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Visual short term memory

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https://www.readbyqxmd.com/read/28211489/sleep-supports-the-slow-abstraction-of-gist-from-visual-perceptual-memories
#1
Nicolas D Lutz, Susanne Diekelmann, Patricia Hinse-Stern, Jan Born, Karsten Rauss
Sleep benefits the consolidation of individual episodic memories. In the long run, however, it may be more efficient to retain the abstract gist of single, related memories, which can be generalized to similar instances in the future. While episodic memory is enhanced after one night of sleep, effective gist abstraction is thought to require multiple nights. We tested this hypothesis using a visual Deese-Roediger-McDermott paradigm, examining gist abstraction and episodic-like memory consolidation after 20 min, after 10 hours, as well as after one year of retention...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28188917/impaired-visual-short-term-memory-capacity-is-distinctively-associated-with-structural-connectivity-of-the-posterior-thalamic-radiation-and-the-splenium-of-the-corpus-callosum-in-preterm-born-adults
#2
A Menegaux, C Meng, J Neitzel, J G Bäuml, H J Müller, P Bartmann, D Wolke, A M Wohlschläger, K Finke, C Sorg
Preterm birth is associated with an increased risk for lasting changes in both the cortico-thalamic system and attention; however, the link between cortico-thalamic and attention changes is as yet little understood. In preterm newborns, cortico-cortical and cortico-thalamic structural connectivity are distinctively altered, with increased local clustering for cortico-cortical and decreased integrity for cortico-thalamic connectivity. In preterm-born adults, among the various attention functions, visual short-term memory (vSTM) capacity is selectively impaired...
February 7, 2017: NeuroImage
https://www.readbyqxmd.com/read/28186173/locating-temporal-functional-dynamics-of-visual-short-term-memory-binding-using-graph-modular-dirichlet-energy
#3
Keith Smith, Benjamin Ricaud, Nauman Shahid, Stephen Rhodes, John M Starr, Augustin Ibáñez, Mario A Parra, Javier Escudero, Pierre Vandergheynst
Visual short-term memory binding tasks are a promising early marker for Alzheimer's disease (AD). To uncover functional deficits of AD in these tasks it is meaningful to first study unimpaired brain function. Electroencephalogram recordings were obtained from encoding and maintenance periods of tasks performed by healthy young volunteers. We probe the task's transient physiological underpinnings by contrasting shape only (Shape) and shape-colour binding (Bind) conditions, displayed in the left and right sides of the screen, separately...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28160753/lateralization-of-language-function-in-epilepsy-patients-a-high-density-scalp-derived-event-related-potentials-erp-study
#4
Karin Trimmel, Jens Sachsenweger, Gerald Lindinger, Eduard Auff, Fritz Zimprich, Ekaterina Pataraia
OBJECTIVES: Language functional magnetic resonance imaging (fMRI) represents the clinical standard for language lateralization assessment in presurgical epilepsy evaluation, but still many patients experience postoperative language deficits. Event-related potentials (ERPs), especially the negative component around and after 400ms, are related to language processing and could therefore represent a complementary method of language lateralization assessment. METHODS: Scalp EEG was recorded from 64 locations in 36 epilepsy patients and 37 controls during three visually presented language tasks: A short-term language memory task (differentiation memorized vs...
January 12, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28140782/time-manages-interference-in-visual-short-term-memory
#5
Amy V Smith, Denis McKeown, David Bunce
Emerging evidence suggests that age-related declines in memory may reflect a failure in pattern separation, a process that is believed to reduce the encoding overlap between similar stimulus representations during memory encoding. Indeed, behavioural pattern separation may be indexed by a visual continuous recognition task in which items are presented in sequence and observers report for each whether it is novel, previously viewed (old), or whether it shares features with a previously viewed item (similar)...
January 31, 2017: Memory
https://www.readbyqxmd.com/read/28130648/short-and-long-term-effects-of-nicotine-and-the-histone-deacetylase-inhibitor-phenylbutyrate-on-novel-object-recognition-in-zebrafish
#6
M P Faillace, A Pisera-Fuster, M P Medrano, A C Bejarano, R O Bernabeu
RATIONALE: Zebrafish have a sophisticated color- and shape-sensitive visual system, so we examined color cue-based novel object recognition in zebrafish. We evaluated preference in the absence or presence of drugs that affect attention and memory retention in rodents: nicotine and the histone deacetylase inhibitor (HDACi) phenylbutyrate (PhB). OBJECTIVES: The objective of this study was to evaluate whether nicotine and PhB affect innate preferences of zebrafish for familiar and novel objects after short- and long-retention intervals...
January 27, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28120315/erratum-to-does-visual-short-term-memory-have-a-high-capacity-stage
#7
Michi Matsukura, Andrew Hollingworth
No abstract text is available yet for this article.
