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https://www.readbyqxmd.com/read/29427289/delay-aversion-in-attention-deficit-hyperactivity-disorder-is-mediated-by-amygdala-and-prefrontal-cortex-hyper-activation
#1
Jeroen Van Dessel, Edmund Sonuga-Barke, Gabry Mies, Jurgen Lemiere, Saskia Van der Oord, Sarah Morsink, Marina Danckaerts
BACKGROUND: Experimental research supports delay aversion as a motivational feature of attention deficit/hyperactivity disorder (ADHD). To investigate the neurobiology of delay aversion in ADHD, this study examined whether adolescents with ADHD display an unusually strong activation in affective brain regions in response to cues predicting forthcoming delay and whether these effects are (a) delay-dose dependent and (b) statistically mediate the association between ADHD and self-reported delay aversion...
February 10, 2018: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/29414488/examining-social-supply-among-nonmedical-prescription-stimulant-users-in-the-san-francisco-bay-area
#2
Fiona Murphy, Sheigla Murphy, Paloma Sales, Nicholas Lau
In the US, prescription stimulants are prescribed for a variety of conditions including attention deficit hyperactivity disorder (ADHD) and narcolepsy. Over the last two decades, dramatic increases in stimulant prescriptions have led to greater availability and increased risk for diversion and nonmedical use. Our own and other investigators' findings indicate that many drug "suppliers" do not fit into the traditional image of drug "dealers." These suppliers typically do not identify themselves as "dealers," but instead understand their drug distribution as sharing with people they know...
January 30, 2018: International Journal on Drug Policy
https://www.readbyqxmd.com/read/29347983/experiences-of-an-internet-based-support-and-coaching-model-for-adolescents-and-young-adults-with-adhd-and-autism-spectrum-disorder-a-qualitative-study
#3
Helena Sehlin, Britt Hedman Ahlström, Gerhard Andersson, Elisabet Wentz
BACKGROUND: There is a great demand for non-medical treatment and support targeting the needs of adolescents and young adults with autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD). There is also a lack of qualitative studies providing in-depth insight into these individuals' own experiences within this area. The current study aimed to explore how adolescents and young adults with ADHD, ASD or both experienced taking part in an internet-based support and coaching intervention...
January 18, 2018: BMC Psychiatry
https://www.readbyqxmd.com/read/29341214/cue-reactivity-habituation-and-eating-in-the-absence-of-hunger-in-children-with-loss-of-control-eating-and-attention-deficit-hyperactivity-disorder
#4
Anja Hilbert, Susanne Kurz, Daniela Dremmel, Susann Weihrauch Blüher, Simone Munsch, Ricarda Schmidt
OBJECTIVE: Childhood loss of control (LOC) eating and attention-deficit/hyperactivity disorder (ADHD) are highly comorbid conditions and present with disordered eating behaviors, such as overeating. This study sought to delineate shared and specific abnormalities in physiological, cognitive-motivational, and behavioral components of food-specific impulsivity in children with LOC eating and ADHD. Specifically, children's reactivity and habituation to food and eating in the absence of hunger were examined...
January 17, 2018: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/29336733/impaired-visuospatial-short-term-memory-in-children-with-adhd
#5
Tadamasa Narimoto, Naomi Matsuura, Michio Hiratani
Previous studies provide clear evidence that visuospatial memory performance in children with attention-deficit/hyperactivity disorder (ADHD) is significantly lower than in typically developing children. In the present study, we investigated a major cause of their low performance using a spatial span test. Possibly, inattention resulting from lack of motivation or interest causes their low performance so that they do not correctly encode targets to be remembered. On the other hand, a deficit in temporary maintenance per se may cause their low performance; that is, their inefficient use of rehearsal during a retention interval may lead to memory traces' fast decay...
