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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/28527825/corrigendum-to-dissociable-routes-for-personal-and-interpersonal-visual-enhancement-of-touch-cortex-73-2015-289-297
#1
Brianna Beck, Caterina Bertini, Patrick Haggard, Elisabetta Làdavas
No abstract text is available yet for this article.
May 11, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28544941/time-based-expectations-entail-preparatory-motor-activity
#2
Gregor Volberg, Roland Thomaschke
Human behavior is guided by expectations that facilitate perception of upcoming events or reaction to them. In natural settings expectations are often implicitly based on time, e.g., when making a phone call one would expect to hear either a person answering (earlier) or a voicemail greeting (later). We investigated how time-based expectations can improve performance in the absence of explicit prior information on the pending stimulus or the associated response. Visual stimuli were presented after a characteristic short or long foreperiod, and a forced-choice categorization using either the left or the right hand was required...
May 4, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28532579/interoceptive-ingredients-of-body-ownership-affective-touch-and-cardiac-awareness-in-the-rubber-hand-illusion
#3
Laura Crucianelli, Charlotte Krahé, Paul M Jenkinson, Aikaterini Katerina Fotopoulou
The sense of body ownership represents a fundamental aspect of bodily self-consciousness. Using multisensory integration paradigms, recent studies have shown that both exteroceptive and interoceptive information contribute to our sense of body ownership. Interoception refers to the physiological sense of the condition of the body, including afferent signals that originate inside the body and outside the body. However, it remains unclear whether individual sensitivity to interoceptive modalities is unitary or differs between modalities...
May 1, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28476292/from-heart-to-mind-linking-interoception-emotion-and-theory-of-mind
#4
LETTER
Punit Shah, Caroline Catmur, Geoffrey Bird
No abstract text is available yet for this article.
April 28, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28505581/spatiotemporal-reorganization-of-the-reading-network-in-adult-dyslexia
#5
Eddy Cavalli, Pascale Colé, Chotiga Pattamadilok, Jean-Michel Badier, Christelle Zielinski, Valérie Chanoine, Johannes C Ziegler
Developmental dyslexia is characterized by impairments in reading fluency and spelling that persist into adulthood. Here, we hypothesized that high-achieving adult dyslexics (i.e., university students with a history of dyslexia) manage to cope with these deficits by relying to a greater extent on morphological information than do non-impaired adult readers. We used magnetoencephalography (MEG) in a primed lexical decision task, in which we contrasted orthographic, morphological and semantic processing. Behavioral results confirmed that adult dyslexics did indeed rely to a greater extent on the semantic properties of morphemes than controls...
April 24, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28521154/-the-world-is-upside-down-the-innsbruck-goggle-experiments-of-theodor-erismann-1883-1961-and-ivo-kohler-1915-1985
#6
Pierre Sachse, Ursula Beermann, Markus Martini, Thomas Maran, Markus Domeier, Marco R Furtner
The "Innsbruck Goggle Experiments" on long-term wearing of reversing mirrors, prismatic and half prismatic goggles, and colored half goggles represent a milestone in research on adaptation (adapting to the introduced "disturbance") and after-effects (after removal of the "disturbance"). By means of these goggles it is, for example, possible to invert or distort the visual field (such as flipping top and bottom or left and right), as well as to observe how individuals learn to change the image back to vertical or recognize left and right...
April 23, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28532578/impaired-peripheral-reaching-and-on-line-corrections-in-patient-df-optic-ataxia-with-visual-form-agnosia
#7
Stéphanie Rossit, Monika Harvey, Stephen H Butler, Larissa Szymanek, Stéphanie Morand, Simona Monaco, Robert D McIntosh
An influential model of vision suggests the presence of two visual streams within the brain: a dorsal occipito-parietal stream which mediates action and a ventral occipito-temporal stream which mediates perception. One of the cornerstones of this model is DF, a patient with visual form agnosia following bilateral ventral stream lesions. Despite her inability to identify and distinguish visual stimuli, DF can still use visual information to control her hand actions towards these stimuli. These observations have been widely interpreted as demonstrating a double dissociation from optic ataxia, a condition observed after bilateral dorsal stream damage in which patients are unable to act towards objects that they can recognize...
