keyword
MENU ▼
Read by QxMD icon Read
search

Match-to-sample

keyword
https://www.readbyqxmd.com/read/27903706/phase-amplitude-coupling-and-long-range-phase-synchronization-reveal-frontotemporal-interactions-during-visual-working-memory
#1
Jonathan Daume, Thomas Gruber, Andreas K Engel, Uwe Friese
: It has been suggested that cross-frequency phase-amplitude coupling (PAC) particularly in temporal brain structures serves as a neural mechanism for coordinated working memory storage. In this magnetoencephalography study, we show that during visual working memory maintenance, temporal cortex regions, which exhibit enhanced PAC, interact with prefrontal cortex via enhanced low-frequency phase synchronization. Healthy human participants were engaged in a visual delayed-matching-to-sample task with pictures of natural objects...
November 30, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27902685/getting-to-the-bottom-of-face-processing-species-specific-inversion-effects-for-faces-and-behinds-in-humans-and-chimpanzees-pan-troglodytes
#2
Mariska E Kret, Masaki Tomonaga
For social species such as primates, the recognition of conspecifics is crucial for their survival. As demonstrated by the 'face inversion effect', humans are experts in recognizing faces and unlike objects, recognize their identity by processing it configurally. The human face, with its distinct features such as eye-whites, eyebrows, red lips and cheeks signals emotions, intentions, health and sexual attraction and, as we will show here, shares important features with the primate behind. Chimpanzee females show a swelling and reddening of the anogenital region around the time of ovulation...
2016: PloS One
https://www.readbyqxmd.com/read/27896309/olfactory-stimulus-control-and-the-behavioral-pharmacology-of-remembering
#3
Mark Galizio
Behavior analytic approaches and techniques have much to offer to the study of remembering. There is currently great interest in the development of animal models of human memory processes in order to enhance understanding of the neurobiology of memory and treatment of dementia and related disorders. Because rodent models are so important in contemporary neuroscience and genetics, development of procedures to study various forms of memory in rodents is a point of emphasis. The sense of smell plays an important role in rodent behavior and use of olfactory stimuli has permitted demonstrations of complex forms of stimulus control that have also served as baselines for studying drug effects on remembering...
November 2016: Behav Anal (Wash D C)
https://www.readbyqxmd.com/read/27890777/psychological-wellbeing-in-survivors-of-cardiac-arrest-and-its-relationship-to-neurocognitive-function
#4
Siân E Davies, Megan Rhys, Sarah E Voss, Rosemary Greenwood, Matthew Thomas, Jonathan R Benger
OBJECTIVE: To characterise psychological wellbeing in survivors of out-of-hospital cardiac arrest (OHCA), and examine its relationship to cognitive function. PATIENTS: Forty-one highly functioning cardiac arrest survivors were drawn from the follow-up cohort of a randomised controlled trial of initial airway management in OHCA (ISRCTN:18528625). DESIGN: Psychological wellbeing was assessed with a self-report questionnaire (the Depression Anxiety and Stress Scale; DASS) and cognitive function was examined using the Delayed Matching to Samples (DMS) test from the Cambridge Neuropsychological Test Automated Battery (CANTAB)...
November 24, 2016: Resuscitation
https://www.readbyqxmd.com/read/27881787/sensory-and-working-memory-representations-of-small-and-large-numerosities-in-the-crow-endbrain
#5
Helen M Ditz, Andreas Nieder
: Neurons in the avian nidopallium caudolaterale (NCL), an endbrain structure that originated independently from the mammalian neocortex, process visual numerosities. To clarify the code for number in this anatomically distinct endbrain area in birds, neuronal responses to a broad range of numerosities were analyzed. We recorded single-neuron activity from the NCL of crows performing a delayed match-to-sample task with visual numerosities as discriminanda. The responses of >20% of randomly selected neurons were modulated significantly by numerosities ranging from one to 30 items...
