keyword
MENU ▼
Read by QxMD icon Read
search

Cognitive errors

keyword
https://www.readbyqxmd.com/read/29782969/electroencephalographic-and-cardiovascular-markers-of-vulnerability-within-families-of-suicidal-adolescents-a-pilot-study
#1
Erin A Kaufman, Sheila E Crowell, James Coleman, Megan E Puzia, Douglas D Gray, David L Strayer
Suicide, self-injury, and predisposing vulnerabilities aggregate in families. Those at greatest risk often show deficits in two biologically-mediated domains: behavioral control and emotion regulation. This pilot study explored electroencephalographic and cardiovascular indices of self-regulation among typical and suicidal adolescents (n = 30/group) and biological family members (mothers, fathers, and siblings). We measured event-related potentials during a flanker task designed to evoke impulsive responding and respiratory sinus arrhythmia (RSA) at rest and during social rejection...
May 18, 2018: Biological Psychology
https://www.readbyqxmd.com/read/29782510/individual-differences-in-learning-correlate-with-modulation-of-brain-activity-induced-by-transcranial-direct-current-stimulation
#2
Brian Falcone, Atsushi Wada, Raja Parasuraman, Daniel E Callan
Transcranial direct current stimulation (tDCS) has been shown to enhance cognitive performance on a variety of tasks. It is hypothesized that tDCS enhances performance by affecting task related cortical excitability changes in networks underlying or connected to the site of stimulation facilitating long term potentiation. However, many recent studies have called into question the reliability and efficacy of tDCS to induce modulatory changes in brain activity. In this study, our goal is to investigate the individual differences in tDCS induced modulatory effects on brain activity related to the degree of enhancement in performance, providing insight into this lack of reliability...
2018: PloS One
https://www.readbyqxmd.com/read/29782328/post-stroke-visual-neglect-affects-goal-directed-locomotion-in-different-perceptuo-cognitive-conditions-and-on-a-wide-visual-spectrum
#3
Tatiana Ogourtsova, Philippe S Archambault, Anouk Lamontagne
BACKGROUND: Unilateral spatial neglect (USN), a highly prevalent and disabling post-stroke deficit, has been shown to affect the recovery of locomotion. However, our current understanding of USN role in goal-directed locomotion control, and this, in different cognitive/perceptual conditions tapping into daily life demands, is limited. OBJECTIVES: To examine goal-directed locomotion abilities in individuals with and without post-stroke USN vs. healthy controls. METHODS: Participants (n = 45, n = 15 per group) performed goal-directed locomotion trials to actual, remembered and shifting targets located 7 m away at 0° and 15° right/left while immersed in a 3-D virtual environment...
2018: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29781890/complexities-of-the-diagnostic-process
#4
Barbara Schildkrout
The diagnostic process is a highly complex, problem-solving enterprise. Yet, traditional case reports have not focused directly on this endeavor. Physicians could use the case format to present actual experiences of getting to a diagnosis. This approach would allow for modeling of nonjudgmental, self-reflective practices and also provide information to aid in studying the diagnostic endeavor. Given that diagnostic errors in medicine are widespread and constitute a serious public health problem, it is crucial for physicians to understand the diagnostic process as one step toward improving error rates...
May 17, 2018: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/29781210/individual-differences-in-decisiveness-erp-correlates-of-response-inhibition-and-error-monitoring
#5
Magdalena Senderecka, Jakub Szewczyk, Szymon Wichary, Małgorzata Kossowska
The aim of the current study was to examine whether and how self-reported decisiveness is associated with response inhibition and performance monitoring. We hypothesized that these two cognitive control mechanisms, both of which are often associated with decision making, would differ in individuals varying in decisiveness. We focused on ERP correlates and behavioral measures of inhibition and error processing in the stop-signal task. We expected a negative relationship between decisiveness and behavioral measures of inhibitory control...
