Non-Verbal Paradigm for Assessing Individuals for Absolute Pitch

Autistic individuals have been observed to demonstrate high intelligence through musical communication, leading to many empirical studies on this topic. Absolute Pitch (AP) has been a captivating phenomenon for researchers, although there has been disagreement regarding AP percentages among the population and appropriate testing methods for AP. This study analyzed data collected from 118 people, using a pitch matching paradigm designed specifically to be inclusive of those who are likely to have note-naming difficulty due to communication challenges. Thirty-eight participants were autistic individuals, 32% of which were considered to have severe language impairment. Twelve other participants had other developmental disorders. All but 1 of the 38 autistics (97%) demonstrated exceptional and instantaneous pitch matching abilities on piano. Ten of the 12 (83%) with other developmental disorders demonstrated this ability, and approximately half (53%) of neurotypicals were able to exhibit this ability. Our numbers indicate that with a more inclusive paradigm for assessing AP, it may be demonstratable in close to 50% of the population, and near 100% in the autistic population. This testing method represents a neurodiversity-friendly and fully inclusive, non-verbal paradigm for demonstrating AP.     

The day of the week when you were born in 700 ms: calendar computation in an Autistic savant

Some individuals are able to determine the weekday of a given date in a few seconds (finding for instance that June 12, 1900, was a Tuesday). This ability has fascinated scientists for many years because it is predominantly observed in people with limited intelligence and may appear very early in life. Exceptional visual memory, exceptional concentration abilities, or privileged access to lower levels of information not normally available through introspection have been advanced to explain such phenomena. In the present article, the authors show that a simple cognitive model can explain all aspects of the performance of Donny, a young autistic savant who is possibly the fastest and most accurate calendar prodigy ever described.     

Atypical memory performance in an autistic savant.

This study explored the mechanisms underlying the hypermnesia of an autistic savant (NM) through three experiments. The first two served to assess whether absence of interference was responsible for NM's exceptional list memory. The third investigated the type of cues used in recall. Results indicated absence of retroactive interference but presence of slight proactive interference in list recall of proper names. Normal interference effects were found, however, in list recall of common nouns. Exceptional performance was also demonstrated in a missing-name task involving spatial and verbal recall cues. The findings suggest that the outstanding episodic memory presented by some savant persons with autism might be related to an abnormally high resistance to interference.     

Atypical Memory Performance in an Autistic Savant

This study explored the mechanisms underlying the hypermnesia of an autistic savant (NM) through three experiments. The first two served to assess whether absence of interference was responsible for NM's exceptional list memory. The third investigated the type of cues used in recall. Results indicated absence of retroactive interference but presence of slight proactive interference in list recall of proper names. Normal interference effects were found, however, in list recall of common nouns. Exceptional performance was also demonstrated in a missingname task involving spatial and verbal recall cues. The findings suggest that the outstanding episodic memory presented by some savant persons with autism might be related to an abnormally high resistance to interference.     

Savant-like numerosity skills revealed in normal people by magnetic pulses

Oliver Sacks observed autistic twins who instantly guessed the exact number of matchsticks that had just fallen on the floor, saying in unison "111". To test the suggestion that normal individuals have the capacity for savant numerosity, we temporarily simulated the savant condition in normal people by inhibiting the left anterior temporal lobe of twelve participants with repetitive transcranial magnetic stimulation (rTMS). This site has been implicated in the savant condition. Ten participants improved their ability to accurately guess the number of discrete items immediately following rTMS and, of these, eight became worse at guessing as the effects of the pulses receded. The probability of as many as eight out of twelve people doing best just after rTMS and not after sham stimulation by chance alone is less than one in one thousand.     

Differences in visual orienting between persons with Down or fragile X syndrome

The voluntary and reflexive orienting abilities of persons with Down syndrome and fragile X syndrome, at average MA levels of approximately 4 and 7 years, were compared with an RT task. Reflexive orienting abilities appeared to develop in accordance with MA for the participants with Down syndrome but not for those with fragile X syndrome. However, both groups showed delayed voluntary orienting. The group differences in reflexive orienting at the low MA level reinforce the practice of separating etiologies and highlight the contribution of rudimentary attentional processes in the study of individuals with mental retardation.     