November 23, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27864643/robust-representations-of-individual-faces-in-chimpanzees-pan-troglodytes-but-not-monkeys-macaca-mulatta
#6
Jessica Taubert, Kimberly B Weldon, Lisa A Parr
Being able to recognize the faces of our friends and family members no matter where we see them represents a substantial challenge for the visual system because the retinal image of a face can be degraded by both changes in the person (age, expression, pose, hairstyle, etc.) and changes in the viewing conditions (direction and degree of illumination). Yet most of us are able to recognize familiar people effortlessly. A popular theory for how face recognition is achieved has argued that the brain stabilizes facial appearance by building average representations that enhance diagnostic features that reliably vary between people while diluting features that vary between instances of the same person...
November 19, 2016: Animal Cognition
https://www.readbyqxmd.com/read/27858168/global-local-processing-of-hierarchical-visual-stimuli-in-a-conflict-choice-task-by-capuchin-monkeys-sapajus-spp
#7
Valentina Truppa, Paola Carducci, Diego Antonio De Simone, Angelo Bisazza, Carlo De Lillo
In the last two decades, comparative research has addressed the issue of how the global and local levels of structure of visual stimuli are processed by different species, using Navon-type hierarchical figures, i.e. smaller local elements that form larger global configurations. Determining whether or not the variety of procedures adopted to test different species with hierarchical figures are equivalent is of crucial importance to ensure comparability of results. Among non-human species, global/local processing has been extensively studied in tufted capuchin monkeys using matching-to-sample tasks with hierarchical patterns...
November 17, 2016: Animal Cognition
https://www.readbyqxmd.com/read/27836108/post-stroke-cognitive-impairment-a-cross-sectional-comparison-study-between-mild-cognitive-impairment-of-vascular-and-non-vascular-etiology
#8
K P Divya, Ramshekhar N Menon, Ravi Prasad Varma, P N Sylaja, Bejoy Thomas, C Kesavadas, J Sunitha, V S Lekha, S Deepak
PURPOSE: To elucidate the cognitive profiles of post-stroke vascular mild cognitive impairment (VaMCI) in comparison to MCI of non-vascular etiology and cognitively normal healthy controls at a tertiary-care hospital in southern India. RESULTS: Logistic regression analysis adjusted for age and sex comparing VaMCI [N=50] with controls [N=27] revealed significant impairment in visual, verbal learning-recall and executive function scores. As compared to the MCI group [N=36], VaMCI had significantly higher scores on Weschler's Memory Scale (WMS) verbal subset delayed recall scores (p=0...
October 24, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27815773/the-neural-correlates-of-priming-emotion-and-reward-systems-for-conflict-processing-in-alcoholics
#9
T Schulte, Y-C Jung, E V Sullivan, A Pfefferbaum, M Serventi, E M Müller-Oehring
Emotional dysregulation in alcoholism (ALC) may result from disturbed inhibitory mechanisms. We therefore tested emotion and alcohol cue reactivity and inhibitory processes using negative priming. To test the neural correlates of cue reactivity and negative priming, 26 ALC and 26 age-matched controls underwent functional MRI performing a Stroop color match-to-sample task. In cue reactivity trials, task-irrelevant emotion and alcohol-related pictures were interspersed between color samples and color words. In negative priming trials, pictures primed the semantic content of an alcohol or emotion Stroop word...
November 4, 2016: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/27807037/two-days-of-calorie-deprivation-induced-by-underfeeding-and-aerobic-exercise-degrades-mood-and-lowers-interstitial-glucose-but-does-not-impair-cognitive-function-in-young-adults
#10
Harris R Lieberman, Asma S Bukhari, John A Caldwell, Marques A Wilson, Caroline R Mahoney, Stefan M Pasiakos, James P McClung, Tracey J Smith
BACKGROUND: In studies assessing the effects of acute undernutrition on cognitive function, volunteers are sedentary and findings are equivocal, even though glucose concentrations fall substantially. However, military personnel and endurance athletes often are underfed when physical demands, and consequently energy expenditure, are substantial. OBJECTIVE: The objective of this study was to determine whether 2 d of near-total calorie deprivation combined with aerobic exercise degraded cognitive performance and mood...