May 20, 2018: Psychophysiology
https://www.readbyqxmd.com/read/29780314/effects-of-age-and-working-memory-load-on-syntactic-processing-an-event-related-potential-study
#6
Graciela C Alatorre-Cruz, Juan Silva-Pereyra, Thalía Fernández, Mario A Rodríguez-Camacho, Susana A Castro-Chavira, Javier Sanchez-Lopez
Cognitive changes in aging include working memory (WM) decline, which may hamper language comprehension. An increase in WM demands in older adults would probably provoke a poorer sentence processing performance in this age group. A way to increase the WM load is to separate two lexical units in an agreement relation (i.e., adjective and noun), in a given sentence. To test this hypothesis, event-related potentials (ERPs) were collected from Spanish speakers (30 older adults, mean age = 66.06 years old; and 30 young adults, mean age = 25...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29779050/proprioceptive-loss-and-the-perception-control-and-learning-of-arm-movements-in-humans-evidence-from-sensory-neuronopathy
#7
R Chris Miall, Nick M Kitchen, Se-Ho Nam, Hannah Lefumat, Alix G Renault, Kristin Ørstavik, Jonathan D Cole, Fabrice R Sarlegna
It is uncertain how vision and proprioception contribute to adaptation of voluntary arm movements. In normal participants, adaptation to imposed forces is possible with or without vision, suggesting that proprioception is sufficient; in participants with proprioceptive loss (PL), adaptation is possible with visual feedback, suggesting that proprioception is unnecessary. In experiment 1 adaptation to, and retention of, perturbing forces were evaluated in three chronically deafferented participants. They made rapid reaching movements to move a cursor toward a visual target, and a planar robot arm applied orthogonal velocity-dependent forces...
May 19, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29778803/age-affects-reinforcement-learning-through-dopamine-based-learning-imbalance-and-high-decision-noise-not-through-parkinsonian-mechanisms
#8
Ravi B Sojitra, Itamar Lerner, Jessica R Petok, Mark A Gluck
Probabilistic reinforcement learning declines in healthy cognitive aging. While some findings suggest impairments are especially conspicuous in learning from rewards, resembling deficits in Parkinson's disease, others also show impairments in learning from punishments. To reconcile these findings, we tested 252 adults from 3 age groups on a probabilistic reinforcement learning task, analyzed trial-by-trial performance with a Q-reinforcement learning model, and correlated both fitted model parameters and behavior to polymorphisms in dopamine-related genes...
April 19, 2018: Neurobiology of Aging
https://www.readbyqxmd.com/read/29773948/the-impact-of-total-sleep-deprivation-upon-cognitive-functioning-in-firefighters
#9
Sławomir Kujawski, Joanna Słomko, Małgorzata Tafil-Klawe, Monika Zawadka-Kunikowska, Justyna Szrajda, Julia L Newton, Paweł Zalewski, Jacek J Klawe
Introduction: Firefighters as a profession are required to maintain high levels of attention for prolonged periods. However, total sleep deprivation (TSD) could influence negatively upon performance, particularly when the task is prolonged and repetitive. Purpose: The aim of this study is to examine the influence of TSD on cognitive functioning in a group of firefighters. Subjects and methods: Sixty volunteers who were active male fire brigade officers were examined with a computerized battery test that consisted of simple reaction time (SRT) (repeated three times), choice reaction time, visual attention test, and delayed matching to sample...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29771729/self-regulation-and-executive-functioning-as-related-to-survival-in-motor-neuron-disease-preliminary-findings
#10
Natasha E Garcia-Willingham, Abbey R Roach, Edward J Kasarskis, Suzanne C Segerstrom
OBJECTIVE: Disease progression varies widely among patients with motor neuron disease (MND). Patients with MND and coexisting dementia have shorter survival. However, implications of mild cognitive and behavioral difficulties are unclear. The present study examined the relative contribution of executive functioning and self-regulation difficulties on survival over a 6-year period among patients with MND, who scored largely within normal limits on cognitive and behavioral indices. METHODS: Patients with MND (N=37, age=59...