April 22, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28511792/mechanisms-of-hemispheric-lateralization-a-replication-study
#8
Kim C Wende, Catherine Thiel, Jens Sommer, Frieder M Paulus, Sören Krach, Andreas Jansen
It has been shown, using functional magnetic resonance imaging (fMRI), that hemispheric lateralization of brain activity depends on the requirements of the cognitive task performed during the processing of a sensory stimulus rather than on the intrinsic characteristics of that stimulus [Stephan et al., 2003, Science 301 (5631): 384-6]. Task-dependent increase in the coupling of the anterior cingulate cortex (ACC), a region involved in cognitive control, and brain areas in the left prefrontal and right parietal cortex, respectively, regions involved in task execution, was proposed as the mechanism underlying this task-dependency of hemispheric lateralization...
April 22, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28544942/behavioural-and-neural-evidence-for-the-impact-of-fluency-context-on-conscious-memory
#9
Carlos Alexandre Gomes, Axel Mecklinger, Hubert Zimmer
It has been recently suggested that fluency may impact recognition memory performance when the fluency context varies from trial-to-trial. Surprisingly, such an effect has proved difficult to detect in the masked priming paradigm, one of the most popular means to increase fluency-based memory judgements. We conducted a functional magnetic resonance imaging (fMRI) experiment in which participants encoded words at study and, at test, performed a recognition memory task within a masked priming procedure. In order to optimise the chances of finding priming effects on recognition memory performance, we used low-frequency words, which have been shown to increase hits relative to false alarms and enhance masked priming effects...
April 21, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28501758/modulating-anosognosia-for-hemiplegia-the-role-of-dangerous-actions-in-emergent-awareness
#10
Daniela D'Imperio, Cristina Bulgarelli, Sara Bertagnoli, Renato Avesani, Valentina Moro
Anosognosia for hemiplegia is a lack of awareness of motor deficits following a right hemisphere lesion. Residual forms of awareness co-occur with an explicit denial of hemiplegia. The term emergent awareness refers to a condition in which awareness of motor deficits is reported verbally during the actual performance of an action involving the affected body part. In this study, two tasks were used to explore the potential effects of i) attempting actions which are impossible for sufferers of hemiplegia and ii) attempting actions which are potentially dangerous...
April 21, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28499144/patterns-of-response-to-scrambled-scenes-reveal-the-importance-of-visual-properties-in-the-organization-of-scene-selective-cortex
#11
David M Watson, Tom Hartley, Timothy J Andrews
Neuroimaging studies have found distinct patterns of neural response to different categories of scene in scene-selective regions of the human brain. However, it is not clear how information about scene category is represented in these regions. Images from different categories vary systematically in their visual properties as well as their semantic category. So, it is possible that patterns of neural response could reflect variation in visual properties. To address this question, we used fMRI to measure patterns of neural response to intact and scrambled scene categories...
April 21, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28495025/the-cognitive-neuroscience-of-source-memory-moving-the-ball-forward
#12
EDITORIAL
Karen J Mitchell, Sarah E MacPherson
No abstract text is available yet for this article.
April 21, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28494345/weight-gain-after-stn-dbs-the-role-of-reward-sensitivity-and-impulsivity
#13
Marilena Aiello, Roberto Eleopra, Francesco Foroni, Sara Rinaldo, Raffaella I Rumiati
Weight gain has been reported after deep brain stimulation of the subthalamic nucleus (STN-DBS), a widely used treatment for Parkinson's disease (PD). This nucleus has been repeatedly found to be linked both to reward and to inhibitory control, two key aspects in the control of food intake. In this study, we assessed whether weight gain experienced by patients with PD after STN-DBS, might be due to an alteration of reward and inhibitory functions. Eighteen patients with PD were compared to eighteen healthy controls and tested three times: before surgery, in ON medication and after surgery, respectively five days after the implantation in ON medication/OFF stimulation and at least three months after surgery in ON medication/ON stimulation...
April 21, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28526139/corrigendum-to-a-purely-confirmatory-replication-study-of-structural-brain-behavior-correlations-cortex-66-2015-115-133
#14
Max C Keuken, Alexander Ly, Wouter Boekel, Eric-Jan Wagenmakers, Luam Belay, Josine Verhagen, Scott D Brown, Birte U Forstmann
No abstract text is available yet for this article.
