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https://www.readbyqxmd.com/read/29229939/synaesthesia-type-associations-and-perceptual-changes-induced-by-hypnotic-suggestion
#1
Sakari Kallio, Mika Koivisto, Johanna K Kaakinen
Are synaesthetic experiences congenital and so hard-wired, or can a functional analogue be created? We induced an equivalent of form-colour synaesthesia using hypnotic suggestions in which symbols in an array (circles, crosses, squares) were suggested always to have a certain colour. In a Stroop type-naming task, three of the four highly hypnotizable participants showed a strong synaesthesia-type association between symbol and colour. This was verified both by their subjective reports and objective eye-movement behaviour...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229706/causal-evidence-for-learning-dependent-frontal-lobe-contributions-to-cognitive-control
#2
Paul S Muhle-Karbe, Jiefeng Jiang, Tobias Egner
The lateral prefrontal cortex (LPFC) plays a central role in the prioritization of sensory input based on task-relevance. Such top-down control of perception is of fundamental importance in goal-directed behavior, but can also be costly when deployed excessively, necessitating a mechanism that regulates control engagement to align it with changing environmental demands. We have recently introduced the "flexible control model," which explains this regulation as resulting from a self-adjusting reinforcement-learning mechanism that infers latent statistical structure in dynamic task environments to predict forthcoming states...
December 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29225094/the-sweet-effect-comparative-assessments-of-dietary-sugars-on-cognitive-performance
#3
Rachel Ginieis, Elizabeth A Franz, Indrawati Oey, Mei Peng
In recent years there has been increasing interest in studying cognitive effects associated with sugar consumption. Neuro-cognitive research has confirmed that glucose, as a main energy substrate for the brain, can momentarily benefit cognitive performances, particularly for memory functioning. However, there is still limited understanding of relative effects of other common sugars (e.g., fructose and sucrose) on cognitive performance. The present study tested in 49 people the effects of three common dietary sugars against a placebo sweetener (i...
December 7, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29222609/evaluating-cognition-in-individuals-with-huntington-disease-neuro-qol-cognitive-functioning-measures
#4
Jin-Shei Lai, Siera Goodnight, Nancy R Downing, Rebecca E Ready, Jane S Paulsen, Anna L Kratz, Julie C Stout, Michael K McCormack, David Cella, Christopher Ross, Jenna Russell, Noelle E Carlozzi
PURPOSE: Cognitive functioning impacts health-related quality of life (HRQOL) for individuals with Huntington disease (HD). The Neuro-QoL includes two patient-reported outcome (PRO) measures of cognition-Executive Function (EF) and General Concerns (GC). These measures have not previously been validated for use in HD. The purpose of this analysis is to evaluate the reliability and validity of the Neuro-QoL Cognitive Function measures for use in HD. METHODS: Five hundred ten individuals with prodromal or manifest HD completed the Neuro-QoL Cognition measures, two other PRO measures of HRQOL (WHODAS 2...
December 8, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/29221834/emotion-and-sex-of-facial-stimuli-modulate-conditional-automaticity-in-behavioral-and-neuronal-interference-in-healthy-men
#5
Nils Kohn, Guillén Fernández
Our surrounding provides a host of sensory input, which we cannot fully process without streamlining and automatic processing. Levels of automaticity differ for different cognitive and affective processes. Situational and contextual interactions between cognitive and affective processes in turn influence the level of automaticity. Automaticity can be measured by interference in Stroop tasks. We applied an emotional version of the Stroop task to investigate how stress as a contextual factor influences the affective valence-dependent level of automaticity...