May 16, 2018: Psychosomatic Medicine
https://www.readbyqxmd.com/read/29767814/inborn-errors-of-coenzyme-a-metabolism-and-neurodegeneration
#11
Ivano Di Meo, Miryam Carecchio, Valeria Tiranti
Two inborn errors of coenzyme A (CoA) metabolism are responsible for distinct forms of neurodegeneration with brain iron accumulation (NBIA), a heterogeneous group of neurodegenerative diseases having as a common denominator iron accumulation mainly in the inner portion of globus pallidus. Pantothenate kinase-associated neurodegeneration (PKAN), an autosomal recessive disorder with progressive impairment of movement, vision and cognition, is the most common form of NBIA and is caused by mutations in the pantothenate kinase 2 gene (PANK2), coding for a mitochondrial enzyme, which phosphorylates vitamin B5 in the first reaction of the CoA biosynthetic pathway...
May 16, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29765102/the-effects-of-cannabidiol-on-impulsivity-and-memory-during-abstinence-in-cigarette-dependent-smokers
#12
C Hindocha, T P Freeman, M Grabski, H Crudgington, A C Davies, J B Stroud, R K Das, W Lawn, C J A Morgan, H V Curran
Acute nicotine abstinence in cigarette smokers results in deficits in performance on specific cognitive processes, including working memory and impulsivity which are important in relapse. Cannabidiol (CBD), the non-intoxicating cannabinoid found in cannabis, has shown pro-cognitive effects and preliminary evidence has indicated it can reduce the number of cigarettes smoked in dependent smokers. However, the effects of CBD on cognition have never been tested during acute nicotine withdrawal. The present study therefore aimed to investigate if CBD can improve memory and reduce impulsivity during acute tobacco abstinence...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29764760/altered-predictive-capability-of-the-brain-network-eeg-model-in-schizophrenia-during-cognition
#13
Javier Gomez-Pilar, Jesús Poza, Carlos Gómez, Georg Northoff, Alba Lubeiro, Benjamín B Cea-Cañas, Vicente Molina, Roberto Hornero
The study of the mechanisms involved in cognition is of paramount importance for the understanding of the neurobiological substrates in psychiatric disorders. Hence, this research is aimed at exploring the brain network dynamics during a cognitive task. Specifically, we analyze the predictive capability of the pre-stimulus theta activity to ascertain the functional brain dynamics during cognition in both healthy and schizophrenia subjects. Firstly, EEG recordings were acquired during a three-tone oddball task from fifty-one healthy subjects and thirty-five schizophrenia patients...
May 12, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29756458/evaluation-of-the-effects-of-adding-vibrotactile-feedback-to-myoelectric-prosthesis-users-on-performance-and-visual-attention-in-a-dual-task-paradigm
#14
Eitan Raveh, Jason Friedman, Sigal Portnoy
OBJECTIVE: To evaluate the effects of adding vibrotactile feedback to myoelectric prosthesis users on the performance time and visual attention in a dual-task paradigm. DESIGN: A repeated-measures design with a counterbalanced order of two conditions. SETTING: Laboratory setting. SUBJECTS: Transradial amputees using a myoelectric prosthesis with normal or corrected eyesight ( N = 12, median age = 65 ± 13 years)...
May 1, 2018: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29755721/effects-of-congruent-and-incongruent-stimulus-colour-on-flavour-discriminations
#15
Leonie Wieneke, Pauline Schmuck, Julia Zacher, Mark W Greenlee, Tina Plank
In addition to gustatory, olfactory and somatosensory input, visual information plays a role in our experience of food and drink. We asked whether colour in this context has an effect at the perceptual level via multisensory integration or if higher level cognitive factors are involved. Using an articulatory suppression task, comparable to Stevenson and Oaten, cognitive processes should be interrupted during a flavour discriminatory task, so that any residual colour effects would be traceable to low-level integration...
