less varied reactions to mixed valence films that elicited strong feelings of embarrassment/humiliation, and less amusement when watching positive films. Childhood emotional abuse did not emerge as a predictor of emotional contagion or empathy. Discussion: We propose that the strong and nuanced feelings elicited in those scoring high on SPS by observing others support their personal view that they are highly empathic. In contrast, by failing to closely examine their own mixed reactions to others, individuals with alexithymia may find it difficult to connect with, understand, and respond to others' feelings.

5.
JMIR Form Res ; 6(5): e31338, 2022 May 12.
Artigo em Inglês | MEDLINE | ID: mdl-35551056

RESUMO

BACKGROUND: Several treatments for anxiety are available, which can make treatment decisions difficult. Resources are often produced with limited knowledge of what information is of interest to consumers. This is a problem because there is limited understanding of what people want to know when considering help for anxiety. OBJECTIVE: This study aimed to examine the information needs and preferences concerning treatment options for anxiety by assessing the following: what information people consider to be important when they are considering treatment options for anxiety, what information people have received on psychological and medication treatment in the past, how they received this information in the past, and whether there are any differences in information needs between specific samples and demographic groups. METHODS: Using a web-based survey, we recruited participants from a peer-support association website (n=288) and clinic samples (psychology, n=113; psychiatry, n=64). RESULTS: Participants in all samples wanted information on a broad range of topics pertaining to anxiety treatment. However, they reported that they did not receive the desired amount of information. Participants in the clinic samples rated the importance of information topics higher than did those in the self-help sample. When considering the anxiety treatment information received in the past, most respondents indicated receiving information from informational websites, family doctors, and mental health practitioners. In terms of what respondents want to learn about, high ratings of importance were given to topics concerning treatment effectiveness, how it works, advantages and disadvantages, what happens when it stops, and common side effects. CONCLUSIONS: It is challenging for individuals to obtain anxiety-related information on the range of topics they desire through currently available information sources. It is also difficult to provide comprehensive information during typical clinical visits. Providing evidence-based information on the web and in a brochure format may help consumers make informed choices and support the advice provided by health professionals.

6.
Patient Educ Couns ; 105(4): 933-941, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34404559

RESUMO

OBJECTIVES AND METHODS: A wealth of online anxiety information exists but much of it is not evidence-based or well-balanced. This study evaluated anxiety websites (N = 20) on readability, quality, usability, visual design, and content. RESULTS: Overall, websites were of reasonable quality but only half were considered understandable according to the PEMAT usability scale (70% cutoff value). The average reading level across websites was 11.2 (SMOG), which is higher than NIH recommended grade 6-7 level. Websites had variable design features and a trending association suggested websites with better design come up earlier in search results. The number of topics covered varied across websites and most did not adequately cover all topics of interest. Most websites included information about psychological and self-help treatments, how treatment works, and what treatment entails. The Top 5 websites were: (1) Anxiety BC, (2) ADAA, (3) Mind, (4) Beyond Blue, and (5) Web MD. CONCLUSIONS: This is the first study to evaluate existing anxiety information websites based on the dimensions described above and their relationship to Google search results. PRACTICE IMPLICATIONS: This study highlights the importance of considering several dimensions in developing mental health resources and provides direction for strategies to improve existing websites and/or develop new resources.


Assuntos
Ansiedade , Compreensão , Humanos , Internet
7.
Front Psychol ; 12: 583786, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34108902

RESUMO

Alexithymia is a dimensional trait characterized by difficulties identifying and describing feelings and an externally oriented thinking (EOT) style. Here, we explored interrelationships between alexithymia and measures assessing how individuals process and regulate their responses to environmental and body-based cues. Young adults (N = 201) completed self-report questionnaires assessing alexithymia, sensory processing sensitivity (SPS), interoceptive accuracy (IA), sensory processing styles, and current levels of depression, anxiety, and stress. Whereas EOT was related to low orienting sensitivity, problems with emotional appraisal (difficulties identifying feelings/difficulties describing feelings) were related to heightened sensory sensitivity. In addition, features of SPS improved the prediction of alexithymia above and beyond that accounted for by IA. We suggest that EOT is linked to problems maintaining a representation of one's emotions in working memory and that low IA and problems with emotional appraisal are linked to atypicalities in sensory processing that may impact embodiment. A latent profile analysis revealed five classes of individuals distinguished by the relative strength of different alexithymic traits and by differences in IA and sensory processing styles. The classes identified included two lexithymic, one modal, and two alexithymic groups, showing different susceptibilities to SPS. Overall, our findings lend support to the view that alexithymia is associated with atypicalities in both bottom-up and top-down processes that impact emotion processing and regulation. They also raise the possibility that individuals with different alexithymia subtypes may differ with regard to a range of factors, including not only SPS but also early life experiences, mental health outcomes, and susceptibility to various personality disorders.

