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Cortex; a Journal Devoted to the Study of the Nervous System and Behavior

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https://www.readbyqxmd.com/read/28410626/definition-limb-apraxia
#1
François Osiurak, Yves Rossetti
No abstract text is available yet for this article.
March 29, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28410625/in-search-of-a-shared-language-in-neuropsychology
#2
EDITORIAL
Roberto Cubelli, Sergio Della Sala
No abstract text is available yet for this article.
March 29, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28410624/definition-apraxia
#3
Roberto Cubelli
No abstract text is available yet for this article.
March 29, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28399434/avoiding-boredom-caudate-and-insula-activity-reflects-boredom-elicited-purchase-bias
#4
Dennis E Dal Mas, Bianca C Wittmann
People show a strong tendency to avoid boring situations, but the neural systems mediating this behavioural bias are yet unknown. We used functional magnetic resonance imaging (fMRI) to investigate how the anticipation of a boring task influences decisions to purchase entertainment. Participants accepted higher prices to avoid boredom compared to control tasks, and individual differences in boredom experience predicted the increase in price. This behavioural bias was associated with higher activity in the caudate nucleus during music purchases driven by boredom avoidance...
March 28, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28413070/processing-graspable-object-images-and-their-nouns-is-impaired-in-parkinson-s-disease-patients
#5
Giovanni Buccino, Riccardo Dalla Volta, Gennarina Arabia, Maurizio Morelli, Carmelina Chiriaco, Angela Lupo, Franco Silipo, Aldo Quattrone
According to embodiment, the recruitment of the motor system is necessary to process language material expressing a motor content. Coherently, an impairment of the motor system should affect the capacity to process language items with a motor content. The aim of the present study was to assess the capacity to process graspable objects and their nouns in Parkinson's disease (PD) patients and healthy controls. Participants saw photos and nouns depicting graspable and non-graspable objects. Scrambled images and pseudo-words served as control stimuli...
March 27, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28342547/corrigendum-to-altered-functional-connectivity-of-interoception-in-illness-anxiety-disorder-cortex-86-2017-22-32
#6
Dario Grossi, Mariachiara Longarzo, Mario Quarantelli, Elena Salvatore, Carlo Cavaliere, Paolofabrizio De Luca, Luigi Trojano, Marco Aiello
No abstract text is available yet for this article.
March 22, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28385210/interaction-between-identity-and-emotion-versus-visual-basic-object-recognition-deficits-a-commentary-on-biotti-cook
#7
Jan Van den Stock
No abstract text is available yet for this article.
March 21, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28384481/cognitive-states-influence-dopamine-driven-aberrant-learning-in-parkinson-s-disease
#8
James F Cavanagh, Andrea A Mueller, Darin R Brown, Jacqueline R Janowich, Jacqueline H Story-Remer, Ashley Wegele, Sarah Pirio Richardson
Individual differences in dopaminergic tone underlie tendencies to learn from reward versus punishment. These effects are well documented in Parkinson's patients, who vacillate between low and high tonic dopaminergic states as a function of medication. Yet very few studies have investigated the influence of higher-level cognitive states known to affect downstream dopaminergic learning in Parkinson's patients. A dopamine-dependent cognitive influence over learning would provide a candidate mechanism for declining cognitive integrity and motivation in Parkinson's patients...
March 20, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28431740/getting-a-grip-on-reality-grasping-movements-directed-to-real-objects-and-images-rely-on-dissociable-neural-representations
#9
Erez Freud, Scott N Macdonald, Juan Chen, Derek J Quinlan, Melvyn A Goodale, Jody C Culham
In the current era of touchscreen technology, humans commonly execute visually guided actions directed to two-dimensional (2D) images of objects. Although real, three-dimensional (3D), objects and images of the same objects share high degree of visual similarity, they differ fundamentally in the actions that can be performed on them. Indeed, previous behavioral studies have suggested that simulated grasping of images relies on different representations than actual grasping of real 3D objects. Yet the neural underpinnings of this phenomena have not been investigated...
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28399433/embodied-emotion-impairment-in-huntington-s-disease
#10
Iris Trinkler, Sévérine Devignevielle, Amal Achaibou, Romain V Ligneul, Pierre Brugières, Laurent Cleret de Langavant, Beatrice De Gelder, Rachael Scahill, Sophie Schwartz, Anne-Catherine Bachoud-Lévi
Theories of embodied cognition suggest that perceiving an emotion involves somatovisceral and motoric re-experiencing. Here we suggest taking such an embodied stance when looking at emotion processing deficits in patients with Huntington's Disease (HD), a neurodegenerative motor disorder. The literature on these patients' emotion recognition deficit has recently been enriched by some reports of impaired emotion expression. The goal of the study was to find out if expression deficits might be linked to a more motoric level of impairment...
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28395165/neural-responses-to-social-exclusion-in-adolescents-effects-of-peer-status
#11
Erik de Water, Gabry W Mies, Ili Ma, Maarten Mennes, Antonius H N Cillessen, Anouk Scheres
We examined whether adolescents' neural responses to social exclusion and inclusion are influenced by their own popularity and acceptance and by the popularity of their excluders and includers. Accepted adolescents are highly prosocial. In contrast, popular adolescents, who are central and influential, show prosocial as well as antisocial behaviors, such as peer exclusion. Fifty-two 12-16 year-old adolescents underwent an functional magnetic resonance imaging (fMRI) scan while playing the ball-tossing game Cyberball in which they received or did not receive the ball from other virtual players...