March 2018: I-Perception
https://www.readbyqxmd.com/read/29753480/characterizing-social-behavior-activity-and-associations-between-cognition-and-behavior-upon-social-grouping-of-weaned-dairy-calves
#16
K C Horvath, E K Miller-Cushon
Weaned dairy calves are commonly exposed to changing physical and social environments, and ability to adapt to novel management is likely to have performance and welfare implications. We characterized how behavioral responses of weaned heifer calves develop over time after introduction to a social group. Previously individually reared Holstein heifer calves (n = 15; 60 ± 5 d of age; mean ± standard deviation) were introduced in weekly cohorts (5 ± 3 new calves/wk) to an existing group on pasture (8 ± 2 calves/group)...
May 9, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29752765/adaptive-template-generation-for-amyloid-pet-using-a-deep-learning-approach
#17
Seung Kwan Kang, Seongho Seo, Seong A Shin, Min Soo Byun, Dong Young Lee, Yu Kyeong Kim, Dong Soo Lee, Jae Sung Lee
Accurate spatial normalization (SN) of amyloid positron emission tomography (PET) images for Alzheimer's disease assessment without coregistered anatomical magnetic resonance imaging (MRI) of the same individual is technically challenging. In this study, we applied deep neural networks to generate individually adaptive PET templates for robust and accurate SN of amyloid PET without using matched 3D MR images. Using 681 pairs of simultaneously acquired 11 C-PIB PET and T1-weighted 3D MRI scans of AD, MCI, and cognitively normal subjects, we trained and tested two deep neural networks [convolutional auto-encoder (CAE) and generative adversarial network (GAN)] that produce adaptive best PET templates...
May 11, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29750987/the-opportunity-cost-of-time-modulates-cognitive-effort
#18
A Ross Otto, Nathaniel D Daw
A spate of recent work demonstrates that humans seek to avoid the expenditure of cognitive effort, much like physical effort or economic resources. Less is clear, however, about the circumstances dictating how and when people decide to expend cognitive effort. Here we adopt a popular theory of opportunity costs and response vigor and to elucidate this question. This account, grounded in Reinforcement Learning, formalizes a trade-off between two costs: the harder work assumed necessary to emit faster actions and the opportunity cost inherent in acting more slowly (i...
May 8, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29750195/utilizing-sensory-prediction-errors-for-movement-intention-decoding-a-new-methodology
#19
Gowrishankar Ganesh, Keigo Nakamura, Supat Saetia, Alejandra Mejia Tobar, Eiichi Yoshida, Hideyuki Ando, Natsue Yoshimura, Yasuharu Koike
We propose a new methodology for decoding movement intentions of humans. This methodology is motivated by the well-documented ability of the brain to predict sensory outcomes of self-generated and imagined actions using so-called forward models. We propose to subliminally stimulate the sensory modality corresponding to a user's intended movement, and decode a user's movement intention from his electroencephalography (EEG), by decoding for prediction errors-whether the sensory prediction corresponding to a user's intended movement matches the subliminal sensory stimulation we induce...
May 2018: Science Advances
https://www.readbyqxmd.com/read/29748284/efficient-coding-explains-the-universal-law-of-generalization-in-human-perception
#20
Chris R Sims
Perceptual generalization and discrimination are fundamental cognitive abilities. For example, if a bird eats a poisonous butterfly, it will learn to avoid preying on that species again by generalizing its past experience to new perceptual stimuli. In cognitive science, the "universal law of generalization" seeks to explain this ability and states that generalization between stimuli will follow an exponential function of their distance in "psychological space." Here, I challenge existing theoretical explanations for the universal law and offer an alternative account based on the principle of efficient coding...
May 11, 2018: Science
keyword
keyword
26728
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"