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https://www.readbyqxmd.com/read/29160023/the-self-reference-effect-on-perception-undiminished-in-adults-with-autism-and-no-relation-to-autism-traits
#1
David M Williams, Toby Nicholson, Catherine Grainger
Memory for (and perception of) information about the self is superior to memory for (and perception of) other kinds of information. This self-reference effect (SRE) in memory appears diminished in ASD and related to the number of ASD traits manifested by neurotypical individuals (fewer traits = larger SRE). Here, we report the first experiments exploring the relation between ASD and the SRE in perception. Using a "Shapes" Task (Sui et al., Journal of Experimental Psychology: Human Perception and Performance, 38, 1105, 2012), participants learned to associate three different shapes (triangle, circle, square) with three different labels representing self, a familiar other, or an unfamiliar other (e...
November 21, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/29155494/modulating-attentional-biases-of-adults-with-autistic-traits-using-transcranial-direct-current-stimulation-a-pilot-study
#2
Michael C W English, Emma S Kitching, Murray T Maybery, Troy A W Visser
While neurotypical individuals over-attend to the left-side of centrally-presented visual stimuli, this bias is reduced in individuals with autism/high levels of autistic traits. Because this difference is hypothesized to reflect relative reductions in right-hemisphere activation, it follows that increasing right-hemisphere activation should increase leftward bias. We administered transcranial direct current stimulation (tDCS) over the right posterior parietal cortex to individuals with low levels (n = 19) and high levels (n = 19) of autistic traits whilst they completed a greyscales task...
November 20, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/29152993/program-experiences-of-adults-with-autism-their-families-and-providers-findings-from-a-focus-group-study
#3
Kaitlin H Koffer Miller, Mary Mathew, Stacy L Nonnemacher, Lindsay L Shea
A growing number of individuals with autism spectrum disorder are aging into adulthood. In the United States, Medicaid is the primary payer for services for adults with autism spectrum disorder, yet there are few funded programs that provide dedicated supports to this population. This study examined the experiences of adults with autism spectrum disorder in two Medicaid-funded programs in Pennsylvania through focus groups. Researchers conducted 20 focus groups with a total of 36 adults with autism spectrum disorder, 32 family members, 32 direct care staff, and 20 program administrators...
February 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/29152901/broad-spectrum-of-neuropsychiatric-phenotypes-associated-with-white-matter-disease-in-pten-hamartoma-tumor-syndrome
#4
Tugce B Balci, Jorge Davila, Denice Lewis, Addo Boafo, Erick Sell, Julie Richer, Sarah M Nikkel, Christine M Armour, Eva Tomiak, Matthew A Lines, Sarah L Sawyer
White matter lesions have been described in patients with PTEN hamartoma tumor syndrome (PHTS). How these lesions correlate with the neurocognitive features associated with PTEN mutations, such as autism spectrum disorder (ASD) or developmental delay, has not been well established. We report nine patients with PTEN mutations and white matter changes on brain magnetic resonance imaging (MRI), eight of whom were referred for reasons other than developmental delay or ASD. Their clinical presentations ranged from asymptomatic macrocephaly with normal development/intellect, to obsessive compulsive disorder, and debilitating neurological disease...
November 20, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/29152038/associations-between-interoceptive-cognition-and-age-in-autism-spectrum-disorder-and-typical-development
#5
Lisa E Mash, Kimberly B Schauder, Channing Cochran, Sohee Park, Carissa J Cascio
Interoceptive awareness is linked to emotional and social cognition, which are impaired in individuals with autism spectrum disorder (ASD). It is unknown how this ability is associated with age in either typical or atypical development. We used a standard test of interoceptive accuracy (IA) to investigate these questions in children and adults with and without ASD. Perceived number of heartbeats over 4 time intervals was compared with actual heart rate to determine IA. Effects of group, age, IQ, heart rate, and mental counting ability on accuracy were assessed using multiple regression...