December 5, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29215144/physiological-coherence-in-healthy-volunteers-during-laboratory-induced-stress-and-controlled-breathing
#6
Elisa Mejía-Mejía, Robinson Torres, Diana Restrepo
Physiological coherence has been related with a general sense of well-being and improvements in health and physical, social, and cognitive performance. The aim of this study was to evaluate the relationship between acute stress, controlled breathing, and physiological coherence, and the degree of body systems synchronization during a coherence-generation exercise. Thirty-four university employees were evaluated during a 20-min test consisting of four stages of 5-min duration each, during which basal measurements were obtained (Stage 1), acute stress was induced using validated mental stressors (Stroop test and mental arithmetic task, during Stage 2 and 3, respectively), and coherence states were generated using a controlled breathing technique (Stage 4)...
December 7, 2017: Psychophysiology
https://www.readbyqxmd.com/read/29214553/mora-or-more-the-phonological-unit-of-japanese-word-production-in-the-stroop-color-naming-task
#7
Rinus G Verdonschot, Sachiko Kinoshita
In English, Dutch, and other European languages, it is well established that the fundamental phonological unit in word production is the phoneme; in contrast, recent studies have shown that in Chinese it is the (atonal) syllable and in Japanese the mora. The present study investigated whether this cross-language variation in the size of the unit of word production is due to the type of script used in the language (i.e., alphabetic, morphosyllabic, or moraic). Capitalizing on the multiscriptal nature of Japanese, and using the Stroop color naming task, we show that the overlap in the initial mora between the color name and the written distractor facilitates color naming independent of script type...
December 6, 2017: Memory & Cognition
https://www.readbyqxmd.com/read/29213506/symptoms-of-depression-in-patients-with-mild-cognitive-impairment-in-parkinson-s-disease
#8
Ana Lara Soares Blum Malak, Luiz Felipe Vasconcellos, João Santos Pereira, Denise Vieira Greca, Manuela Cruz, Heloisa Veiga Dias Alves, Mariana Sptiz, Helenice Charchat-Fichman
Objective: To investigate the most frequent depressive symptoms and their association with cognition in Parkinson's disease (PD) patients with mild cognitive impairment (MCI). Methods: 48 patients with PD and 44 controls (CG), aged between 50 and 80 years and with at least 4 years of formal education, all with MCI and none diagnosed with depression, were assessed. Patients and controls were matched for age, education, and Mini-Mental State Examination (MMSE) score...
April 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29210957/the-physiological-and-performance-effects-of-caffeine-gum-consumed-during-a-simulated-half-time-by-professional-academy-rugby-union-players
#9
Russell M, Reynolds N A, Crewther B T, Cook C J, Kilduff L
Despite the prevalence of caffeine as an ergogenic aid, few studies have examined the use of caffeinated gums, especially during half-time in team sports. The physiological (blood lactate, salivary hormone concentrations) and performance (repeated sprints, cognitive function) effects of consuming caffeine gum during a simulated half-time were examined. Professional academy rugby union players (n=14) completed this double-blind, randomized, counterbalanced study. Following pre-exercise measurements , players chewed a placebo (PL) gum for five min before a standardized warm-up and completing repeated sprint testing (RSSA1)...
November 27, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29203453/a-transferable-high-intensity-intermittent-exercise-improves-executive-performance-in-association-with-dorsolateral-prefrontal-activation-in-young-adults
#10
Sylwester Kujach, Kyeongho Byun, Kazuki Hyodo, Kazuya Suwabe, Takemune Fukuie, Radoslaw Laskowski, Ippeita Dan, Hideaki Soya
Although growing attention has been drawn to attainable, high-intensity intermittent exercise (HIE)-based intervention, which can improve cardiovascular and metabolic health, for sedentary individuals, there is limited information on the impact and potential benefit of an easily attainable HIE intervention for cognitive health. We aimed to reveal how acute HIE affects executive function focusing on underlying neural substrates. To address this issue, we examined the effects of acute HIE on executive function using the color-word matching Stroop task (CWST), which produces a cognitive conflict in the decision-making process, and its neural substrate using functional near infrared spectroscopy (fNIRS)...