Expressive drawing ability in children with autism

The autistic impairments in emotional and social competence, imagination and generating ideas predict qualitative differences in expressive drawings by children with autism beyond that accounted by any general learning difficulties. In a sample of 60 5–19‐year‐olds, happy and sad drawings were requested from 15 participants with non‐savant autism and compared with those drawn by three control groups matched on either degree of learning difficulty (MLD), mental age (MA) or chronological age (CA). All drawings were rated by two artists on a 7‐point quality of expression scale. Contrary to our predictions, the drawings from the autistic group were rated similar to those of the MA and MLD groups. Analysis of the people and social content of the drawings revealed that although children with autism did not draw fewer people, they did draw more immature forms than mental age controls. Furthermore, there was tentative evidence that fewer social scenes were produced by the autism sample. We conclude that the overall merit of expressive drawing in autism is commensurate with their general learning difficulties, but the social/emotional impairment in autism affects their drawings of people and social scenes.     

Local and global processing in savant artists with autism

We explored the hypothesis that an enhanced local processing style is characteristic of both art and autism spectrum disorder (ASD) by examining local and global processing in savant artists with ASD. Specifically, savant artists were compared against non-talented individuals with ASD or mild/moderate learning difficulties (MLD), as well as artistically talented or nontalented students, on the block-design task and meaningful and abstract versions of the embedded figures test (EFT). Results demonstrated that there were no significant differences between the meaningful and abstract versions of the EFT, in any of the groups. This suggests that the primary process governing performance on this task was perceptual (local), rather than conceptual (global). More interestingly, the savant artists performed above the level of the ASD and MLD groups on the block-design test, but not the EFT. Despite both the block-design task and the EFT measuring local processing abilities, we suggest that this result is due to the block-design task being an active construction task (requiring the conversion of a visual input into a motor output), whereas the EFT is a passive recognition task. Therefore, although an enhanced local processing style is an important aspect of savant artistic talent, motor control also appears to be a necessary skill.     

孤独症群体的孤岛能力

孤岛能力是个体在一般能力普遍落后的情况下某一个或几个领域表现出来的与其整体能力极不匹配的超常能力。令人惊讶的是,人类近一半的孤岛能力产自于孤独症谱系障碍。本文系统回顾了孤独症孤岛能力的特征、传统的各种心理学解释和当前最有力的认知神经科学发现:脑病理性优势假说和孤独症特质假说。在此基础上,本文认为脑优势中心的转移和混乱的大脑连接可能是孤岛能力产生的前提,而特定技能的遗传和后天的反复练习则是孤岛能力得以强化和巩固的重要因素。     

Family Stress and Adjustment as Perceived by Parents of Children with Autism or Down Syndrome: Implications for Intervention

ABSTRACT

This study examined stress and adjustment in parents of three groups of families: those with an autistic child, those with a Down syndrome child, and those with only developmentally normal children. A total of 54 families participated, with 18 representing each group. Parents of autistic children generally reported more family stress and adjustment problems than parents of children with Down Syndrome who, in turn, reported more stress and adjustment problems than parents of developmentally normal children. Although parents of disabled children reported more stress associated with caring for their child, they generally showed resilience in adjusting to the presence of a severely disabled family member. Implications for family intervention are discussed.     

External source monitoring in a real‐life event: developmental changes in ability to identify source persons

The present study investigated young children's and adults' external source‐monitoring abilities with respect to facial identification accuracy for complex live events. Five‐ to 6‐ year‐olds and adults watched a magic show in which three different female magicians (i.e. source persons) performed three different kinds of magic tricks each. After approximately 1 month, the participants were asked to recognize what kinds of magic tricks had been performed, to make face identifications as to which magician had performed those magic tricks and to recognize those magicians' attributes. Results showed that both young children and adults had more difficulty with identifying source persons than recognizing them in a real‐life event in which a number of persons appeared. Especially for young children, low credibility was shown not only for the source memories but also for the recognition memories of the source person attributes. Copyright © 2007 John Wiley & Sons, Ltd.     