November 2, 2016: Journal of Nutrition
https://www.readbyqxmd.com/read/27794442/electrophysiological-evidence-for-women-superiority-on-unfamiliar-face-processing
#11
Tianyi Sun, Lin Li, Yuanli Xu, Li Zheng, Weidong Zhang, Fanzhi Anita Zhou, Xiuyan Guo
Previous research has reported that women superiority on face recognition tasks, taking sex difference in accuracy rates as major evidence. By appropriately modifying experimental tasks and examining reaction time as behavioral measure, it was possible to explore which stage of face processing contributes to womens' superiority. We used a modified delayed matching-to-sample task to investigate the time course characteristics of face recognition by ERP, for both men and women. In each trial, participants matched successively presented faces to samples (target faces) by key pressing...
October 26, 2016: Neuroscience Research
https://www.readbyqxmd.com/read/27790082/interference-impacts-working-memory-in-mild-cognitive-impairment
#12
Sara Aurtenetxe, Javier García-Pacios, David Del Río, María E López, José A Pineda-Pardo, Alberto Marcos, Maria L Delgado Losada, José M López-Frutos, Fernando Maestú
Mild cognitive impairment (MCI) is considered a transitional stage between healthy aging and dementia, specifically Alzheimer's disease (AD). The most common cognitive impairment of MCI includes episodic memory loss and difficulties in working memory (WM). Interference can deplete WM, and an optimal WM performance requires an effective control of attentional resources between the memoranda and the incoming stimuli. Difficulties in handling interference lead to forgetting. However, the interplay between interference and WM in MCI is not well-understood and needs further investigation...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27768227/a-novel-fecal-stable-isotope-approach-to-determine-the-timing-of-age-related-feeding-transitions-in-wild-infant-chimpanzees
#13
Iulia Bădescu, M Anne Katzenberg, David P Watts, Daniel W Sellen
OBJECTIVES: Determining nutritional development in wild primates is difficult through observations because confirming dietary intake is challenging. Physiological measures are needed to determine the relative contributions of maternal milk and other foods at different ages, and time of weaning. We used fecal stable carbon and nitrogen isotopes (δ(13) C, δ(15) N) and fecal nitrogen concentrations (%N) from wild chimpanzees at Ngogo, Uganda, to derive physiological dietary indicators during the transition from total reliance on maternal milk to adult foods after weaning...
October 21, 2016: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/27768046/the-4-mountains-test-a-short-test-of-spatial-memory-with-high-sensitivity-for-the-diagnosis-of-pre-dementia-alzheimer-s-disease
#14
Dennis Chan, Laura Marie Gallaher, Kuven Moodley, Ludovico Minati, Neil Burgess, Tom Hartley
This protocol describes the administration of the 4 Mountains Test (4MT), a short test of spatial memory, in which memory for the topographical layout of four mountains within a computer-generated landscape is tested using a delayed match-to-sample paradigm. Allocentric spatial memory is assessed by altering the viewpoint, colors and textures between the initially presented and target images. Allocentric spatial memory is a key function of the hippocampus, one of the earliest brain regions to be affected in Alzheimer's disease (AD) and impairment of hippocampal function predates the onset of dementia...
October 13, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27766646/establishing-derived-categorical-responding-in-children-with-disabilities-using-the-peak-e-curriculum
#15
Mark R Dixon, Jordan Belisle, Caleb R Stanley, Ryan C Speelman, Kyle E Rowsey, Dena Kime, Jacob H Daar
The purpose of the study was to evaluate a procedure to generate derived categorical responding by three children with disabilities and to promote the emergence of untrained intraverbal categorical responses. In the study, three 4-member equivalence classes including three stimuli (A, B, and C) and a category name (D) for each class were trained using a match-to-sample procedure. Test probes were conducted for categorical responding, including both a trained (D-A) and two derived (D-B, D-C) relational responses, as well as the emergence of untrained intraverbal categorical responding (D-A/B/C) throughout the study...
