Antonio Vallesi

Dr. Antonio Vallesi

Post-doctoral Fellow Rotman Research Institute, Baycrest

Research Focus

Previous work has demonstrated several neuropsychological dissociations between different attentional processes such as monitoring, energizing, task-setting and inhibition, which seem to recruite distinct areas within prefrontal cortex.
I am interested in extending these findings from the level of single areas required for specific attentional processes to the level of the entire networks involved by means of neuroimaging techniques (fMRI and ERPs), and new tools to analize imaging data, such as Partial Least Square (PLS) multivariate analysis.
The ultimate goal is to understand how these networks change and reorganize themselves as a consequence of disabling events, ranging from normal aging to stroke.

Publications

Title Source (Journal/Book/Conference) Authors/Presenters Published On Type
Older Adults With Hearing Loss Have Reductions in Visual, Motor and Attentional Functioning Frontiers in Aging Neuroscience Gillingham SM, Vallesi A, Pichora-Fuller K, Alain C 1541480400 Journal Article
Mind-matter interactions and the frontal lobes of the brain: A novel neurobiological model of psi inhibition Explore: The Journal of Science and Healing Freedman M, Alain C, Black S, Ryan J, Chen R, Cusimano M, Whitehouse P, Jeffers S, Strother SC, Vallesi A, Gao F, Holmes M, Roseborough A, Binns M 1514782800 Journal Article
fMRI investigation of speed-accuracy strategy switching Human Brain Mapping Vallesi A, McIntosh AR, Crescentini C, Stuss DT 1333598400 Journal Article
fMRI investigation of speed–accuracy strategy switching Human Brain Mapping Vallesi A, McIntosh AR, Crescentini C, Stuss DT 1310961600 Journal Article
Task context and frontal lobe activation in the Stroop task. Journal of Cognitive Neuroscience Floden D, Vallesi A, Stuss DT 1301630400 Journal Article
Overrecruitment in the aging brain as a function of task demands: evidence for a compensatory view. Journal of Cognitive Neuroscience Vallesi A, McIntosh AR, Stuss DT 1293858000 Journal Article
How time modulates spatial responses. Cortex Vallesi A, McIntosh AR, Stuss DT 1293858000 Journal Article
Age effects on the asymmetry of the motor system: evidence from cortical oscillatory activity. Biological Psychology Vallesi A, McIntosh AR, Kovacevic N, Chan SC, Stuss DT 1285905600 Journal Article
Prefrontal Involvement in Switching Between Speed and Accuracy: An fMRI Study FRONTIERS OF NEUROSCIENCE Vallesi A, McIntosh AR, Crescentini C, Stuss DT 1277784000 Abstract
Excessive sub-threshold motor preparation for non-target stimuli in normal aging NeuoImage Vallesi A, Stuss DT 1263445200 Journal Article
Age-related differences in transfer costs: evidence from go/nogo tasks. Psychology and Aging Vallesi A, Hasher L, Stuss DT 1262322000 Journal Article
Cognitive association formation in episodic memory: Evidence from event-related potentials Neuropsychologia Kim AS, Vallesi A, Picton TW, Tulving E 1259643600 Journal Article
Decay of stimulus spatial code in horizontal and vertical Simon tasks Journal of General Psychology Vallesi A, Umilta CA 1254369600 Journal Article
Temporal preparation in aging: a functional MRI study Neuropsychologia Vallesi A, McIntosh AR, Stuss DT 1245384000 Journal Article
FMRI evidence of a functional network setting the criteria for withholding a response. NeuroImage Vallesi A, McIntosh AR, Alexander MP, Stuss DT 1243828800 Journal Article
When time shapes behavior: fMRI evidence of brain correlates of temporal monitoring Journal of Cognitive Neuroscience Vallesi A, MiIntosh AR, Shallice T, Stuss DT 1243828800 Journal Article
Neural basis of executive functions in young and elderly brains Rotman Rounds Vallesi A 1237780800 Presentation
Implicit and explicit processing of motor and non-motor verbs in the primary motor cortex: a single-pulse TMS study. Plos One Papeo L, Vallesi A, Isaja A, Rumiati RI 1230786000 Journal Article
Neural correlates of inference-driven attention in perceptual and symbolic tasks: An event-related potential study. Quarterly Journal of Experimental Psychology Vallesi A, Mapelli D, Cherubini P 1230786000 Journal Article
Age-related differences in processing irrelevant information: Evidence from event-related potentials. Neuropsychologia Vallesi A, Stuss DT, McIntosh AR, Picton TW 1230786000 Journal Article
An effect of spatial-temporal association of response codes: Understanding the cognitive representations of time Cognition Vallesi A, Binns MA, Shallice T 1209528000 Journal Article
Implicit temporal preparation: Neuropsychological, TMS and developmental evidence of functional dissociation Rotman Rounds Vallesi A 1188446400 Presentation
Role of the prefrontal cortex in the foreperiod effect: TMS evidence for dual mechanisms in temporal preparation. Cerebral Cortex Vallesi A, Shallice T, Walsh V 1167627600 Journal Article
Developmental dissociations of preparation over time: deconstructing the variable foreperiod phenomena Journal of Experimental Psychology: Human Perception and Performance Vallesi A, Shallice T 1167627600 Journal Article
The neural basis of temporal preparation: Insights from brain tumor patients. Neuropsychologia Vallesi A, Mussoni A, Mondani M, Budai R, Skrap M, Shallice T 1167627600 Journal Article
Top-down and bottom-up processes in the extrastriate cortex of cirrhotic patients: an ERP study. Clinical Neurophysiology Schiff S, Mapelli D, Vallesi A, Orsato R, Gatta A, Umilta C, Amodio P 1136091600 Journal Article
Prefrontal involvement in source memory: an electrophysiological investigation of accounts concerning confidence and accuracy. Brain Research Vallesi A, Shallice T 1136091600 Journal Article
Impairment of response inhibition precedes motor alteration in the early stage of liver cirrhosis: a behavioral and electrophysiological study. Metabolic Brain Disease Schiff S, Vallesi A, Mapelli D, Orsato R, Pellegrini A, Umilta C, Gatta A, Amodio P 1104555600 Journal Article
Horizontal and vertical Simon effect: different underlying mechanisms? Cognition Vallesi A, Mapelli D, Schiff S, Amodio P, Umilta C 1104555600 Journal Article

Academic Appointments

  • 2008–2009: Post-doctoral Fellow, Rotman Research Institute, Baycrest