2017: Journal of Cognitive Education and Psychology: JCEP
https://www.readbyqxmd.com/read/29146941/developmental-excitatory-to-inhibitory-gaba-polarity-switch-is-disrupted-in-22q11-2-deletion-syndrome-a-potential-target-for-clinical-therapeutics
#6
Hayder Amin, Federica Marinaro, Davide De Pietri Tonelli, Luca Berdondini
Individuals with 22q11.2 microdeletion syndrome (22q11.2 DS) show cognitive and behavioral dysfunctions, developmental delays in childhood and risk of developing schizophrenia and autism. Despite extensive previous studies in adult animal models, a possible embryonic root of this syndrome has not been determined. Here, in neurons from a 22q11.2 DS mouse model (Lgdel (+/-)), we found embryonic-premature alterations in the neuronal chloride cotransporters indicated by dysregulated NKCC1 and KCC2 protein expression levels...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29145754/cortical-and-subcortical-brain-morphometry-differences-between-patients-with-autism-spectrum-disorder-and-healthy-individuals-across-the-lifespan-results-from-the-enigma-asd-working-group
#7
Daan van Rooij, Evdokia Anagnostou, Celso Arango, Guillaume Auzias, Marlene Behrmann, Geraldo F Busatto, Sara Calderoni, Eileen Daly, Christine Deruelle, Adriana Di Martino, Ilan Dinstein, Fabio Luis Souza Duran, Sarah Durston, Christine Ecker, Damien Fair, Jennifer Fedor, Jackie Fitzgerald, Christine M Freitag, Louise Gallagher, Ilaria Gori, Shlomi Haar, Liesbeth Hoekstra, Neda Jahanshad, Maria Jalbrzikowski, Joost Janssen, Jason Lerch, Beatriz Luna, Mauricio Moller Martinho, Jane McGrath, Filippo Muratori, Clodagh M Murphy, Declan G M Murphy, Kirsten O'Hearn, Bob Oranje, Mara Parellada, Alessandra Retico, Pedro Rossa, Katya Rubia, Devon Shook, Margot Taylor, Paul M Thompson, Michela Tosetti, Gregory L Wallace, Fengfeng Zhou, Jan K Buitelaar
OBJECTIVE: Neuroimaging studies show structural differences in both cortical and subcortical brain regions in children and adults with autism spectrum disorder (ASD) compared with healthy subjects. Findings are inconsistent, however, and it is unclear how differences develop across the lifespan. The authors investigated brain morphometry differences between individuals with ASD and healthy subjects, cross-sectionally across the lifespan, in a large multinational sample from the Enhancing Neuroimaging Genetics Through Meta-Analysis (ENIGMA) ASD working group...
November 17, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/29142062/the-serine-protease-inhibitor-neuroserpin-is-required-for-normal-synaptic-plasticity-and-regulates-learning-and-social-behavior
#8
Rebecca Reumann, Ricardo Vierk, Lepu Zhou, Frederice Gries, Vanessa Kraus, Julia Mienert, Eva Romswinkel, Fabio Morellini, Isidre Ferrer, Chiara Nicolini, Margaret Fahnestock, Gabriele Rune, Markus Glatzel, Giovanna Galliciotti
The serine protease inhibitor neuroserpin regulates the activity of tissue-type plasminogen activator (tPA) in the nervous system. Neuroserpin expression is particularly prominent at late stages of neuronal development in most regions of the central nervous system (CNS), whereas it is restricted to regions related to learning and memory in the adult brain. The physiological expression pattern of neuroserpin, its high degree of colocalization with tPA within the CNS, together with its dysregulation in neuropsychiatric disorders, suggest a role in formation and refinement of synapses...
December 2017: Learning & Memory
https://www.readbyqxmd.com/read/29138391/maternal-impulse-control-disability-and-developmental-disorder-traits-are-risk-factors-for-child-maltreatment
#9
Yoshiyuki Tachibana, Kenji Takehara, Naoko Kakee, Masashi Mikami, Eisuke Inoue, Rintaro Mori, Erika Ota, Tomoe Koizumi, Makiko Okuyama, Takahiko Kubo
Previous work has suggested that maternal developmental disorder traits related to autism spectrum disorder (ASD) and attention-deficit hyperactivity disorder (ADHD) are significantly associated with child maltreatment. However, there may be other important maternal characteristics that contribute to child maltreatment. We hypothesized that maternal impulse control disability may also affect child maltreatment in addition to maternal developmental disorder traits. We aimed to test this hypothesis via a cohort study performed in Tokyo (n = 1,260)...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29119672/self-compassion-and-psychological-distress-in-parents-of-young-people-and-adults-with-intellectual-and-developmental-disabilities
#10
Suzanne Robinson, Richard P Hastings, Jonathan A Weiss, Jaffni Pagavathsing, Yona Lunsky
BACKGROUND: Parenting an individual with intellectual and developmental disabilities (IDD) can be challenging, particularly during adulthood. It is important to better understand ways of supporting families as individuals with IDD age. Self-compassion is a potential internal coping resource for parents, and is strongly linked to positive mental health outcomes, though research has yet to examine it in parents of adults with IDD. METHOD: The current study examines the association between self-compassion and measures of well-being for 56 parents of adults with IDD...