January 16, 2018: Journal of Genetic Psychology
https://www.readbyqxmd.com/read/29316800/pro-dopamine-regulator-kb220z-attenuates-hoarding-and-shopping-behavior-in-a-female-diagnosed-with-sud-and-adhd
#6
Thomas McLaughlin, Kenneth Blum, Bruce Steinberg, Edward J Modestino, Lyle Fried, David Baron, David Siwicki, Eric R Braverman, Rajendra D Badgaiyan
Background Addictive-like behaviors (e.g., hoarding and shopping) may be the result of the cumulative effects of dopaminergic and other neurotransmitter genetic variants as well as elevated stress levels. We, therefore, propose that dopamine homeostasis may be the preferred goal in combating such challenging and unwanted behaviors, when simple dopaminergic activation through potent agonists may not provide any resolution. Case presentation C.J. is a 38-year-old, single, female, living with her mother. She has a history of substance use disorder as well as attention deficit hyperactivity disorder, inattentive type...
January 10, 2018: Journal of Behavioral Addictions
https://www.readbyqxmd.com/read/29143699/are-there-distinct-cognitive-and-motivational-sub-groups-of-children-with-adhd
#7
Rikke Lambek, Edmund Sonuga-Barke, Rosemary Tannock, Anne Virring Sørensen, Dorte Damm, Per Hove Thomsen
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is proposed to be a neuropsychologically heterogeneous disorder that encompasses two distinct sub-groups, one with executive function (EF) deficits and one with delay aversion (DA). However, such claims have often been based on studies that have operationalized neuropsychological deficits using a categorical approach - using intuitive but rather arbitrary, clinical cut-offs. The current study applied an alternative empirical approach to sub-grouping in ADHD, latent profile analysis (LPA), and attempted to validate emerging subgroups through clinically relevant correlates...
November 16, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/29090967/the-qualitative-interview-study-of-persistent-and-nonpersistent-substance-use-in-the-mta-sample-characteristics-frequent-use-and-reasons-for-use
#8
James M Swanson, Timothy Wigal, Peter S Jensen, John T Mitchell, Thomas S Weisner, Desiree Murray, L Eugene Arnold, Lily Hechtman, Brooke S G Molina, Elizabeth B Owens, Stephen P Hinshaw, Katherine Belendiuk, Andrea Howard, Sharon B Wigal, Page Sorensen, Annamarie Stehli
OBJECTIVE: To evaluate participants' perceptions about frequent use and reasons for substance use (SU) in the qualitative interview study, an add-on to the multimodal treatment study of ADHD (MTA). METHOD: Using the longitudinal MTA database, 39 ADHD cases and 19 peers with Persistent SU, and 86 ADHD cases and 39 peers without Persistent SU were identified and recruited. In adulthood, an open-ended interview was administered, and SU excerpts were indexed and classified to create subtopics (frequent use and reasons for use of alcohol, marijuana, and other drugs)...
October 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28989230/delivering-parent-teen-therapy-for-adhd-through-videoconferencing-a-preliminary-investigation
#9
Margaret H Sibley, Jonathan S Comer, Jaife Gonzalez
Adolescents with ADHD demonstrate notoriously poor treatment utilization. Barriers to access have been partially addressed through tailored therapy content and therapist delivery style; yet, additional challenges to engaging this population remain. To leverage modern technology in support of this aim, the current study investigates parent-teen therapy for ADHD delivered over a videoconferencing format. In this preliminary feasibility study, teens and parents (N=20) received an empirically supported dyadic therapy that incorporates skills-based modules with motivational interviewing...
September 2017: Journal of Psychopathology and Behavioral Assessment
https://www.readbyqxmd.com/read/28964912/functional-coding-variation-in-the-presynaptic-dopamine-transporter-associated-with-neuropsychiatric-disorders-drives-enhanced-motivation-and-context-dependent-impulsivity-in-mice
#10
Gwynne L Davis, Adele Stewart, Gregg D Stanwood, Raajaram Gowrishankar, Maureen K Hahn, Randy D Blakely
Recent genetic analyses have provided evidence that clinical commonalities associated with different psychiatric diagnoses often have shared mechanistic underpinnings. The development of animal models expressing functional genetic variation attributed to multiple disorders offers a salient opportunity to capture molecular, circuit and behavioral alterations underlying this hypothesis. In keeping with studies suggesting dopaminergic contributions to attention-deficit hyperactivity disorder (ADHD), bipolar disorder (BPD) and autism spectrum disorder (ASD), subjects with these diagnoses have been found to express a rare, functional coding substitution in the dopamine (DA) transporter (DAT), Ala559Val...