8.
Cogn Emot ; 35(3): 569-575, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-31941409

RESUMO

There is increasing interest in exploring the impact of alexithymia on interpersonal interactions. This study explored relationships between alexithymia and the complex mentalising skills needed to infer how a speaker intended a non-literal statement to be understood. A sample of university students (N = 70) viewed videotaped exchanges and attempted to classify remarks as literal, sarcastic, jocular, or white lies. Alexithymia was not associated with less consistent labelling of statement types. However, after accounting for variance due to verbal intelligence and sex, we found that those who reported more difficulties identifying their own feelings needed more time to distinguish between different statement types on the basis of the speaker's nonverbal cues. These findings highlight the value of examining response times, and of accounting for individual differences in specific alexithymic traits, when assessing social perception and cognition.


Assuntos
Sinais (Psicologia) , Percepção Social , Sintomas Afetivos , Emoções , Humanos , Relações Interpessoais
9.
Front Psychol ; 11: 1820, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32793083

RESUMO

Alexithymia is a personality trait characterized by difficulties identifying and describing feelings (DIF and DDF) and an externally oriented thinking (EOT) style. The primary aim of the present study was to investigate links between alexithymia and the evaluation of emotional scenes. We also investigated whether viewers' evaluations of emotional scenes were better predicted by specific alexithymic traits or by individual differences in sensory processing sensitivity (SPS). Participants (N = 106) completed measures of alexithymia and SPS along with a task requiring speeded judgments of the pleasantness of 120 moderately arousing scenes. We did not replicate laterality effects previously described with the scene perception task. Compared to those with weak alexithymic traits, individuals with moderate-to-strong alexithymic traits were less likely to classify positively valenced scenes as pleasant and were less likely to classify scenes with (vs. without) implied motion (IM) in a way that was consistent with normative scene valence ratings. In addition, regression analyses confirmed that reporting strong EOT and a tendency to be easily overwhelmed by busy sensory environments negatively predicted classification accuracy for positive scenes, and that both DDF and EOT negatively predicted classification accuracy for scenes depicting IM. These findings highlight the importance of accounting for stimulus characteristics and individual differences in specific traits associated with alexithymia and SPS when investigating the processing of emotional stimuli. Learning more about the links between these individual difference variables may have significant clinical implications, given that alexithymia is an important, transdiagnostic risk factor for a wide range of psychopathologies.

10.
Autism Res ; 11(6): 942-955, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29637718

RESUMO

Many factors contribute to social difficulties in individuals with autism spectrum disorder (ASD). The goal of the present work was to determine whether atypicalities in how individuals with ASD process static, socially engaging faces persist when nonrigid facial motion cues are present. We also sought to explore the relationships between various face processing abilities and individual differences in autism symptom severity and traits such as empathy. Participants included 16 adults with ASD without intellectual impairment and 16 sex- and age-matched controls. Mean Verbal IQ was comparable across groups [t(30) = 0.70, P = 0.49]. The two groups responded similarly to many of the experimental manipulations; however, relative to controls, participants with ASD responded more slowly to dynamic expressive faces, even when no judgment was required; were less accurate at identity matching with static and dynamic faces; and needed more time to make identity and expression judgments [F(1, 30) ≥ 6.37, P ≤ 0.017, ηp2 ≥ 0.175 in all cases], particularly when the faces were moving [F(1, 30) = 3.40, P = 0.072, ηp2 = 0.104]. In the full sample, as social autistic traits increased and empathic skills declined, participants needed more time to judge static identity, and static or dynamic expressions [0.43 < |rs | < 0.56]. The results suggest that adults with ASD show general impairments in face and motion processing and support the view that an examination of individual variation in particular personality traits and abilities is important for advancing our understanding of face perception. Autism Res 2018, 11: 942-955. © 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Our findings suggest that people with ASD have problems processing expressive faces, especially when seen in motion. It is important to learn who is most at risk for face processing problems, given that in the general population such problems appear to be linked to impaired social skills and empathy. By studying relationships between different abilities and traits, we may be able to find better ways to diagnose and support all people on the autism spectrum.