December 1, 2017: NeuroImage
https://www.readbyqxmd.com/read/29202318/single-session-tdcs-over-the-left-dlpfc-disrupts-interference-processing
#11
Christian Frings, Thorsten Brinkmann, Maximilian A Friehs, Tim van Lipzig
Whether single session tDCS can impact upon cognition in healthy subjects is currently a heated debate against the background of inconsistent results. In view of the current methodological discussion concerning tDCS we developed an alternative approach to measure effects of single session tDCS on the Stroop task. The left DLPFC was stimulated in a pre-post design using a new electrode set-up (a 9 cm2 electrode was placed over the left DLPFC while a 35 cm2 was placed over the parieto-occipital cortex) contrasting anodal versus cathodal stimulation...
December 1, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/29201772/managing-encephalopathy-in-the-outpatient-setting
#12
REVIEW
Tarana Gupta, Sahaj Rathi, Radha K Dhiman
In cirrhosis of liver, hepatic encephalopathy (HE) has an important impact on health-related quality of life. It is important to define whether HE is episodic, recurrent, or persistent; types A, B, or C; overt HE or covert HE; and spontaneous or precipitated. The overt HE is clinically evident and needs hospitalization. Nonabsorbable disaccharides, rifaximin, and probiotics are proven to be useful in the treatment of overt HE. Covert HE includes both minimal HE and grade I HE. It is not apparent on routine clinical examination...
January 2017: Euroasian journal of hepato-gastroenterology
https://www.readbyqxmd.com/read/29201545/different-patterns-of-attentional-bias-in-antenatal-and-postpartum-depression
#13
Åsa Edvinsson, Alkistis Skalkidou, Charlotte Hellgren, Malin Gingnell, Lisa Ekselius, Mimmie Willebrand, Inger Sundström Poromaa
Background: Biased information processing in attention, memory, and interpretation is proposed to be central cognitive alterations in patients with major depressive disorder, but studies in women with peripartum depression are scarce. Because of the many similarities with depression in nonperipartum states as regards symptom profile and risk factors, we hypothesized that women with antenatal and postpartum depression would display attentional bias to negatively and positively valenced words...
November 2017: Brain and Behavior
https://www.readbyqxmd.com/read/29200984/mouth-rinsing-with-a-carbohydrate-solution-attenuates-exercise-induced-decline-in-executive-function
#14
Kana Konishi, Tetsuya Kimura, Atsushi Yuhaku, Toshiyuki Kurihara, Masahiro Fujimoto, Takafumi Hamaoka, Kiyoshi Sanada
Background: A decline in executive function could have a negative influence on the control of actions in dynamic situations, such as sports activities. Mouth rinsing with a carbohydrate solution could serve as an effective treatment for preserving the executive function in exercise. The purpose of this study was to examine the effects of mouth rinsing with a carbohydrate solution on executive function after sustained moderately high-intensity exercise. Methods: Eight young healthy participants completed 65 min of running at 75% V̇O2max with two mouth-rinsing conditions: with a carbohydrate solution (CHO) or with water (CON)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29198249/the-closing-in-phenomenon-in-an-ecological-walking-task
#15
Natascia De Lucia, Dario Grossi, Graziella Milan, Luigi Trojano
OBJECTIVES: Alzheimer's disease (AD) patients may show the Closing-in (CI), a tendency to reproduce figures close to or superimposed on the model. AD patients with CI might manifest reduced functional independence compared to AD patients without CI, but no study directly assessed if CI can hamper common daily living activities. To address this issue here we investigated whether AD patients with CI veer their walking trajectory toward irrelevant objects more often than AD patients without CI...
December 4, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/29198058/analyzing-gait-variability-and-dual-task-interference-in-patients-with-parkinson-s-disease-and-freezing-by-means-of-the-word-color-stroop-test
#16
Ana Francisca Rozin Kleiner, Aline S Pagnussat, Giulia di Prisco, Alessandro Vagnini, Fabrizio Stocchi, Maria Francesca De Pandis, Manuela Galli
The ability to carry out two tasks at once is critical to effective functioning in the real world and deficits are termed Dual-task interference or effect-DTE. DTE substantially compromised the gait of subjects with Parkinson's disease and freezing of gait (PD + FOG), leading to exaggerated slowing, increasing gait dysrhythmicity, and inducing FOG episodes. This study aimed to investigate the DTE in gait variability of subjects with PD and freezing of gait (PD + FOG). Thirty-three patients with PD + FOG and 14 healthy individuals (REFERENCE) took part at this study...