January 24, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28116644/the-involvement-of-central-attention-in-visual-search-is-determined-by-task-demands
#8
Suk Won Han
Attention, the mechanism by which a subset of sensory inputs is prioritized over others, operates at multiple processing stages. Specifically, attention enhances weak sensory signal at the perceptual stage, while it serves to select appropriate responses or consolidate sensory representations into short-term memory at the central stage. This study investigated the independence and interaction between perceptual and central attention. To do so, I used a dual-task paradigm, pairing a four-alternative choice task with a visual search task...
January 23, 2017: Attention, Perception & Psychophysics
https://www.readbyqxmd.com/read/28115973/dietary-supplementation-of-hericium-erinaceus-increases-mossy-fiber-ca3-hippocampal-neurotransmission-and-recognition-memory-in-wild-type-mice
#9
Federico Brandalise, Valentina Cesaroni, Andrej Gregori, Margherita Repetti, Chiara Romano, Germano Orrù, Laura Botta, Carolina Girometta, Maria Lidia Guglielminetti, Elena Savino, Paola Rossi
Hericium erinaceus (Bull.) Pers. is a medicinal mushroom capable of inducing a large number of modulatory effects on human physiology ranging from the strengthening of the immune system to the improvement of cognitive functions. In mice, dietary supplementation with H. erinaceus prevents the impairment of spatial short-term and visual recognition memory in an Alzheimer model. Intriguingly other neurobiological effects have recently been reported like the effect on neurite outgrowth and differentiation in PC12 cells...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28096869/short-term-psychiatric-rehabilitation-in-major-depressive-and-bipolar-disorders-neuropsychological-psychosocial-outcomes
#10
Giampaolo Perna, Silvia Daccò, Ferdinando Sacco, Wilma Micieli, Paolo Cavedini, Daniela Caldirola
OBJECTIVE: Our pilot study aims to investigate the efficacy of a Short-Term (4 weeks) Psychiatric Rehabilitation Program (S-T PsyRP), without specific cognitive remediation trainings, on the neuropsychological performance and psychosocial functioning of inpatients with Major Depressive Disorder (MDD) or Bipolar Disorder (BD). Published studies with similar aims are lacking. METHODS: Fifty-three inpatients with MDD and 27 with BD (type I/II) were included. The S-T PsyRP was usually performed as clinical practice at Villa San Benedetto Menni Hospital and included a variety of activities aimed at promoting personal autonomies, interpersonal/social skills, and self-care...
January 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28096845/cognitive-impairment-after-sudden-cardiac-arrest
#11
Magdalena Jaszke-Psonka, Magdalena Piegza, Piotr Ścisło, Robert Pudlo, Jacek Piegza, Karina Badura-Brzoza, Aleksandra Leksowska, Robert T Hese, Piotr W Gorczyca
AIM: To evaluate the incidence and severity of the impairment of selected cognitive functions in patients after sudden cardiac arrest (SCA) in comparison to patients after myocardial infarction without SCA and healthy subjects and to analyze the influence of sociodemographic and clinical parameters and the duration of cardiac arrest on the presence and severity of the described disorders. MATERIAL AND METHODS: The study group comprised 30 cardiac arrest survivors, the reference group comprised 31 survivors of myocardial infarction without cardiac arrest, and the control group comprised 30 healthy subjects...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28089585/the-impact-of-intelligence-on-memory-and-executive-functions-of-children-with-temporal-lobe-epilepsy-methodological-concerns-with-clinical-relevance
#12
Patricia Rzezak, Catarina A Guimarães, Marilisa M Guerreiro, Kette D Valente
PURPOSE: Patients with TLE are prone to have lower IQ scores than healthy controls. Nevertheless, the impact of IQ differences is not usually considered in studies that compared the cognitive functioning of children with and without epilepsy. This study aimed to determine the effect of using IQ as a covariate on memory and attentional/executive functions of children with TLE. METHODS: Thirty-eight children and adolescents with TLE and 28 healthy controls paired as to age, gender, and sociodemographic factors were evaluated with a comprehensive neuropsychological battery for memory and executive functions...
December 29, 2016: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28088063/verbal-and-musical-short-term-memory-variety-of-auditory-disorders-after-stroke
#13
Catherine Hirel, Norbert Nighoghossian, Yohana Lévêque, Salem Hannoun, Lesly Fornoni, Sébastien Daligault, Patrick Bouchet, Julien Jung, Barbara Tillmann, Anne Caclin
Auditory cognitive deficits after stroke may concern language and/or music processing, resulting in aphasia and/or amusia. The aim of the present study was to assess the potential deficits of auditory short-term memory for verbal and musical material after stroke and their underlying cerebral correlates with a Voxel-based Lesion Symptom Mapping approach (VLSM). Patients with an ischemic stroke in the right (N=10) or left (N=10) middle cerebral artery territory and matched control participants (N=14) were tested with a detailed neuropsychological assessment including global cognitive functions, music perception and language tasks...
