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Direct linkCohen, Justine E.; Ross, Robert S.; Stern, Chantal E. – Learning & Memory, 2018
Previous research has demonstrated that areas in the medial temporal lobe and prefrontal cortex (PFC) show increased activation during retrieval of overlapping sequences. In this study, we designed a task in which degree of overlap varied between conditions in order to parse out the contributions of hippocampal and prefrontal subregions as overlap…
Descriptors: Prediction, Brain Hemisphere Functions, Visual Stimuli, Diagnostic Tests
Pickron, Charisse B.; Iyer, Arjun; Fava, Eswen; Scott, Lisa S. – Child Development, 2018
This study examined differences in visual attention as a function of label learning from 6 to 9 months of age. Before and after 3 months of parent-directed storybook training with computer-generated novel objects, event-related potentials and visual fixations were recorded while infants viewed trained and untrained images (n = 23). Relative to a…
Descriptors: Child Development, Visual Perception, Attention Control, Parent Child Relationship
Martin, Chris B.; Mirsattari, Seyed M.; Pruessner, Jens C.; Pietrantonio, Sandra; Burneo, Jorge G.; Hayman-Abello, Brent; Kohler, Stefan – Neuropsychologia, 2012
In deja vu, a phenomenological impression of familiarity for the current visual environment is experienced with a sense that it should in fact not feel familiar. The fleeting nature of this phenomenon in daily life, and the difficulty in developing experimental paradigms to elicit it, has hindered progress in understanding deja vu. Some…
Descriptors: Evidence, Familiarity, Recognition (Psychology), Control Groups
Rahko, Jukka S.; Paakki, Jyri-Johan; Starck, Tuomo H.; Nikkinen, Juha; Pauls, David L.; Katsyri, Jari V.; Jansson-Verkasalo, Eira M.; Carter, Alice S.; Hurtig, Tuula M.; Mattila, Marja-Leena; Jussila, Katja K.; Remes, Jukka J.; Kuusikko-Gauffin, Sanna A.; Sams, Mikko E.; Bolte, Sven; Ebeling, Hanna E.; Moilanen, Irma K.; Tervonen, Osmo; Kiviniemi, Vesa – Journal of Autism and Developmental Disorders, 2012
FMRI was performed with the dynamic facial expressions fear and happiness. This was done to detect differences in valence processing between 25 subjects with autism spectrum disorders (ASDs) and 27 typically developing controls. Valence scaling was abnormal in ASDs. Positive valence induces lower deactivation and abnormally strong activity in ASD…
Descriptors: Autism, Scaling, Diagnostic Tests, Pervasive Developmental Disorders
de Montalembert, M.; Auclair, L.; Mamassian, P. – Brain and Cognition, 2010
Human observers use prior constraints to disambiguate a scene; in particular, light is preferentially seen as coming from above but also slightly from the left. One explanation of this lateral bias could be a cerebral hemispheric difference. The aim of the present study was to determine the preferred light source position for neglect patients. For…
Descriptors: Patients, Lighting, Brain Hemisphere Functions, Spatial Ability
Weng, Shih-Jen; Carrasco, Melisa; Swartz, Johnna R.; Wiggins, Jillian Lee; Kurapati, Nikhil; Liberzon, Israel; Risi, Susan; Lord, Catherine; Monk, Christopher S. – Journal of Child Psychology and Psychiatry, 2011
Background: Autism spectrum disorders (ASD) involve a core deficit in social functioning and impairments in the ability to recognize face emotions. In an emotional faces task designed to constrain group differences in attention, the present study used functional MRI to characterize activation in the amygdala, ventral prefrontal cortex (vPFC), and…
Descriptors: Control Groups, Reaction Time, Autism, Adolescents
Liu, Xinmin; Akula, Nirmala; Skup, Martha; Brotman, Melissa A.; Leibenluft, Ellen; McMahon, Francis J. – Journal of the American Academy of Child & Adolescent Psychiatry, 2010
Objective: Functional magnetic resonance imaging is commonly used to characterize brain activity underlying a variety of psychiatric disorders. A previous functional magnetic resonance imaging study found that amygdala activation during a face-processing task differed between pediatric patients with bipolar disorder (BD) and healthy controls. We…