December 2, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29197200/conscious-attention-defect-and-inhibitory-control-deficit-in-parkinson-s-disease-mild-cognitive-impairment-a-comparison-study-with-amnestic-mild-cognitive-impairment-multiple-domain
#17
Davide Maria Cammisuli, Marco Timpano Sportiello
BACKGROUND: Frontal/executive dysfunction commonly occurs in Parkinso's disease - Mild Cognitive Impairment (PD-MCI patients). However, to date, the number of studies comparing PD-MCI and MCI patients of other etiologies are too small. The present study aims at clarifying the attention/working memory and executive dysfunction of PD-MCI patients in comparison to amnestic MCI multiple domain patients with first extended then abbreviated structural brain changes suggesting preclinical Alzheimer's Disease...
December 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/29192947/-executive-functions-in-frontal-lob-syndrome-a-case-report
#18
Özge Metin, Ali Evren Tufan, Nagihan Cevher Binici, Özge Saraçlı, Adnan Atalay, Ayşegül Yolga Tahiroğlu
Prefrontal cortex in frontal lobe (FL) is the center of executive functions (EF). FL damage can lead to executive dysfunction by influencing frontal-subcortical circuits (dorsolateral, orbitofrontal, ventromedial). Damage to the dorsolateral prefrontal cortex (DLPFC) can lead to deterioration in EF, whereas damage to the orbitofrontal cortex (OFC) can lead to personality changes with the characteristic of disinhibition and irritability. In addition, damage to the anterior cingulate cortex/medial prefrontal cortex (ACC/MPFC) can result in decreased spontaneity...
2017: Türk Psikiyatri Dergisi, Turkish Journal of Psychiatry
https://www.readbyqxmd.com/read/29192940/-the-relationship-of-interleukin-18-and-interleukin-6-levels-with-cognitive-functions-in-bipolar-disorder
#19
Filiz Civil Arslan, Ahmet Tiryaki, Evrim Özkorumak Karagüzel, Gizem Aral, Oğuz Sarıoğlu, İmran İnce, Sertaç Çankaya, Ahmet Alver
OBJECTIVE: Impairment in immune functions is proposed as a key factor in the cognitive decline in bipolar disorder (BD) however there is scarcity of research on the impact of inflammation on cognitive functions. Our aim is to compare IL-18 and IL-6 levels in BD patients and controls and to study the relationship between IL-18 and IL-6 levels and cognitive impairment METHOD: Thirty-six euthymic BD-I patients and 38 age, sex and educational level matched healthy controls were enrolled in the study...
2017: Türk Psikiyatri Dergisi, Turkish Journal of Psychiatry
https://www.readbyqxmd.com/read/29176946/individual-differences-in-verbal-and-spatial-stroop-tasks-interactive-role-of-handedness-and-domain
#20
Mariagrazia Capizzi, Ettore Ambrosini, Antonino Vallesi
A longstanding debate in psychology concerns the relation between handedness and cognitive functioning. The present study aimed to contribute to this debate by comparing performance of right- and non-right-handers on verbal and spatial Stroop tasks. Previous studies have shown that non-right-handers have better inter-hemispheric interaction and greater access to right hemisphere processes. On this ground, we expected performance of right- and non-right-handers to differ on verbal and spatial Stroop tasks. Specifically, relative to right-handers, non-right-handers should have greater Stroop effect in the color-word Stroop task, for which inter-hemispheric interaction does not seem to be advantageous to performance...
2017: Frontiers in Human Neuroscience
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