January 11, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28080086/attentional-capture-by-taboo-words-a-functional-view-of-auditory-distraction
#14
Jan P Röer, Ulrike Körner, Axel Buchner, Raoul Bell
It is well established that task-irrelevant, to-be-ignored speech adversely affects serial short-term memory (STM) for visually presented items compared with a quiet control condition. However, there is an ongoing debate about whether the semantic content of the speech has the capacity to capture attention and to disrupt memory performance. In the present article, we tested whether taboo words are more difficult to ignore than neutral words. Taboo words or neutral words were presented as (a) steady state sequences in which the same distractor word was repeated, (b) changing state sequences in which different distractor words were presented, and (c) auditory deviant sequences in which a single distractor word deviated from a sequence of repeated words...
January 12, 2017: Emotion
https://www.readbyqxmd.com/read/28078977/emotion-cognition-interaction-in-nonhuman-primatescognitive-avoidance-of-negative-stimuli-in-baboons-papio-papio
#15
Isabelle Blanchette, Yousri Marzouki, Nicolas Claidière, Julie Gullstrand, Joël Fagot
It is well established that emotion and cognition interact in humans, but such an interaction has not been extensively studied in nonhuman primates. We investigated whether emotional value can affect nonhuman primates' processing of stimuli that are only mentally represented, not visually available. In a short-term memory task, baboons memorized the location of two target squares of the same color, which were presented with a distractor of a different color. Through prior long-term conditioning, one of the two colors had acquired a negative valence...
January 2017: Psychological Science
https://www.readbyqxmd.com/read/28078966/visual-and-cross-modal-cues-increase-the-identification-of-overlapping-visual-stimuli-in-balint-s-syndrome
#16
Daniela D'Imperio, Michele Scandola, Valeria Gobbetto, Cristina Bulgarelli, Matteo Salgarello, Renato Avesani, Valentina Moro
INTRODUCTION: Cross-modal interactions improve the processing of external stimuli, particularly when an isolated sensory modality is impaired. When information from different modalities is integrated, object recognition is facilitated probably as a result of bottom-up and top-down processes. The aim of this study was to investigate the potential effects of cross-modal stimulation in a case of simultanagnosia. METHOD: We report a detailed analysis of clinical symptoms and an (18)F-fluorodeoxyglucose (FDG) brain positron emission tomography/computed tomography (PET/CT) study of a patient affected by Balint's syndrome, a rare and invasive visual-spatial disorder following bilateral parieto-occipital lesions...
January 12, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28074268/cognitive-deficits-in-patients-with-a-chronic-vestibular-failure
#17
Pauline Popp, Melanie Wulff, Kathrin Finke, Maxine Rühl, Thomas Brandt, Marianne Dieterich
Behavioral studies in rodents and humans have demonstrated deficits of spatial memory and orientation in bilateral vestibular failure (BVF). Our aim was to explore the functional consequences of chronic vestibular failure on different cognitive domains including spatial as well as non-spatial cognitive abilities. Sixteen patients with a unilateral vestibular failure (UVF), 18 patients with a BVF, and 17 healthy controls (HC) participated in the study. To assess the cognitive domains of short-term memory, executive function, processing speed and visuospatial abilities the following tests were used: Theory of Visual Attention (TVA), TAP Alertness and Visual Scanning, the Stroop Color-Word, and the Corsi Block Tapping Test...
January 10, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28050774/task-set-induces-dynamic-reallocation-of-resources-in-visual-short-term-memory
#18
Summer L Sheremata, Sarah Shomstein
Successful interaction with the environment requires the ability to flexibly allocate resources to different locations in the visual field. Recent evidence suggests that visual short-term memory (VSTM) resources are distributed asymmetrically across the visual field based upon task demands. Here, we propose that context, rather than the stimulus itself, determines asymmetrical distribution of VSTM resources. To test whether context modulates the reallocation of resources to the right visual field, task set, defined by memory-load, was manipulated to influence visual short-term memory performance...
January 3, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28045787/some-neurocognitive-correlates-of-noise-vocoded-speech-perception-in-children-with-normal-hearing-a-replication-and-extension-of-eisenberg-et-al-2002
#19
Adrienne S Roman, David B Pisoni, William G Kronenberger, Kathleen F Faulkner
OBJECTIVES: Noise-vocoded speech is a valuable research tool for testing experimental hypotheses about the effects of spectral degradation on speech recognition in adults with normal hearing (NH). However, very little research has utilized noise-vocoded speech with children with NH. Earlier studies with children with NH focused primarily on the amount of spectral information needed for speech recognition without assessing the contribution of neurocognitive processes to speech perception and spoken word recognition...
December 27, 2016: Ear and Hearing
https://www.readbyqxmd.com/read/28034340/topographic-processing-in-developmental-prosopagnosia-preserved-perception-but-impaired-memory-of-scenes
#20
Solja K Klargaard, Randi Starrfelt, Anders Petersen, Christian Gerlach
Anecdotal evidence suggests a relation between impaired spatial (navigational) processing and developmental prosopagnosia. To address this formally, we tested two aspects of topographic processing - that is, perception and memory of mountain landscapes shown from different viewpoints. Participants included nine individuals with developmental prosopagnosia and 18 matched controls. The group with developmental prosopagnosia had no difficulty with topographic perception, but was reliably poorer in the retention of topographic information...
December 30, 2016: Cognitive Neuropsychology
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