Assuntos
Transtorno do Espectro Autista/fisiopatologia , Empatia/fisiologia , Reconhecimento Facial/fisiologia , Adolescente , Adulto , Sinais (Psicologia) , Expressão Facial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
11.
Dev Psychopathol ; 26(4 Pt 1): 889-900, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24912737

RESUMO

Children born prematurely at very low birth weight (<1500 g) are at increased risk for impairments affecting social functioning, including autism spectrum disorders (e.g., Johnson et al., 2010). In the current study, we used the Happé-Frith animated triangles task (Abell, Happé, & Frith, 2000) to study social attribution skills in this population. In this task, typical viewers attribute intentionality and mental states to shapes, based on characteristics of their movements. Participants included 34 preterm children and 36 full-term controls, aged 8-11 years. Groups were comparable in terms of age at test, gender, handedness, and socioeconomic status; they also performed similarly on tests of selective attention/processing speed and verbal intelligence. Relative to full-term peers, preterm children's descriptions of the animations were less appropriate overall; they also overattributed intentionality/mental states to randomly moving shapes and underattributed intentionality/mental states to shapes that seemed to be interacting socially. Impairments in the ability to infer the putative mental states of triangles from movement cues alone were most evident in children displaying more "autistic-like" traits, and this may reflect atypical development of and/or functioning in, or atypical connections between, parts of the social brain.


Assuntos
Recém-Nascido de muito Baixo Peso/psicologia , Nascimento Prematuro/psicologia , Percepção Social , Criança , Transtornos Globais do Desenvolvimento Infantil/diagnóstico , Transtornos Globais do Desenvolvimento Infantil/etiologia , Transtornos Globais do Desenvolvimento Infantil/psicologia , Feminino , Humanos , Testes de Inteligência , Masculino , Testes Psicológicos , Fatores de Risco , Habilidades Sociais
12.
Front Psychol ; 5: 193, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24639664

RESUMO

Typically developing individuals show a strong visual preference for faces and face-like stimuli; however, this may come at the expense of attending to bodies or to other aspects of a scene. The primary goal of the present study was to provide additional insight into the development of attentional mechanisms that underlie perception of real people in naturalistic scenes. We examined the looking behaviors of typical children, adolescents, and young adults as they viewed static and dynamic scenes depicting one or more people. Overall, participants showed a bias to attend to faces more than on other parts of the scenes. Adding motion cues led to a reduction in the number, but an increase in the average duration of face fixations in single-character scenes. When multiple characters appeared in a scene, motion-related effects were attenuated and participants shifted their gaze from faces to bodies, or made off-screen glances. Children showed the largest effects related to the introduction of motion cues or additional characters, suggesting that they find dynamic faces difficult to process, and are especially prone to look away from faces when viewing complex social scenes-a strategy that could reduce the cognitive and the affective load imposed by having to divide one's attention between multiple faces. Our findings provide new insights into the typical development of social attention during natural scene viewing, and lay the foundation for future work examining gaze behaviors in typical and atypical development.

13.
J Child Psychol Psychiatry ; 55(9): 990-8, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24552579

RESUMO

BACKGROUND: Research has shown that children born very prematurely are at substantially elevated risk for social and behavioral difficulties similar to those seen in full-term children with autism spectrum disorders (ASDs). METHODS: To gain insight into core deficits that may underlie these difficulties, in this study, we assessed the social perceptual skills of 8- to 11-year-old children born at very low birthweight (VLBW) (<1,500 g) and age-matched, full-term controls, using the Child and Adolescent Social Perception Measure. We also assessed social and behavioral outcomes with two parent-report measures used in ASD screening. RESULTS: Children in the preterm group had normal range estimated verbal IQ. However, we found that they were impaired in their ability to use nonverbal cues from moving faces and bodies, and situational cues, to correctly identify the emotions of characters depicted in videotaped social interactions. Their performance on this task was related to the number of 'autistic-like' traits they displayed. CONCLUSIONS: This research highlights links between social perceptual deficits and poor social and behavioral outcomes in children born very prematurely. The results also suggest that even those who have escaped major intellectual/language problems are at risk for social and behavioral problems that can be of clinical concern.