April 19, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28502534/disrupted-self-in-alzheimer-s-disease-beyond-midline-structures-commentary-on-wong-et%C3%A2-al
#15
Sarah Genon, Eric Salmon
No abstract text is available yet for this article.
April 19, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28499145/human-dorsomedial-parieto-motor-circuit-specifies-grasp-during-the-planning-of-goal-directed-hand-actions
#16
Michael Vesia, Michael Barnett-Cowan, Behzad Elahi, Gaayathiri Jegatheeswaran, Reina Isayama, Jason L Neva, Marco Davare, W Richard Staines, Jody C Culham, Robert Chen
According to one influential view, two specialized parieto-frontal circuits control prehension: a dorsomedial stream for hand transport during reaching and a dorsolateral stream for preshaping the fingers during grasping. However, recent evidence argues that an area within the dorsomedial stream-macaque area V6A and, its putative human homolog, superior parietal occipital cortex (SPOC) - encodes both hand transport and grip formation. We tested whether planning varied hand actions modulates functional connectivity between left SPOC and ipsilateral primary motor cortex (M1) using a dual-site, paired-pulse transcranial magnetic stimulation paradigm with two coils (dsTMS)...
April 19, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28499558/influence-of-response-bias-and-internal-external-source-on-lateral-posterior-parietal-successful-retrieval-activity
#17
Danielle R King, Michael B Miller
In studies of recognition memory, regions of the lateral posterior parietal cortex exhibit greater activity (as indexed by the fMRI BOLD signal) during correct recognition of "old" (studied) items than correct rejection of "new" (unstudied) items. This effect appears to be source-sensitive, with greater activity associated with recognition of perceived than imagined events. Parietal successful retrieval activity also varies with response bias, or the tendency to be conservative about making "old" judgments...
April 15, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28499557/the-effect-of-focal-cortical-frontal-and-posterior-lesions-on-recollection-and-familiarity-in-recognition-memory
#18
Vessela Stamenova, Fuqiang Gao, Sandra E Black, Michael L Schwartz, Natasha Kovacevic, Michael P Alexander, Brian Levine
Recognition memory can be subdivided into two processes: recollection (a contextually rich memory) and familiarity (a sense that an item is old). The brain network supporting recognition encompasses frontal, parietal and medial temporal regions. Which specific regions within the frontal lobe are critical for recollection vs. familiarity, however, are unknown; past studies of focal lesion patients have yielded conflicting results. We examined patients with focal lesions confined to medial polar (MP), right dorsal frontal (RDF), right frontotemporal (RFT), left dorsal frontal (LDF), temporal, and parietal regions and matched controls...
April 15, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28482181/longitudinal-changes-in-the-fronto-striatal-network-are-associated-with-executive-dysfunction-and-behavioral-dysregulation-in-huntington-s-disease-30-months-image-hd-data
#19
Juan F Domínguez D, Govinda Poudel, Julie C Stout, Marcus Gray, Phyllis Chua, Beth Borowsky, Gary F Egan, Nellie Georgiou-Karistianis
Neuropsychiatric disturbance-particularly executive dysfunction and behavioral dysregulation-is a common feature of Huntington's disease (HD), with implications for functional capacity and quality of life. No study to date has ascertained whether longitudinal change in brain activity is associated with neuropsychiatric deficits in HD. We used a set-response-shifting task together with functional magnetic resonance imaging to investigate 30-month longitudinal blood-oxygen level dependent (BOLD) signal changes in the fronto-striatal attentional control network in premanifest and symptomatic HD (pre-HD and symp-HD, respectively), relative to healthy control participants...
April 15, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28473064/the-mu-rhythm-can-mirror-insights-from-experimental-design-and-looking-past-the-controversy
#20
Lindsay C Bowman, Marian J Bakermans-Kranenburg, Kathryn H Yoo, Erin N Cannon, Ross E Vanderwert, Pier F Ferrari, Marinus H van IJzendoorn, Nathan A Fox
No abstract text is available yet for this article.
April 12, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
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