Descriptors: Quality Control, Adolescents, Patients, Genetics
Teuscher, Ursina; Brang, David; Ramachandran, Vilayanur S.; Coulson, Seana – Brain and Cognition, 2010
Some people report that they consistently and involuntarily associate time events, such as months of the year, with specific spatial locations; a condition referred to as time-space synesthesia. The present study investigated the manner in which such synesthetic time-space associations affect visuo-spatial attention via an endogenous cuing…
Descriptors: Cues, Validity, Cognitive Processes, Spatial Ability
Belmonte, Matthew K.; Gomot, Marie; Baron-Cohen, Simon – Journal of Child Psychology and Psychiatry, 2010
Background: In addition to their more clinically evident abnormalities of social cognition, people with autism spectrum conditions (ASC) manifest perturbations of attention and sensory perception which may offer insights into the underlying neural abnormalities. Similar autistic traits in ASC relatives without a diagnosis suggest a continuity…
Descriptors: Autism, Pervasive Developmental Disorders, Attention, Physiology
Liddle, Elizabeth; Chou, Yu Ju; Jackson, Stephen – Neuropsychologia, 2009
Evidence from experiments designed to elicit the phenomenon of perisaccadic mislocalization of briefly presented probe stimuli suggests that mechanisms implicated in the planning of a saccade are also implicated in the means by which spatial constancy is maintained across saccades. We postulated that impairments of visual attention observed in…
Descriptors: Dyslexia, Attention, Cues, Visual Stimuli
Barense, Morgan D.; Gaffan, David; Graham, Kim S. – Neuropsychologia, 2007
There has been considerable debate as to whether structures in the medial temporal lobe (MTL) support both memory and perception, in particular whether the perirhinal cortex may be involved in the perceptual discrimination of complex objects with a large number of overlapping features. Similar experiments testing the discrimination of blended…
Descriptors: Patients, Memory, Brain Hemisphere Functions, Visual Perception
Ashwin, Chris; Baron-Cohen, Simon; Wheelwright, Sally; O'Riordan, Michelle; Bullmore, Edward T. – Neuropsychologia, 2007
Impaired social cognition is a core feature of autism. There is much evidence showing people with autism use a different cognitive style than controls for face-processing. We tested if people with autism would show differential activation of social brain areas during a face-processing task. Thirteen adults with high-functioning autism or Asperger…
Descriptors: Control Groups, Cognitive Style, Autism, Asperger Syndrome
Cagigas, Xavier E.; Vincent Filoteo, J.; Stricker, John L.; Rilling, Laurie M.; Friedrich, Frances J. – Brain and Cognition, 2007
Parkinson's disease (PD) patients and healthy controls were administered a flanker task that consisted of the presentation of colored targets and distractors. Participants were required to attend to the center target and identify its color. The stimulus displays were either congruent (i.e., the target and flankers were the same color) or…
Descriptors: Patients, Intervals, Diseases, Reaction Time
Gaffrey, Michael S.; Kleinhans, Natalia M.; Haist, Frank; Akshoomoff, Natacha; Campbell, Ashley; Courchesne, Eric; Muller, Ralph-Axel – Neuropsychologia, 2007
Language delay and impairment are salient features of autism. More specifically, there is evidence of atypical semantic organization in autism, but the functional brain correlates are not well understood. The current study used functional MRI to examine activation associated with semantic category decision. Ten high-functioning men with autism…
Descriptors: Visual Stimuli, Control Groups, Semantics, Autism
Kylliainen, Anneli; Hietanen, Jari K. – Journal of Child Psychology and Psychiatry, 2004
Background: The aim of this study was to investigate attention orienting triggered by another's gaze direction in autism. Method: Twelve high-functioning children with autism and gender- and age-matched normal control children were studied using two tasks. In the first task, children were asked to detect laterally presented target stimuli preceded…
Descriptors: Visual Stimuli, Autism, Attention Control, Eye Movements