Individual differences in rates of change in cognitive abilities of older persons

The authors examined change in cognitive abilities in older Catholic clergy members. For up to 6 years, participants underwent annual clinical evaluations, which included a battery of tests from which summary measures of 7 abilities were derived. On average, decline occurred in each ability and was more rapid in older persons than in younger persons. However, wide individual differences were evident at all ages. Rate of change in a given domain was not strongly related to baseline level of function in that domain but was moderately associated with rates of change in other cognitive domains. The results suggest that change in cognitive function in old age primarily reflects person-specific factors rather than an inevitable developmental process.     

Placing inspection time, reaction time, and perceptual speed in the broader context of cognitive ability: The VPR model in the Lothian Birth Cohort 1936

The idea that information processing speed is related to cognitive ability has a long history. Much evidence has been amassed in its support, with respect to both individual differences in general intelligence and developmental trajectories. Two so-called elementary cognitive tasks, reaction time and inspection time, have been used to compile this evidence, but most studies have used either one or the other. Relations between speed and fluid intelligence have tended to be stronger than those between speed and crystallized intelligence, but studies testing this have confounded verbal abilities with crystallized intelligence and spatial/perceptual abilities with fluid intelligence. Questions have also been raised regarding whether speed contributes directly to general intelligence or to more specific cognitive abilities to which general intelligence also contributes. We used 18 ability and speed measures in the Lothian Birth Cohort 1936, assessed at approximately age 70, to construct alternative versions of the Verbal-Perceptual-Image Rotation (Johnson & Bouchard, 2005a) model of cognitive ability to test different hypotheses regarding these issues. Though differences in the extents to which our models fit the data were relatively small, they suggested that reaction and inspection time tasks were comparable indicators of information processing speed with respect to general intelligence, that verbal and spatial abilities were similarly related to information processing speed, and that spatial, verbal, and perceptual speed abilities were more directly related to information processing speed than was general intelligence. We discuss the theoretical implications of these results.     

Rubinstein-Taybi syndrome.

Rubinstein-Taybi Syndrome was first described in 1957 but only in 1963 as a distinguishable type of moderate mental retardation. The cause is still unknown although some type of genetic origin is possible. No consistent chromosomal abnormality has been demonstrated, the chromosomal analysis is normal, and cases are generally not considered hereditary. The recurrent risk for siblings is approximately 0.1% but may be as high as 50% for offspring of patients with the syndrome. The Rubinstein-Taybi syndrome is not at present detectable before birth and is evenly found in both males and females. The syndrome was thought to be rare but an increase in the number of reported cases each year suggests it is not as rare as estimated. It is thought to occur in about 1 in 300,000 births, and since it has become readily identifiable, more than 400 cases have been reported worldwide.     

Sensory-motor deficits in children with developmental coordination disorder, attention deficit hyperactivity disorder and autistic disorder

Children who have been diagnosed with any one developmental disorder are very likely to meet diagnostic criteria for some other developmental disorder. Although comorbidity has long been acknowledged in childhood disorders, little is understood about the mechanisms that are responsible for the high level of comorbidity. In a series of studies, we have investigated the link between sensory-motor deficits and developmental disorders. Poor sensory-motor integration has long been implicated as a cause of motor problems in developmental disorders such as developmental coordination disorder (DCD), and our recent research has also investigated sensory-motor deficits in children with attention deficit hyperactivity disorder (ADHD) and autistic disorder. Based on a critical examination of relevant literature and some of our recent research findings, we argue that the importance of poor sensory-motor functioning in discriminating children with different disorders has been underestimated. Poor sensory-motor coordination appears to be linked to DCD, but not ADHD. Also, sensory-motor deficits in children with DCD and autistic disorder may provide insight into some of the social difficulties found in these groups of children. This research will increase our understanding of why children with one developmental disorder typically also have problems in other areas.     

