Julius Fridriksson

Summary

Affiliation: University of South Carolina
Country: USA

Publications

  1. doi request reprint Motor speech perception modulates the cortical language areas
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, USA
    Neuroimage 41:605-13. 2008
  2. doi request reprint Transcranial brain stimulation to treat aphasia: a clinical perspective
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina 29208, USA
    Semin Speech Lang 33:188-202. 2012
  3. pmc Speech entrainment enables patients with Broca's aphasia to produce fluent speech
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Brain 135:3815-29. 2012
  4. pmc Left hemisphere plasticity and aphasia recovery
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina, USA
    Neuroimage 60:854-63. 2012
  5. ncbi request reprint Severe Broca's aphasia without Broca's area damage
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, SC, USA
    Behav Neurol 18:237-8. 2007
  6. pmc Treating visual speech perception to improve speech production in nonfluent aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Stroke 40:853-8. 2009
  7. doi request reprint Transcranial direct current stimulation improves naming reaction time in fluent aphasia: a double-blind, sham-controlled study
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC 29201, USA
    Stroke 42:819-21. 2011
  8. pmc Impaired speech repetition and left parietal lobe damage
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina 29208, USA
    J Neurosci 30:11057-61. 2010
  9. pmc Cortical mapping of naming errors in aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Hum Brain Mapp 30:2487-98. 2009
  10. pmc Activity in preserved left hemisphere regions predicts anomia severity in aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Cereb Cortex 20:1013-9. 2010

