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Adam gazzaley

Jennifer Abbasi
No abstract text is available yet for this article.
June 13, 2018: JAMA: the Journal of the American Medical Association
David A Ziegler, Jacqueline R Janowich, Adam Gazzaley
Attention can be oriented externally to the environment or internally to the mind, and can be derailed by interference from irrelevant information originating from either external or internal sources. However, few studies have explored the nature and underlying mechanisms of the interaction between different attentional orientations and different sources of interference. We investigated how externally- and internally-directed attention was impacted by external distraction, how this modulated internal distraction, and whether these interactions were affected by healthy aging...
February 6, 2018: Scientific Reports
Anne Brandes-Aitken, Joaquin A Anguera, Camarin E Rolle, Shivani S Desai, Carly Demopoulos, Sasha N Skinner, Adam Gazzaley, Elysa J Marco
OBJECTIVE: Children with autism spectrum disorders (ASD) and sensory processing dysfunction (SPD) are reported to show difficulties involving cognitive and visuomotor control. We sought to determine whether performance on computerized, behavioral measures of cognitive control aimed at assessing selective attention, as well as visuomotor abilities differentiated children with ASD (n = 14), SPD (n = 14) and typically developing controls (TDC; n = 28). METHOD: Cognitive control differences were measured by assessing selective attention-based abilities both with and without distracting stimuli, and visuomotor differences were measured by characterizing visuomotor tracking and tracing skills...
February 2018: Neuropsychology
Valeria Manera, Grégory Ben-Sadoun, Teun Aalbers, Hovannes Agopyan, Florence Askenazy, Michel Benoit, David Bensamoun, Jérémy Bourgeois, Jonathan Bredin, Francois Bremond, Carlos Crispim-Junior, Renaud David, Bob De Schutter, Eric Ettore, Jennifer Fairchild, Pierre Foulon, Adam Gazzaley, Auriane Gros, Stéphanie Hun, Frank Knoefel, Marcel Olde Rikkert, Minh K Phan Tran, Antonios Politis, Anne S Rigaud, Guillaume Sacco, Sylvie Serret, Susanne Thümmler, Marie L Welter, Philippe Robert
The use of Serious Games (SG) in the health domain is expanding. In the field of neurodegenerative disorders (ND) such as Alzheimer's disease, SG are currently employed both to support and improve the assessment of different functional and cognitive abilities, and to provide alternative solutions for patients' treatment, stimulation, and rehabilitation. As the field is quite young, recommendations on the use of SG in people with ND are still rare. In 2014 we proposed some initial recommendations (Robert et al...
2017: Frontiers in Psychology
Donish Cushing, Adam Gazzaley, Ezequiel Morsella
Percepts and action-related urges often enter consciousness insuppressibly. The Reflexive Imagery Task (RIT) was developed to investigate how high-level cognitions (e.g., subvocalizations), too, can enter consciousness in this manner. Limitations of the paradigm include (a) that no data have confirmed subjects' introspections about the involuntary subvocalizations, and (b) that, in everyday life, adaptive responses to involuntary cognitions often depend on the nature of the other contents in consciousness. To address a and b, we developed an RIT in which subjects were presented with visual objects and instructed to not think of the object names...
October 2017: Consciousness and Cognition
Camarin E Rolle, Joaquin A Anguera, Sasha N Skinner, Bradley Voytek, Adam Gazzaley
Daily experiences demand both focused and broad allocation of attention for us to interact efficiently with our complex environments. Many types of attention have shown age-related decline, although there is also evidence that such deficits may be remediated with cognitive training. However, spatial attention abilities have shown inconsistent age-related differences, and the extent of potential enhancement of these abilities remains unknown. Here, we assessed spatial attention in both healthy younger and older adults and trained this ability in both age groups for 5 hr over the course of 2 weeks using a custom-made, computerized mobile training application...