自闭症儿童依恋研究述评

摘要　　研究者曾一度认为自闭症儿童无法建立起依恋关系。本文系统回顾了自闭症儿童依恋研究的最新进展,将自闭症儿童是否存在依恋行为（尤其是安全型依恋行为）、依恋发展解释理论、研究方法、类型分布以及影响因素等问题进行了详细梳理,并结合研究分析,提出有关自闭症儿童依恋研究的几点启示,以供参考。     

The structured representation of information in long-term memory: A possible explanation for the accomplishments of “idiots savants”

Traditional accounts of the “idiot savant”—the development of a superior skill in otherwise subnormal individuals—are challenged through the examination of two cases, a pair of twins with extraordinary numerical ability but otherwise moronic, and Nadia, an autistic girl with extraordinary drawing ability. It is suggested that these phenomenal but particular skills are due to the functional reallocation of representational space in long-term memory. The hierarchical schematic organization of the mnemonic space, normally used for a range of conventional skills such as language, is employed instead for the hypertrophy of one-particular skill. What may appear to be feats of rapid calculation or artistic creativity actually represent automatic routings through long-term memory and translation into motor activity, possibly attributable to an unorthodox context of socialisation and social interaction. Evidence from such cases therefore proves to be inconclusive with regard to determining the nature of intelligence.     

Family Caregivers of Persons With Spinal Cord Injury: Predicting Caregivers at Risk for Probable Depression

OBJECTIVE: To determine the percentage of family caregivers of persons with spinal cord injury (SCI) with probable depression and to test the hypothesis that dysfunctional problem-solving abilities would be significantly predictive of risk status after taking into account important demographic characteristics and caregiver health. DESIGN: Correlational and logistic regression analyses of data collected in a cross-sectional design. PARTICIPANTS: Eighteen men and 103 women caregivers (mean age of caregivers = 45.66 years, SD = 12.88) of individuals with SCI. MAIN OUTCOME MEASURE: The Inventory to Diagnose Depression. RESULTS: Nineteen caregivers (15.7%) met criteria on the Inventory to Diagnose Depression for a major depressive disorder. A dysfunctional problem-solving style was significantly predictive of caregiver depression, regardless of the severity of physical impairment of the care recipient or the physical health of the caregiver and caregiver demographic variables. CONCLUSIONS: The percentage of caregivers with probable depressive disorder may parallel that observed among persons with SCI, using a more conservative self-report measure designed to assess symptoms associated with a depressive syndrome. Family caregivers with a dysfunctional problem-solving style and assisting individuals with more severe injuries may have probable depression.     

Memory illusions: false recall and recognition in adults with Asperger's syndrome

As persons on the autistic spectrum are known not to use semantic features of word lists to aid recall, they might show diminished susceptibility to illusory memories that typically occur with lists of associated items. Alternatively, since such individuals also have poor source monitoring, they might show greater susceptibility. The authors found that adults with Asperger's syndrome (n = 10) recalled similar proportions of a nonpresented strong associate of the study list items, compared with controls (n = 15). In Experiment 2, rates of true and false recognition of study list associates did not differ significantly between Asperger (n = 10) and control (n = 10) participants. Moreover, the Asperger participants made fewer remember and more know judgments than controls for veridical but not for false recognitions. Thus, deficits found in some aspects of memory in people with Asperger's syndrome do not affect their susceptibility to memory illusions.     

CHRM3基因与孤独症谱系障碍

孤独症谱系障碍是一类具有遗传基础的儿童发展障碍疾病。近些年, 研究者们从分子病理学层面发现中枢胆碱能神经系统异常与孤独症患者认知和行为异常存在相关性。尸检研究、临床案例、动物模型研究均发现毒蕈碱型(M型)乙酰胆碱受体异常和孤独症的发生有着密切的关系。在以小鼠为模型的行为学研究中, 编码毒蕈碱型乙酰胆碱受体Ⅲ亚型的CHRM3基因突变会导致小鼠出现认知障碍、刻板行为等孤独症样表现。深入了解CHRM3基因的功能将能够帮助研究者进一步解释孤独症的相关行为特征, 为孤独症儿童教育方案的制定提供新的思路和方法。