Detail Information

Publications37

  1. doi request reprint Motor speech perception modulates the cortical language areas
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, USA
    Neuroimage 41:605-13. 2008
    ..These findings suggest that the frontal language area plays a role in visual speech perception and highlight the differential roles of the classical speech and language areas in processing others' motor speech movements...
  2. doi request reprint Transcranial brain stimulation to treat aphasia: a clinical perspective
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina 29208, USA
    Semin Speech Lang 33:188-202. 2012
    ..Our aim is to provide speech-language pathologists with an overview of the current state of literature on transcranial brain stimulation, as initial findings show it may be a promising new tool for aphasia rehabilitation...
  3. pmc Speech entrainment enables patients with Broca's aphasia to produce fluent speech
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Brain 135:3815-29. 2012
    ..Preliminary results suggest that training with speech entrainment improves speech production in Broca's aphasia providing a potential therapeutic method for a disorder that has been shown to be particularly resistant to treatment...
  4. pmc Left hemisphere plasticity and aphasia recovery
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina, USA
    Neuroimage 60:854-63. 2012
    ....
  5. ncbi request reprint Severe Broca's aphasia without Broca's area damage
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, SC, USA
    Behav Neurol 18:237-8. 2007
  6. pmc Treating visual speech perception to improve speech production in nonfluent aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Stroke 40:853-8. 2009
    ..Based on these findings, this study examined the utility of targeting visual speech perception to improve speech production in nonfluent aphasia...
  7. doi request reprint Transcranial direct current stimulation improves naming reaction time in fluent aphasia: a double-blind, sham-controlled study
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC 29201, USA
    Stroke 42:819-21. 2011
    ..The current study further examined this issue in a more tightly controlled experiment in participants with fluent aphasia...
  8. pmc Impaired speech repetition and left parietal lobe damage
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina 29208, USA
    J Neurosci 30:11057-61. 2010
    ....
  9. pmc Cortical mapping of naming errors in aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Hum Brain Mapp 30:2487-98. 2009
    ....
  10. pmc Activity in preserved left hemisphere regions predicts anomia severity in aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Cereb Cortex 20:1013-9. 2010
    ..These findings are consistent with others who suggests that residual language function following stroke relies on preserved cortical areas in the left hemisphere...
  11. pmc Preservation and modulation of specific left hemisphere regions is vital for treated recovery from anomia in stroke
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina 29208, USA
    J Neurosci 30:11558-64. 2010
    ..In general, it seems likely that a similar relationship between cortical preservation and recruitment may also pertain to recovery from other functional impairments in chronic stroke...
  12. ncbi request reprint Age-related variability in cortical activity during language processing
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    J Speech Lang Hear Res 49:690-7. 2006
    ..The present study investigated the extent of cortical activity during overt picture naming using functional magnetic resonance imaging (fMRI)...
  13. ncbi request reprint Brain damage and cortical compensation in foreign accent syndrome
    Julius Fridriksson
    Department of Communicative Sciences and Disorders, University of South Carolina, SC, USA
    Neurocase 11:319-24. 2005
    ....
  14. pmc Measuring and inducing brain plasticity in chronic aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    J Commun Disord 44:557-63. 2011
    ..Overall, these four studies support the notion that the intact cortex in the lesioned left hemisphere supports anomia recovery in aphasia...
  15. pmc Neural correlates of phonological and semantic-based anomia treatment in aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Neuropsychologia 45:1812-22. 2007
    ..These findings imply that cortical areas not traditionally related to language processing may support anomia recovery in some patients with chronic aphasia...
  16. ncbi request reprint Neural recruitment associated with anomia treatment in aphasia
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Neuroimage 32:1403-12. 2006
    ..This is the first study to employ multiple pre- and post-treatment fMRI sessions in the study of treatment-induced recovery from aphasia and has implications for future studies of brain plasticity in stroke...
  17. ncbi request reprint Measuring the hemodynamic response in chronic hypoperfusion
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, USA
    Neurocase 12:146-50. 2006
    ..This work has clear implications for understanding stroke using functional MRI...
  18. pmc Spatial attention evokes similar activation patterns for visual and auditory stimuli
    David V Smith
    University of South Carolina, Columbia, SC, USA
    J Cogn Neurosci 22:347-61. 2010
    ..Collectively, these results suggest that the neural mechanisms supporting spatial attention are largely similar across both visual and auditory modalities...
  19. pmc Modulation of frontal lobe speech areas associated with the production and perception of speech movements
    Julius Fridriksson
    Department of Communication Sciences and Disorders, University of South Carolina, Williams Brice Nursing Building, 6th Floor, 1621 Greene Street, Columbia, SC 29280, USA
    J Speech Lang Hear Res 52:812-9. 2009
