Giorgio Ganis

Summary

Affiliation: Harvard University
Country: USA

Publications

  1. doi request reprint Lying in the scanner: covert countermeasures disrupt deception detection by functional magnetic resonance imaging
    Giorgio Ganis
    Department of Radiology, Harvard Medical School, Boston, MA 02115, USA
    Neuroimage 55:312-9. 2011
  2. pmc Concealed semantic and episodic autobiographical memory electrified
    Giorgio Ganis
    School of Psychology, Cognition Institute, University of Plymouth Plymouth, UK Massachusetts General Hospital, Athinoula A Martinos Center for Biomedical Imaging Charlestown, MA, USA Department of Radiology, Harvard Medical School Boston, MA, USA
    Front Hum Neurosci 6:354. 2012
  3. doi request reprint Detecting concealed knowledge using a novel attentional blink paradigm
    Giorgio Ganis
    Department of Radiology, Harvard Medical School, Boston, MA 02114, USA
    Appl Psychophysiol Biofeedback 34:189-96. 2009
  4. doi request reprint Neural processes underlying self- and other-related lies: an individual difference approach using fMRI
    Giorgio Ganis
    Harvard Medical School, Boston, Massachusetts, USA
    Soc Neurosci 4:539-53. 2009
  5. doi request reprint Visual mental imagery and perception produce opposite adaptation effects on early brain potentials
    Giorgio Ganis
    Department of Radiology, Harvard Medical School, Boston, MA 02115, USA
    Neuroimage 42:1714-27. 2008
  6. pmc Neuroimaging evidence for object model verification theory: Role of prefrontal control in visual object categorization
    Giorgio Ganis
    Department of Radiology, Harvard Medical School, Boston, MA 02115, USA
    Neuroimage 34:384-98. 2007
  7. doi request reprint Face-specificity is robust across diverse stimuli and individual people, even when interstimulus variance is zero
    Haline E Schendan
    School of Psychology, Cognition Institute, University of Plymouth, Plymouth, UK
    Psychophysiology 50:287-91. 2013
  8. ncbi request reprint Understanding the effects of task-specific practice in the brain: insights from individual-differences analyses
    Giorgio Ganis
    Department of Psychology, Harvard University, 33 Kirkland St, Cambridge, MA 02138, USA
    Cogn Affect Behav Neurosci 5:235-45. 2005
  9. ncbi request reprint Brain areas underlying visual mental imagery and visual perception: an fMRI study
    Giorgio Ganis
    Department of Psychology, Harvard University, Cambridge, MA 02138, USA
    Brain Res Cogn Brain Res 20:226-41. 2004
  10. ncbi request reprint Visual imagery in cerebral visual dysfunction
    Giorgio Ganis
    Department of Psychology, Harvard University, 33 Kirkland Street, Cambridge, MA 02138, USA
    Neurol Clin 21:631-46. 2003