January 30, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/28956509/multiple-causal-pathways-in-attention-deficit-hyperactivity-disorder-do-emerging-executive-and-motivational-deviations-precede-symptom-development
#11
Ursula Pauli-Pott, Susan Schloß, Monika Heinzel-Gutenbrunner, Katja Becker
The multiple causal pathways model on the etiology of attention-deficit/hyperactivity disorder (ADHD) is well established. However, developmental implications of the model are not yet sufficiently analyzed. The model implies that critical neural and neuropsychological deviations from normative development precede secondarily developing ADHD symptoms. Cognitive, "cool" inhibitory control (CIC) and reward-related, "hot" functions (RRF) are regarded as neuropsychological basic deficits that indicate independent causal pathways...
September 28, 2017: Child Neuropsychology: a Journal on Normal and Abnormal Development in Childhood and Adolescence
https://www.readbyqxmd.com/read/28946880/behavioral-sensitivity-of-japanese-children-with-and-without-adhd-to-changing-reinforcer-availability-an-experimental-study-using-signal-detection-methodology
#12
Emi Furukawa, Shizuka Shimabukuro, Brent Alsop, Gail Tripp
BACKGROUND: Most research on motivational processes in attention deficit hyperactivity disorder (ADHD) has been undertaken in Western Europe and North America. The extent to which these findings apply to other cultural groups is unclear. The current study evaluated the behavioral sensitivity of Japanese children with and without ADHD to changing reward availability. Forty-one school-aged children, 19 diagnosed with DSM-IV ADHD, completed a signal-detection task in which correct discriminations between two stimuli were associated with different reinforcement frequencies...
September 25, 2017: Behavioral and Brain Functions: BBF
https://www.readbyqxmd.com/read/28921780/factors-associated-with-attrition-in-substance-using-patients-enrolled-in-an-intensive-outpatient-program
#13
James Mckowen, Nicholas Carrellas, Courtney Zulauf, Emin Nalan Ward, Ronna Fried, Timothy Wilens
BACKGROUND AND OBJECTIVES: Data suggest individuals with substance use disorders (SUD) have high rates of attrition from treatment and exhibit impairments on measures of executive functioning (EF). The primary aim of this pilot study was to investigate if EF is associated with attrition from a 1 month intensive outpatient program (IOP) for SUD, and examine the feasibility of implementing the project. METHODS: Baseline neurocognitive functioning was assessed by the Cambridge Neuropsychological Test Automated Battery (CANTAB) and the self-reported Behavior Rating Inventory of Executive Functioning (BRIEF-A) questionnaire...
September 18, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28913698/reduced-value-driven-attentional-capture-among-children-with-adhd-compared-to-typically-developing-controls
#14
Anthony W Sali, Brian A Anderson, Steven Yantis, Stewart H Mostofsky, Keri S Rosch
The current study examined whether children with ADHD were more distracted by a stimulus previously associated with reward, but currently goal-irrelevant, than their typically-developing peers. In addition, we also probed the associated cognitive and motivational mechanisms by examining correlations with other behavioral tasks. Participants included 8-12 year-old children with ADHD (n = 30) and typically developing controls (n = 26). Children were instructed to visually search for color-defined targets and received monetary rewards for accurate responses...
September 15, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28857587/factor-structure-and-predictive-validity-of-a-homework-motivation-measure-for-use-with-middle-school-students-with-attention-deficit-hyperactivity-disorder-adhd
#15
Joshua M Langberg, Zoe R Smith, Melissa R Dvorsky, Stephen J Molitor, Elizaveta Bourchtein, Laura D Eddy, Hana-May Eadeh, Lauren E Oddo
Many students with attention-deficit/hyperactivity disorder (ADHD) exhibit deficits in motivation to pursue long-term goals. Students with ADHD have particular difficulty with motivation to complete homework-related tasks and often fail to complete assignments. Although these problems are common and may impact academic performance, no homework-motivation measures have been validated for use with students with ADHD. The primary goal of the present study was to evaluate the factor structure and predictive validity of a homework-motivation measure based upon the expectancy-value theory of achievement motivation...