November 9, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/29118362/deconstructing-atypical-eye-gaze-perception-in-autism-spectrum-disorder
#11
Peter C Pantelis, Daniel P Kennedy
The ability to discern the target of another person's gaze is critical for social and linguistic development, but functions atypically in autism spectrum disorder (ASD). A multi-pronged approach allowed us to deconstruct this complex ability, to uncover the fundamental bases of this impairment. We analyzed performance on a novel gaze perception task with classical psychophysical metrics (precision and accuracy), principal component analysis (in the analysis of spatial biases), and Bayesian computational modeling (in the analysis of individual subjects' use of contextual salience cues)...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29116420/assessing-autism-in-adults-an-evaluation-of-the-developmental-dimensional-and-diagnostic-interview-adult-version-3di-adult
#12
William Mandy, Kiri Clarke, Michele McKenner, Andre Strydom, Jason Crabtree, Meng-Chuan Lai, Carrie Allison, Simon Baron-Cohen, David Skuse
We developed a brief, informant-report interview for assessing autism spectrum conditions (ASC) in adults, called the Developmental, Dimensional and Diagnostic Interview-Adult Version (3Di-Adult); and completed a preliminary evaluation. Informant reports were collected for participants with ASC (n = 39), a non-clinical comparison group (n = 29) and a clinical comparison group (n = 20) who had non-autistic mental health conditions. Mean administration time was 38 min (50 min for ASC). Internal consistency (αs ≥ 0...
November 7, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29116166/multiple-behavior-phenotypes-of-the-fragile-x-syndrome-mouse-model-respond-to-chronic-inhibition-of-phosphodiesterase-4d-pde4d
#13
Mark E Gurney, Patricia Cogram, Robert M Deacon, Christopher Rex, Michael Tranfaglia
Fragile-X syndrome (FXS) patients display intellectual disability and autism spectrum disorder due to silencing of the X-linked, fragile-X mental retardation-1 (FMR1) gene. Dysregulation of cAMP metabolism is a consistent finding in patients and in the mouse and fly FXS models. We therefore explored if BPN14770, a prototypic phosphodiesterase-4D negative allosteric modulator (PDE4D-NAM) in early human clinical trials, might provide therapeutic benefit in the mouse FXS model. Daily treatment of adult male fmr1 C57Bl6 knock-out mice with BPN14770 for 14 days reduced hyperarousal, improved social interaction, and improved natural behaviors such as nesting and marble burying as well as dendritic spine morphology...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29114236/patterns-of-joint-improvisation-in-adults-with-autism-spectrum-disorder
#14
Rachel-Shlomit Brezis, Lior Noy, Tali Alony, Rachel Gotlieb, Rachel Cohen, Yulia Golland, Nava Levit-Binnun
Recent research on autism spectrum disorders (ASDs) suggests that individuals with autism may have a basic deficit in synchronizing with others, and that this difficulty may lead to more complex social and communicative deficits. Here, we examined synchronization during an open-ended joint improvisation (JI) paradigm, called the mirror game (MG). In the MG, two players take turns leading, following, and jointly improvising motion using two handles set on parallel tracks, while their motion tracks are recorded with high temporal and spatial resolution...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29112530/the-prevalence-of-psychiatric-disorders-and-mental-health-services-utilization-by-parents-and-relatives-living-with-individuals-with-autism-spectrum-disorders-in-puerto-rico
#15
Ernesto Magallón-Neri, Dorilyz Vila, Katyana Santiago, Pedro García, Glorisa Canino
Knowledge about prevalence rates of psychiatric disorders and mental health services use among parents and relatives of persons with autism spectrum disorder (ASD) is limited, particularly when referring to epidemiologic samples. The current study is based on an island-wide probabilistic multistage cluster sample of adult individuals (N = 3062) living in Puerto Rico. Results showed a significantly higher rate of attention deficit hyperactivity disorder and serious mental illness in parents (n = 34) or relatives (n = 34) of ASD individuals, as compared with the Puerto Rico adult population as a whole...