October 20, 2016: Journal of Applied Behavior Analysis
https://www.readbyqxmd.com/read/27747877/behavioral-pharmacology-of-the-odor-span-task-effects-of-flunitrazepam-ketamine-methamphetamine-and-methylphenidate
#16
Mark Galizio, Brooke April, Melissa Deal, Andrew Hawkey, Danielle Panoz-Brown, Ashley Prichard, Katherine Bruce
The Odor Span Task is an incrementing non-matching-to-sample procedure that permits the study of behavior under the control of multiple stimuli. Rats are exposed to a series of odor stimuli and selection of new stimuli is reinforced. Successful performance thus requires remembering which stimuli have previously been presented during a given session. This procedure has been frequently used in neurobiological studies as a rodent model of working memory; however, only a few studies have examined the effects of drugs on performance in this task...
November 2016: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/27736018/cognition-in-aged-rhesus-monkeys-effect-of-dhea-and-correlation-with-steroidogenic-gene-expression
#17
K G Sorwell, L Renner, A R Weiss, M Neuringer, S G Kohama, H F Urbanski
Estradiol supplementation has been shown to enhance cognitive performance in old ovariectomized rhesus macaques (Macaca mulatta). To determine if similar benefits could be achieved in perimenopausal animals using alternative hormonal supplements, we administered dehydroepiandrosterone (DHEA) to old ovary-intact female rhesus macaques for ∼2.5 months. Using computerized touch screen memory tasks, including delayed response (DR) and delayed matching-to-sample (DMS), we observed improved performance with time in all of the animals but failed to detect a significant effect of DHEA...
October 13, 2016: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/27720742/neural-correlates-of-sample-coding-and-reward-coding-in-the-delay-activity-of-neurons-in-the-entopallium-and-nidopallium-caudolaterale-of-pigeons-columba-livia
#18
Melissa Johnston, Catrona Anderson, Michael Colombo
We recorded neuronal activity from the nidopallium caudolaterale, the avian equivalent of mammalian prefrontal cortex, and the entopallium, the avian equivalent of the mammalian visual cortex, in four birds trained on a differential outcomes delayed matching-to-sample procedure in which one sample stimulus was followed by reward and the other was not. Despite similar incidence of reward-specific and reward-unspecific delay cell types across the two areas, overall entopallium delay activity occurred following both rewarded and non-rewarded stimuli, whereas nidopallium caudolaterale delay activity tended to occur following the rewarded stimulus but not the non-rewarded stimulus...
October 5, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27718536/encoding-of-global-visual-motion-in-the-nidopallium-caudolaterale-of-behaving-crows
#19
Lysann Wagener, Andreas Nieder
Songbirds possess acute vision. How higher brain centers represent basic and parameterized visual stimuli to process sensory signals according to their behavioral importance has not been studied in a systematic way. We therefore examined how carrion crows (Corvus corone) and their nidopallial visual neurons process global visual motion information in dynamic random-dot displays during a delayed match-to-sample (DMS) task. The behavioral data show that moderately fast motion speeds (16 degrees of visual angle/second) result in superior direction discrimination performance...
October 8, 2016: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27712105/normative-data-for-evaluating-mild-traumatic-brain-injury-with-a-handheld-neurocognitive-assessment-tool
#20
Andrea S Vincent, Christopher M Bailey, Charles Cowan, Eugenia Cox-Fuenzalida, Jeff Dyche, Kim A Gorgens, Daniel C Krawcyzk, Leanne Young
The BrainScope Ahead 300 is designed for use by health care professionals to aid in the assessment of patients suspected of a mild traumatic brain injury. The purpose of the current study was to establish normative data for the cognitive test component of the Ahead 300 system and to evaluate the role of demographic factors on test performance. Healthy, community-dwelling adults between the ages of 18 and 80 recruited from five geographically distributed sites were administered Android versions of the ANAM Matching to Sample and Procedural Reaction Time tests that comprise the cognitive test component of the Ahead 300 system by trained personnel...
August 11, 2016: Applied Neuropsychology. Adult
keyword
keyword
112562
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"