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28391039/divergent-functional-connectivity-during-attentional-processing-in-lewy-body-dementia-and-alzheimer-s-disease
#12
Xenia Kobeleva, Michael Firbank, Luis Peraza, Peter Gallagher, Alan Thomas, David J Burn, John O'Brien, John-Paul Taylor
Attention and executive dysfunction are features of Lewy body dementia (LBD) but their neuroanatomical basis is poorly understood. To investigate underlying dysfunctional attention-executive network (EXEC) interactions, we examined functional connectivity (FC) in 30 patients with LBD, 20 patients with Alzheimer's disease (AD), and 21 healthy controls during an event-related functional magnetic resonance imaging (fMRI) experiment. Participants performed a modified Attention Network Test (ANT), where they were instructed to press a button in response to the majority direction of arrows, which were either all pointing in the same direction or with one pointing in the opposite direction...
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28389005/anosodiaphoria-in-a-simenon-s-character
#13
Roberto Cubelli
No abstract text is available yet for this article.
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28384604/people-watching-the-perception-of-the-relative-body-proportions-of-the-self-and-others
#14
Sally A Linkenauger, Laura R Kirby, Kathleen C McCulloch, Matthew R Longo
We have an abundance of perceptual information from multiple modalities specifying our body proportions. Consequently, it seems reasonable for researchers to assume that we have an accurate perception of our body proportions. In contrast to this intuition, recent research has shown large, striking distortions in people's perceptions of the relative proportions of their own bodies. Specifically, individuals show large distortions when estimating the length of their body parts with a corporal metric, such as the hand, but not with a non-corporal object of the same length (Linkenauger et al...
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28384482/decoding-levels-of-representation-in-reading-a%C3%A2-representational-similarity-approach
#15
Simon Fischer-Baum, Dorothy Bruggemann, Ivan Felipe Gallego, Donald S P Li, Emilio R Tamez
Multiple levels of representation are involved in reading single words: visual representations of letter shape, orthographic representations of letter identity and order, phonological representations of the word's pronunciation, and semantic representations of its meaning. Previous lesion and neuroimaging studies have identified a network of regions recruited during word reading, including ventral occipital-temporal regions and the angular gyrus (AG). However, there is still debate about what information is being represented and processed in these regions...
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28372792/neurocognitive-disorders-and-chronic-manganese-exposure
#16
Paolo D Pigatto, Anna Ronchi, Gianpaolo Guzzi
No abstract text is available yet for this article.
March 18, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28391038/a-rational-inference-approach-to-group-and-individual-level-sentence-comprehension-performance-in-aphasia
#17
Tessa Warren, Michael Walsh Dickey, Teljer L Liburd
The rational inference, or noisy channel, account of language comprehension predicts that comprehenders are sensitive to the probabilities of different interpretations for a given sentence and adapt as these probabilities change (Gibson, Bergen & Piantadosi, 2013). This account provides an important new perspective on aphasic sentence comprehension: aphasia may increase the likelihood of sentence distortion, leading people with aphasia (PWA) to rely more on the prior probability of an interpretation and less on the form or structure of the sentence (Gibson, Sandberg, Fedorenko, Bergen & Kiran, 2015)...
March 15, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28384480/l-tyrosine-administration-modulates-the-effect-of-transcranial-direct-current-stimulation-on-working-memory-in-healthy-humans
#18
Bryant J Jongkees, Roberta Sellaro, Christian Beste, Michael A Nitsche, Simone Kühn, Lorenza S Colzato
BACKGROUND: Transcranial direct current stimulation (tDCS) is an increasingly popular method of modulating cognitive functions in humans. However, some doubt its efficacy as findings are inconsistent or remain unreplicated. It is speculated dopamine (DA) might play an important role in this inconsistency, by determining the direction and strength of the cognitive-behavioral effects of tDCS. However, so far evidence for this hypothesis has been correlational in nature, precluding definitive conclusions...
March 10, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28365490/abnormal-structural-connectivity-between-the-basal-ganglia-thalamus-and-frontal-cortex-in-patients-with-disorders-of-consciousness
#19
Ling Weng, Qiuyou Xie, Ling Zhao, Ruibin Zhang, Qing Ma, Junjing Wang, Wenjie Jiang, Yanbin He, Yan Chen, Changhong Li, Xiaoxiao Ni, Qin Xu, Ronghao Yu, Ruiwang Huang
Consciousness loss in patients with severe brain injuries is associated with reduced functional connectivity of the default mode network (DMN), fronto-parietal network, and thalamo-cortical network. However, it is still unclear if the brain white matter connectivity between the above mentioned networks is changed in patients with disorders of consciousness (DOC). In this study, we collected diffusion tensor imaging (DTI) data from 13 patients and 17 healthy controls, constructed whole-brain white matter (WM) structural networks with probabilistic tractography...
March 10, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28365489/subliminal-modulation-of-voluntary-action-experience-a-neuropsychological-investigation
#20
N Khalighinejad, A Kunnumpurath, C Bertini, E Ladavas, P Haggard
Human voluntary actions are often associated with a distinctive subjective experience termed 'sense of agency'. This experience could be a reconstructive inference triggered by monitoring one's actions and their outcomes, or a read-out of brain processes related to action preparation, or some hybrid of these. Participants pressed a key with the right index finger at a time of their own choice, while viewing a rotating clock. Occasionally they received a mild shock on the same finger. They were instructed to press the key as quickly as possible if they felt a shock...
March 10, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
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