November 4, 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/29105664/brain-behavior-participant-similarity-networks-among-youth-and-emerging-adults-with-schizophrenia-spectrum-autism-spectrum-or-bipolar-disorder-and-matched-controls
#16
Laura Stefanik, Lauren Erdman, Stephanie H Ameis, George Foussias, Benoit H Mulsant, Tina Behdinan, Anna Goldenberg, Lauren J O'Donnell, Aristotle N Voineskos
There is considerable heterogeneity in social cognitive and neurocognitive performance among people with schizophrenia spectrum disorders (SSD), autism spectrum disorders (ASD), bipolar disorder (BD), and healthy individuals. This study used Similarity Network Fusion (SNF), a novel data-driven approach, to identify participant similarity networks based on relationships among demographic, brain imaging, and behavioral data. T1-weighted and diffusion-weighted magnetic resonance images were obtained for 174 adolescents and young adults (aged 16-35 years) with an SSD (n=51), an ASD without intellectual disability (n=38), euthymic BD (n=34), and healthy controls (n=51)...
November 6, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29104007/perinatal-exposure-to-concentrated-ambient-particulates-results-in-autism-like-behavioral-deficits-in-adult-mice
#17
Jamie S Church, Pamella B Tijerina, Felicity J Emerson, Morgan A Coburn, Jason L Blum, Judith T Zelikoff, Jared J Schwartzer
Exposure to fine ambient particulates (PM2.5) during gestation or neonatally has potent neurotoxic effects. While biological and behavioral data indicate a vulnerability to environmental pollutants across distinct neurodevelopmental windows, the behavioral consequences following exposure across the entire developmental period remain unknown. Moreover, several epidemiological studies support a link between developmental exposure to air pollution and an increased risk of later receiving a diagnosis of autism spectrum disorders (ASD), a neurodevelopmental disorder that persists throughout life...
November 2, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/29099059/actions-of-brain-derived-neurotrophic-factor-and-glucocorticoid-stress-in-neurogenesis
#18
REVIEW
Tadahiro Numakawa, Haruki Odaka, Naoki Adachi
Altered neurogenesis is suggested to be involved in the onset of brain diseases, including mental disorders and neurodegenerative diseases. Neurotrophic factors are well known for their positive effects on the proliferation/differentiation of both embryonic and adult neural stem/progenitor cells (NSCs/NPCs). Especially, brain-derived neurotrophic factor (BDNF) has been extensively investigated because of its roles in the differentiation/maturation of NSCs/NPCs. On the other hand, recent evidence indicates a negative impact of the stress hormone glucocorticoids (GCs) on the cell fate of NSCs/NPCs, which is also related to the pathophysiology of brain diseases, such as depression and autism spectrum disorder...
November 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29092799/novel-drosophila-model-for-psychiatric-disorders-including-autism-spectrum-disorder-by-targeting-of-atp-binding-cassette-protein-a
#19
Ibuki Ueoka, Hitoshi Kawashima, Atsushi Konishi, Mikio Aoki, Ryo Tanaka, Hideki Yoshida, Toru Maeda, Mamiko Ozaki, Masamitsu Yamaguchi
Autism spectrum disorder (ASD) is characterized by persistent deficits in social communication and social interactions, as well as restricted, stereotyped patterns of behavior and interests. In addition, alterations in circadian sleep-wake rhythm are common in young children with ASD. Mutations in ATP binding cassette subfamily A member 13 (ABCA13) have been recently identified in a monkey that displays behavior associated with ASD. ABCA13, a member of the ABCA family of proteins, is predicted to transport lipid molecules and is expressed in the human trachea, testis, bone marrow, hippocampus, cortex, and other tissues...
October 29, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29090494/selective-patient-and-public-involvement-the-promise-and-perils-of-pharmaceutical-intervention-for-autism
#20
Ginny Russell, Sandy Starr, Chris Elphick, Raffaele Rodogno, Ilina Singh
BACKGROUND: Guidelines suggest the patient community should be consulted from the outset when designing and implementing basic biomedical research, but such patient communities may include conflicting views. We examined how engagement occurred in one such instance. OBJECTIVE: Our objective was to scrutinize patient and public involvement (PPI) by a pan-European biomedical consortium working to develop drugs to treat autism. We aimed to use this as an example to illustrate how PPI has been utilized in biomedical research...
October 31, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
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