September 2017: Journal of Cognitive Neuroscience
Wan-Yu Hsu, Theodore P Zanto, Martine R van Schouwenburg, Adam Gazzaley
Multitasking is associated with the generation of stimulus-locked theta (4-7 Hz) oscillations arising from prefrontal cortex (PFC). Transcranial alternating current stimulation (tACS) is a non-invasive brain stimulation technique that influences endogenous brain oscillations. Here, we investigate whether applying alternating current stimulation within the theta frequency band would affect multitasking performance, and explore tACS effects on neurophysiological measures. Brief runs of bilateral PFC theta-tACS were applied while participants were engaged in a multitasking paradigm accompanied by electroencephalography (EEG) data collection...
2017: PloS One
Bradley Voytek, Jason Samaha, Camarin E Rolle, Zachery Greenberg, Navdeep Gill, Shai Porat, Tahim Kader, Sabahat Rahman, Rick Malzyner, Adam Gazzaley
Our attentional focus is constantly shifting: In one moment, our attention may be intently concentrated on a specific spot, whereas in another moment we might spread our attention more broadly. Although much is known about the mechanisms by which we shift our visual attention from place to place, relatively little is known about how we shift the aperture of attention from more narrowly to more broadly focused. Here we introduce a novel attentional distribution task to examine the neural mechanisms underlying this process...
July 2017: Journal of Cognitive Neuroscience
Peter E Wais, Sahar Jahanikia, Daniel Steiner, Craig E L Stark, Adam Gazzaley
Medial temporal lobe (MTL) function is well established as necessary for memory of facts and events. It is likely that lateral cortical regions critically guide cognitive control processes to tune in high-fidelity details that are most relevant for memory retrieval. Here, convergent results from functional and structural MRI show that retrieval of detailed episodic memory arises from lateral cortical-MTL networks, including regions of inferior frontal and angular gyrii. Results also suggest that recognition of items based on low-fidelity, generalized information, rather than memory arising from retrieval of relevant episodic details, is not associated with functional connectivity between MTL and lateral cortical regions...
April 1, 2017: NeuroImage
Patricia A Arean, Kevin A Hallgren, Joshua T Jordan, Adam Gazzaley, David C Atkins, Patrick J Heagerty, Joaquin A Anguera
BACKGROUND: Mobile apps for mental health have the potential to overcome access barriers to mental health care, but there is little information on whether patients use the interventions as intended and the impact they have on mental health outcomes. OBJECTIVE: The objective of our study was to document and compare use patterns and clinical outcomes across the United States between 3 different self-guided mobile apps for depression. METHODS: Participants were recruited through Web-based advertisements and social media and were randomly assigned to 1 of 3 mood apps...
December 20, 2016: Journal of Medical Internet Research
Namita A Padgaonkar, Theodore P Zanto, Jacob Bollinger, Adam Gazzaley
Older adults, compared to younger adults, do not benefit from predictive information regarding either what type of stimuli they will see or when to expect them, yet it is unclear whether older adults benefit when given both types of predictive information. Here, electroencephalogram recordings of older (aged 62-87 years) and younger (aged 20-32 years) adults were recorded during a working memory task. Each trial contained 2 faces and 2 scenes presented sequentially, followed by a 5-second delay and a probe stimulus...
January 2017: Neurobiology of Aging
Daniel T Gray, Anne C Smith, Sara N Burke, Adam Gazzaley, Carol A Barnes
One hallmark of the normal cognitive aging process involves alterations in executive function. Executive function can be divided into at least three separable components, including set shifting, attentional updating and monitoring, and inhibition of prepotent responses. The ability to study the neural basis of cognitive aging has been enriched by the use of animal models such as the macaque monkey. In aged macaques, changes in attentional updating and monitoring systems are poorly understood compared to changes in shifting and inhibition...