August 31, 2017: School Psychology Quarterly
https://www.readbyqxmd.com/read/28845720/creativity-in-adhd-goal-directed-motivation-and-domain-specificity
#16
Nathalie Boot, Barbara Nevicka, Matthijs Baas
OBJECTIVE: This research aimed to provide explanations for the inconsistent findings regarding creativity in ADHD. METHOD: In Study 1, we assessed real-world creative achievements and intrinsic motivation during idea generation in adults with ADHD and compared these with controls. In Study 2, we manipulated competition during idea generation to investigate effects on idea originality in adults with ADHD versus controls, and assessed creativity in specific domains...
August 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28814878/heavy-drinking-in-university-students-with-and-without-attention-deficit-hyperactivity-disorder-contributions-of-drinking-motives-and-protective-behavioral-strategies
#17
Andrea L Howard, Tyler R Pritchard
This study examined rates of heavy drinking and alcohol problems in relation to drinking motives and protective behavioral strategies in university students with a documented current diagnosis of attention-deficit/hyperactivity disorder (ADHD; n = 31) compared with students with no history of ADHD (n = 146). Participants completed a Web-based questionnaire, and logistic regression models tested interactions between ADHD/comparison group membership and motives and protective strategies. Group differences in rates of heavy drinking and alcohol problems were not statistically significant, but medium-sized risk ratios showed that students without ADHD reported heavy drinking at a rate 1...
2017: Substance Abuse: Research and Treatment
https://www.readbyqxmd.com/read/28741623/effects-of-suvorexant-a-dual-orexin-hypocretin-receptor-antagonist-on-impulsive-behavior-associated-with-cocaine
#18
Taylor A Gentile, Steven J Simmons, Mia N Watson, Krista L Connelly, Eugen Brailoiu, Yanan Zhang, John W Muschamp
Hypothalamic hypocretin (orexin) peptides mediate arousal, attention, and reward processing. Fibers containing orexins project to brain structures that govern motivated behavior, including the ventral tegmental area (VTA). A number of psychiatric conditions, including attention deficit hyperactivity disorder (ADHD) and substance use disorders, are characterized by deficits in impulse control, however the relationship between orexin and impulsive behavior is incompletely characterized. The effects of systemic or centrally administered orexin receptor (OXR) antagonists on measures of impulsive-like behavior in rats were evaluated using the five-choice serial reaction time task (5-CSRTT) and delay discounting procedures...
July 25, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28691604/parent-psychopathology-and-neurocognitive-functioning-in-children-with-adhd
#19
Sharifah Shameem Agha, Stanley Zammit, Anita Thapar, Kate Langley
OBJECTIVE: The objective of this study was to examine the association between parent mental health (ADHD and depression) and offspring performance on neurocognitive tasks in children with ADHD. METHOD: The clinical sample consisted of 570 children (85% males, mean age: 10.77 years) with ADHD who completed neurocognitive tasks measuring working memory, attention set-shifting, and motivational deficits. Questionnaire measures were used to assess ADHD and depression symptom presence in parents...
July 1, 2017: Journal of Attention Disorders
https://www.readbyqxmd.com/read/28630479/attention-cognitive-control-and-motivation-in-adhd-linking-event-related-brain-potentials-and-dna-methylation-patterns-in-boys-at-early-school-age
#20
Hartmut Heinrich, Juliane Grunitz, Valeska Stonawski, Stefan Frey, Simone Wahl, Björn Albrecht, Tamme W Goecke, Matthias W Beckmann, Johannes Kornhuber, Peter A Fasching, Gunther H Moll, Anna Eichler
In order to better understand the underpinnings of attention-deficit/hyperactivity disorder (ADHD), we targeted the relationship of attentional, cognitive control and motivational processes with DNA methylation patterns of 60 candidate genes in boys at early school age. Participants (6 to 8 years; N = 82) were selected from a German longitudinal cohort (FRANCES). ADHD-related behaviour was assessed via maternal ratings. Performance and event-related potential measures (inter alia Cue-P3 and Nogo-P3), which were recorded in a motivational go/nogo task, indicated diminished attentional orienting, reduced inhibitory response control and a larger motivational effect on performance in ADHD already at this relatively young age...
June 19, 2017: Scientific Reports
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