Research Grants

Detail Information

Publications19

  1. doi request reprint Lying in the scanner: covert countermeasures disrupt deception detection by functional magnetic resonance imaging
    Giorgio Ganis
    Department of Radiology, Harvard Medical School, Boston, MA 02115, USA
    Neuroimage 55:312-9. 2011
    ..These findings show that fMRI-based deception detection measures can be vulnerable to countermeasures, calling for caution before applying these methods to real-world situations...
  2. pmc Concealed semantic and episodic autobiographical memory electrified
    Giorgio Ganis
    School of Psychology, Cognition Institute, University of Plymouth Plymouth, UK Massachusetts General Hospital, Athinoula A Martinos Center for Biomedical Imaging Charlestown, MA, USA Department of Radiology, Harvard Medical School Boston, MA, USA
    Front Hum Neurosci 6:354. 2012
    ..These findings show that the type of memory associated with a probe has both theoretical and practical importance for CIT research...
  3. doi request reprint Detecting concealed knowledge using a novel attentional blink paradigm
    Giorgio Ganis
    Department of Radiology, Harvard Medical School, Boston, MA 02114, USA
    Appl Psychophysiol Biofeedback 34:189-96. 2009
    ....
  4. doi request reprint Neural processes underlying self- and other-related lies: an individual difference approach using fMRI
    Giorgio Ganis
    Harvard Medical School, Boston, Massachusetts, USA
    Soc Neurosci 4:539-53. 2009
    ..The results confirmed both hypotheses and supported the utility of this individual differences approach in the study of deception in particular, as well in the study of complex cognitive phenomena more generally...
  5. doi request reprint Visual mental imagery and perception produce opposite adaptation effects on early brain potentials
    Giorgio Ganis
    Department of Radiology, Harvard Medical School, Boston, MA 02115, USA
    Neuroimage 42:1714-27. 2008
    ..These findings support image-percept equivalence theories and may explain, in part, why visual percepts and visual mental images are not routinely confused, even though both engage similar neural populations in the visual system...
  6. pmc Neuroimaging evidence for object model verification theory: Role of prefrontal control in visual object categorization
    Giorgio Ganis
    Department of Radiology, Harvard Medical School, Boston, MA 02115, USA
    Neuroimage 34:384-98. 2007
    ....
  7. doi request reprint Face-specificity is robust across diverse stimuli and individual people, even when interstimulus variance is zero
    Haline E Schendan
    School of Psychology, Cognition Institute, University of Plymouth, Plymouth, UK
    Psychophysiology 50:287-91. 2013
    ..Further, ISV contributes 0 to 37% to N170 face-specificity. These findings provide evidence for optimizing face processing science. The paradigm can apply to any research in which ISV may be uncontrolled (e.g., category comparisons)...
  8. ncbi request reprint Understanding the effects of task-specific practice in the brain: insights from individual-differences analyses
    Giorgio Ganis
    Department of Psychology, Harvard University, 33 Kirkland St, Cambridge, MA 02138, USA
    Cogn Affect Behav Neurosci 5:235-45. 2005
    ..In short, individual-differences analyses provided insights into the relation between changes in brain activation and changes in accompanying performance, and these insights were not provided by standard group-based analyses...
  9. ncbi request reprint Brain areas underlying visual mental imagery and visual perception: an fMRI study
    Giorgio Ganis
    Department of Psychology, Harvard University, Cambridge, MA 02138, USA
    Brain Res Cogn Brain Res 20:226-41. 2004
    ..This finding may indicate that cognitive control processes function comparably in both imagery and perception, whereas at least some sensory processes may be engaged differently by visual imagery and perception...
  10. ncbi request reprint Visual imagery in cerebral visual dysfunction
    Giorgio Ganis
    Department of Psychology, Harvard University, 33 Kirkland Street, Cambridge, MA 02138, USA
    Neurol Clin 21:631-46. 2003
    ..The brain is an enormously intricate organ, and even within a circumscribed domain such as imagery it seems to process information in complex and subtle ways...
  11. ncbi request reprint An electrophysiological study of scene effects on object identification
    Giorgio Ganis
    Department of Psychology, Harvard University, Cambridge, MA 02138, USA
    Brain Res Cogn Brain Res 16:123-44. 2003
    ..We speculate that the N390 scene congruity effect reflects the action of visual scene schemata stored in the anterior temporal lobe...
  12. ncbi request reprint Repetitive transcranial magnetic stimulation of human area MT/V5 disrupts perception and storage of the motion aftereffect
    Hugo Theoret
    Laboratory for Magnetic Brain Stimulation, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, KS 454, Boston, MA 02215, USA
    Neuropsychologia 40:2280-7. 2002
    ..These data provide experimental support for the notion that MT/V5 subserves perception and storage of the motion aftereffect...
  13. pmc Adaptive filtering to reduce global interference in non-invasive NIRS measures of brain activation: how well and when does it work?
    Quan Zhang
    Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA 02129, USA
    Neuroimage 45:788-94. 2009
    ....
  14. ncbi request reprint Frontostriatal circuits are necessary for visuomotor transformation: mental rotation in Parkinson's disease
    Melissa M Amick
    Department of Psychology, Boston University, 648 Beacon Street, 2nd Floor, Boston, MA 02215, USA
    Neuropsychologia 44:339-49. 2006
    ..Moreover, frontostriatal motor systems and the parietal lobes play a necessary role during the mental rotation of hands, which requires integrating visuospatial cognition with motor imagery...
  15. pmc Electrophysiological potentials reveal cortical mechanisms for mental imagery, mental simulation, and grounded (embodied) cognition
    Haline E Schendan
    School of Psychology, University of Plymouth, Plymouth Devon, UK Massachusetts General Hospital, Athinoula A Martinos Center for Biomedical Imaging Charlestown, MA, USA
    Front Psychol 3:329. 2012
    ..Findings also suggest that automatic mental simulation of the visual shape of faces and objects operates between 200 and 400 ms, and strategic mental simulation operates between 400 and 700 ms...
  16. doi request reprint The N170, not the P1, indexes the earliest time for categorical perception of faces, regardless of interstimulus variance
    Giorgio Ganis
    School of Psychology, University of Plymouth, Drake Circus, Plymouth, Devon PL4 8AA, UK
    Neuroimage 62:1563-74. 2012
    ..This conclusively refutes the ISV account while strongly supporting category as a critical factor driving N170 face selectivity...
  17. ncbi request reprint Visual cortex excitability increases during visual mental imagery--a TMS study in healthy human subjects
    Roland Sparing
    Laboratory for Magnetic Brain Stimulation, Department of Neurology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02214, USA
    Brain Res 938:92-7. 2002
    ..These findings demonstrate for the first time a short-term, task-dependent modulation of PT. These results constitute evidence that early visual areas participate in visual imagery processing...
  18. ncbi request reprint Four types of visual mental imagery processing in upright and tilted observers
    Fred W Mast
    Department of Psychology, Harvard University, William James Hall, 33 Kirkland Street, Cambridge, MA 02138, USA
    Brain Res Cogn Brain Res 17:238-47. 2003
    ..Performance in the image composition and detection tasks depended on body position, whereas there was no such effect for the transformation and resolution tasks...
  19. ncbi request reprint Assessing the neural correlates of self-enhancement bias: a transcranial magnetic stimulation study
    Virginia S Y Kwan
    Department of Psychology, Princeton University, Princeton, NJ, USA
    Exp Brain Res 182:379-85. 2007
    ..Together, these findings suggest that the MPFC may influence self-enhancement...

Research Grants1

  1. DOT and fMRI Studies of Visual Perception and Imagery
    Giorgio Ganis; Fiscal Year: 2005
    ....