March 30, 2017: Behavioural Brain Research
Christian Thompson, Caleb Khan, Leticia Whitton-Martinez, Josh Volpini, Juliana Souza, Alexander Simon, Sasha Skinner, Daniel Kingsbook, Alan Leggitt, Joaquin Anguera, Adam Gazzaley
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Jyoti Mishra, Joaquin A Anguera, Adam Gazzaley
Sophisticated video games that integrate engaging cognitive training with real-time biosensing and neurostimulation have the potential to optimize cognitive performance in health and disease. We argue that technology development must be paired with rigorous scientific validation and discuss academic and industry opportunities in this field.
April 20, 2016: Neuron
Hyein Cho, Pareezad Zarolia, Adam Gazzaley, Ezequiel Morsella
In ironic processing, one is more likely to think about something (e.g., white bears) when instructed to not think about that thing. Entry into consciousness of such content may be automatic, reflecting the 'encapsulated' nature of the generation of conscious contents. Based on this research, the Reflexive Imagery Task (RIT) reveals that, following the activation of action sets, conscious contents can arise involuntarily and systematically in response to external stimuli. In the most basic version of this paradigm, participants are presented with visual objects and instructed to not think of the names of the objects, which is challenging...
May 2016: Acta Psychologica
Joaquin A Anguera, Joshua T Jordan, Diego Castaneda, Adam Gazzaley, Patricia A Areán
IMPORTANCE: Advances in mobile technology have resulted in federal and industry-level initiatives to facilitate large-scale clinical research using smart devices. Although the benefits of technology to expand data collection are obvious, assumptions about the reach of mobile research methods (access), participant willingness to engage in mobile research protocols (engagement), and the cost of this research (cost) remain untested. OBJECTIVE: To assess the feasibility of a fully mobile randomised controlled trial using assessments and treatments delivered entirely through mobile devices to depressed individuals...
January 2016: BMJ Innovations
Jacki Janowich, Jyoti Mishra, Adam Gazzaley
Goal-directed behavior is often impaired by interference from the external environment, either in the form of distraction by irrelevant information that one attempts to ignore, or by interrupting information that demands attention as part of another (secondary) task goal. Both forms of external interference have been shown to detrimentally impact the ability to maintain information in working memory (WM). Emerging evidence suggests that these different types of external interference exert different effects on behavior and may be mediated by distinct neural mechanisms...
July 16, 2015: Journal of Visualized Experiments: JoVE
Camarin E Rolle, Bradley Voytek, Adam Gazzaley
Many studies have validated consumer-facing hardware platforms as efficient, cost-effective, and accessible data collection instruments. However, there are few reports that have assessed the reliability of these platforms as assessment tools compared with traditional data collection platforms. Here we evaluated performance on a spatial attention paradigm obtained by our standard in-lab data collection platform, the personal computer (PC), and compared performance with that of two widely adopted, consumer technology devices: the Apple (Cupertino, CA) iPad(®) 2 and Microsoft (Redmond, WA) Xbox(®) Kinect(®)...
June 2015: Games for Health
Omar Al-Hashimi, Theodore P Zanto, Adam Gazzaley
Multitasking performance costs have largely been characterized by experiments that involve two overlapping and punctuated perceptual stimuli, as well as punctuated responses to each task. Here, participants engaged in a continuous performance paradigm during fMRI recording to identify neural signatures associated with multitasking costs under more natural conditions. Our results demonstrated that only a single brain region, the superior parietal lobule (SPL), exhibited a significant relationship with multitasking performance, such that increased activation in the multitasking condition versus the singletasking condition was associated with higher task performance (i...
October 2015: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
Ezequiel Morsella, Christine A Godwin, Tiffany K Jantz, Stephen C Krieger, Adam Gazzaley
What is the primary function of consciousness in the nervous system? The answer to this question remains enigmatic, not so much because of a lack of relevant data, but because of the lack of a conceptual framework with which to interpret the data. To this end, we have developed Passive Frame Theory, an internally coherent framework that, from an action-based perspective, synthesizes empirically supported hypotheses from diverse fields of investigation. The theory proposes that the primary function of consciousness is well-circumscribed, serving the somatic nervous system...
January 2016: Behavioral and Brain Sciences
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