Assuntos
Recém-Nascido de muito Baixo Peso/psicologia , Comportamento Social , Percepção Social , Criança , Feminino , Humanos , Masculino
14.
Neurosci Biobehav Rev ; 37(5): 743-52, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23545331

RESUMO

Duchenne muscular dystrophy (DMD) is a genetic condition affecting predominantly boys that is characterized by fatal muscle weakness. While there is no cure, recent therapeutic advances have extended the lifespan of those with DMD considerably. Although the physiological basis of muscle pathology is well-documented, less is known regarding the cognitive, behavioral, and psychosocial functioning of those afflicted. Several lines of evidence point to central nervous system involvement as an organic feature of DMD, challenging our view of the disorder as strictly neuromuscular. This report provides a review of the literature on neuropsychological and neurobehavioral functioning in DMD. Recent research identifying associations with DMD and neuropsychiatric disorders is also discussed. Lastly, the review presents implications of findings related to nonmotor aspects of DMD for improving the quality of life in those affected. While the literature is often contradictory in nature, this review highlights some key findings for consideration by clinicians, educators and parents when developing therapeutic interventions for this population.


Assuntos
Transtornos Cognitivos/etiologia , Inteligência , Distrofia Muscular de Duchenne , Comportamento Verbal/fisiologia , Humanos , Distrofia Muscular de Duchenne/complicações , Distrofia Muscular de Duchenne/patologia , Distrofia Muscular de Duchenne/psicologia
15.
J Vis ; 13(5): 26, 2013 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-23625643

RESUMO

Facial motion cues facilitate identity and expression processing (Pilz, Thornton, & Bülthoff, 2006). To explore this dynamic advantage, we used Garner's speeded classification task (Garner, 1976) to investigate whether adding dynamic cues alters the interactions between the processing of identity and expression. We also examined whether facial motion affected women and men differently, given that women show an advantage for several aspects of static face processing (McClure, 2000). Participants made speeded identity or expression judgments while the irrelevant cue was held constant or varied. Significant interference occurred with both tasks when static stimuli were used (as in Ganel & Goshen-Gottstein, 2004), but interference was minimal with dynamic displays. This suggests that adult viewers are either better able to selectively attend to relevant cues, or better able to integrate multiple facial cues, when viewing moving as opposed to static faces. These gains, however, come with a cost in processing time. Only women showed asymmetrical interference with static faces, with variations in identity affecting expression judgments more than the opposite. This finding may reflect sex differences in global-local processing biases (Godard & Fiori, 2012). Our findings stress the importance of using dynamic displays and of considering sex distributions when characterizing typical face processing mechanisms.


Assuntos
Discriminação Psicológica/fisiologia , Face , Expressão Facial , Reconhecimento Visual de Modelos/fisiologia , Reconhecimento Psicológico/fisiologia , Fatores Sexuais , Adolescente , Adulto , Análise de Variância , Atenção/fisiologia , Feminino , Humanos , Masculino , Adulto Jovem
16.
J Pediatr Surg ; 46(7): 1309-18, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21763827

RESUMO

BACKGROUND/PURPOSE: Although there has been a marked improvement in the survival of children with congenital diaphragmatic hernia (CDH) in the past 2 decades, there are few reports of long-term neurodevelopmental outcome in this population. The present study examined neurodevelopmental outcomes in 10- to 16-year-old CDH survivors not treated with extracorporeal membrane oxygenation (ECMO). METHODS: Parents of 27 CDH survivors completed questionnaires assessing medical problems, daily living skills, educational outcomes, behavioral problems, and executive functioning. Fifteen CDH survivors and matched full-term controls completed standardized intelligence, academic achievement, phonological processing, and working memory tests. RESULTS: Non-ECMO-treated CDH survivors demonstrated high rates of clinically significant difficulties on standardized academic achievement measures, and 14 of the 27 survivors had a formal diagnosis of specific learning disability, attention deficit hyperactivity disorder, or developmental disability. Specific problems with executive function, cognitive and attentional weaknesses, and social difficulties were more common in CDH patients than controls. Perioperative hypocapnia was linked to executive dysfunction, behavioral problems, lowered intelligence, and poor achievement in mathematics. CONCLUSIONS: Non-ECMO-treated CDH survivors are at substantial risk for neurodevelopmental problems in late childhood and adolescence.


Assuntos
Dano Encefálico Crônico/etiologia , Deficiências do Desenvolvimento/etiologia , Oxigenação por Membrana Extracorpórea , Hérnias Diafragmáticas Congênitas , Hipocapnia/complicações , Complicações Pós-Operatórias/etiologia , Atividades Cotidianas , Adolescente , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/etiologia , Dano Encefálico Crônico/epidemiologia , Dano Encefálico Crônico/prevenção & controle , Criança , Deficiências do Desenvolvimento/epidemiologia , Deficiências do Desenvolvimento/prevenção & controle , Escolaridade , Oxigenação por Membrana Extracorpórea/estatística & dados numéricos , Seguimentos , Hérnia Diafragmática/cirurgia , Ventilação de Alta Frequência , Humanos , Hipocapnia/prevenção & controle , Recém-Nascido , Inteligência , Complicações Intraoperatórias , Transtornos da Linguagem/epidemiologia , Transtornos da Linguagem/etiologia , Deficiências da Aprendizagem/epidemiologia , Deficiências da Aprendizagem/etiologia , Deficiências da Aprendizagem/prevenção & controle , Transtornos da Memória/epidemiologia , Ontário/epidemiologia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/prevenção & controle , Psicometria , Transtornos do Comportamento Social/epidemiologia , Transtornos do Comportamento Social/etiologia , Inquéritos e Questionários
17.
Brain Cogn ; 77(1): 106-12, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21632162

RESUMO

Humans have a tendency to perceive motion even in static images that simply "imply" movement. This tendency is so strong that our memory for actions depicted in static images is distorted in the direction of implied motion - a phenomenon known as representational momentum (RM). In the present study, we created an RM display depicting a pattern of implied (clockwise) rotation of a rectangle. Young adults viewers' memory of the final position of the test rectangle was biased in the direction of continuing rotation, but older adults did not show a similar memory bias. We discuss several possible explanations for this group difference, but argue that the failure of older adults to shown an RM effect most likely reflects age-related changes in areas of the brain involved in processing real and implied motion.


Assuntos
Envelhecimento/fisiologia , Imaginação , Memória de Curto Prazo/fisiologia , Rememoração Mental/fisiologia , Percepção de Movimento/fisiologia , Adaptação Psicológica , Adolescente , Adulto , Fatores Etários , Idoso , Formação de Conceito/fisiologia , Feminino , Humanos , Ilusões , Masculino , Adulto Jovem
18.
Brain Cogn ; 72(3): 464-71, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20149512

RESUMO

The term representational momentum (RM) refers to the idea that our memory representations for moving objects incorporate information about movement - a fact that can lead us to make errors when judging an object's location (the RM effect). In this study, we explored the RM effect in a sample of children born very prematurely and a sample born at term. Because preterm children are known to be at risk for problems with motion perception, we anticipated that they would show a weaker or absent RM effect. This prediction was confirmed. In addition, we found that, in both samples of children, 5-6year olds showed a reduced RM effect compared to 7-9year olds. These results demonstrate that the ability to represent motion information in memory shows continued development over this age range, and may help to elucidate factors contributing to problems with fine and gross motor planning and execution that have been observed in the preterm population. We propose that problems affecting the formation, maintenance, or use of predictive models, or motion extrapolation skills, may have cascading effects on the development of other abilities.


Assuntos
Formação de Conceito , Memória , Percepção de Movimento , Psicologia da Criança , Enquadramento Psicológico , Estudos de Casos e Controles , Criança , Desenvolvimento Infantil , Pré-Escolar , Feminino , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Julgamento , Masculino , Aprendizagem por Probabilidade , Valores de Referência
20.
Child Neuropsychol ; 11(6): 479-95, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16306023

RESUMO

The present study was designed: (1) to investigate the long-term consequences of both the presence and the severity of periventricular brain injury (PVBI) on intellectual, academic, and cognitive outcome in extremely-low-birthweight (ELBW: < 1,000 grams) children at a mean age of 11 years; and (2) to determine the nature of the underlying difficulties associated with academic problems in these children. The results indicated that ELBW children without PVBI performed as well as full-term children on intelligence, academic, and cognitive ability tests. In contrast, ELBW children with mild and severe PVBI achieved significantly lower scores than either ELBW children without PVBI or children who were born at term. A second analysis indicated that, after accounting for Full Scale IQ, working memory and phonological processing were significant predictors of reading and spelling performance in ELBW children. These findings suggest that the presence and severity of PVBI, and not ELBW status alone, is associated with performance on tests of intelligence, and academic and cognitive functioning, and that some of the same factors known to be associated with learning disabilities in full-term children contribute to learning disabilities in ELBW children.


Assuntos
Agrafia/etiologia , Dano Encefálico Crônico/diagnóstico , Hemorragia Cerebral/diagnóstico , Ventrículos Cerebrais , Dislexia/etiologia , Recém-Nascido de Baixo Peso , Doenças do Prematuro/diagnóstico , Recém-Nascido de muito Baixo Peso , Leucomalácia Periventricular/diagnóstico , Aprendizagem Verbal/fisiologia , Adolescente , Criança , Pré-Escolar , Escolaridade , Feminino , Seguimentos , Humanos , Lactente , Recém-Nascido , Inteligência/fisiologia , Masculino , Testes Neuropsicológicos , Fonética
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