    ..The purpose of this study was to investigate neural recruitment in cortical areas commonly associated with speech production during the production and visual perception of speech...
  20. pmc Allocentric neglect strongly associated with egocentric neglect
    Christopher Rorden
    Department of Psychology, University of South Carolina, Columbia, SC 29208, USA
    Neuropsychologia 50:1151-7. 2012
    ..We discuss how different anatomical and behavioral findings can be explained in a unified physiologically plausible framework, whereby allocentric and egocentric effects interact...
  21. ncbi request reprint What is in a name? Spatial brain circuits are used to track discourse references
    Amit Almor
    Department of Psychology, University of South Carolina, Columbia, South Carolina 29208, USA
    Neuroreport 18:1215-9. 2007
    ..The intraparietal sulcus activation suggests that this integration relies on brain regions used for spatial attention and perceptual integration...
  22. pmc Obligatory Broca's area modulation associated with passive speech perception
    Travis H Turner
    Department of Communication Sciences and Disorders, University of South Carolina, SC 29208, USA
    Neuroreport 20:492-6. 2009
    ..Comparison revealed Broca's area to be more active when observing speech. These findings provide further support for Broca's area in speech perception and have clear implications for rehabilitation of aphasia...
  23. pmc An evaluation of traditional and novel tools for lesion behavior mapping
    Chris Rorden
    Department of Communication Sciences and Disorders, University of South Carolina, SC 29208, USA
    Neuroimage 44:1355-62. 2009
    ..Therefore, we suggest that nonparametric measures or the Welch's t-test are more appropriate than the conventional pooled variance t-test used by AnaCOM...
  24. pmc Temporal order processing of syllables in the left parietal lobe
    Dana Moser
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    J Neurosci 29:12568-73. 2009
    ..Furthermore, a breakdown in this interface may explain some components of the speech deficits observed after posterior damage to the left hemisphere...
  25. ncbi request reprint Cognitive performance and neural correlates of detecting driving hazards in healthy older adults
    Victor A Hirth
    Division of Geriatrics, Department of Internal Medicine, University of South Carolina, Columbia, SC 29203, USA
    Dement Geriatr Cogn Disord 24:335-42. 2007
    ..We aimed to investigate, using a combination of functional MRI (fMRI) and a comprehensive neuropsychological battery, the anatomical and cognitive components of driving hazard recognition...
  26. pmc Neural recruitment for the production of native and novel speech sounds
    Dana Moser
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Neuroimage 46:549-57. 2009
    ..The role of the IFG as a storehouse and integrative processor for previously acquired routines is also discussed...
  27. pmc Damage to the anterior arcuate fasciculus predicts non-fluent speech production in aphasia
    Julius Fridriksson
    1 The Aphasia Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene St, Columbia, SC 29208, USA
    Brain 136:3451-60. 2013
    ..Simply put, damage to those regions results in non-fluent aphasic speech; when they are undamaged, fluent aphasias result. ..
  28. ncbi request reprint Speech perception in MRI scanner noise by persons with aphasia
    Eric W Healy
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    J Speech Lang Hear Res 50:323-34. 2007
    ..To examine reductions in performance on auditory tasks by aphasic and neurologically intact individuals as a result of concomitant magnetic resonance imaging (MRI) scanner noise...
  29. pmc Using transcranial direct-current stimulation to treat stroke patients with aphasia
    Julie M Baker
    Department of Communication Sciences and Disorders, Williams Brice Building, 1621 Greene St, University of South Carolina, Columbia, SC 29208, USA
    Stroke 41:1229-36. 2010
    ....
  30. pmc Cerebral perfusion in chronic stroke: implications for lesion-symptom mapping and functional MRI
    Jessica D Richardson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, USA
    Behav Neurol 24:117-22. 2011
    ..There was also a strong relationship between increased infarct size and decreased perfusion. These findings have implications for lesion-symptom mapping studies as well as research that relies on functional MRI to study chronic stroke...
  31. ncbi request reprint Speech apraxia without oral apraxia: can normal brain function explain the physiopathology?
    Leonardo Bonilha
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina 29209, USA
    Neuroreport 17:1027-31. 2006
    ..Speech movements did not recruit the insula, but activated the left inferior frontal gyrus, suggesting that Broca's area, but not the insula, is critical for speech articulation...
  32. doi request reprint Re-establishing Broca's initial findings
    Jessica D Richardson
    Department of Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Brain Lang 123:125-30. 2012
    ..Our findings suggest that Broca's initial conclusions associating acquired motor speech impairment with LIPC damage remain valid nearly 150years after his initial report on this issue...
  33. pmc Age-specific CT and MRI templates for spatial normalization
    Christopher Rorden
    Department of Psychology, University of South Carolina, Columbia, SC 29208, USA
    Neuroimage 61:957-65. 2012
    ..We have integrated these templates and processing algorithms into a simple SPM toolbox (http://www.mricro.com/clinical-toolbox/spm8-scripts)...
  34. ncbi request reprint Comparing fixed- and randomized-interval spaced retrieval in anomia treatment
    K Leigh Morrow
    Department of Communication Sciences and Disorders, University of South Carolina, 1621 Greene Street, Columbia, SC 29208, USA
    J Commun Disord 39:2-11. 2006
    ..This difference was only minimal suggesting that a less stringent stimulus schedule, as used in RISR, is sufficient for successful treatment outcome...
  35. ncbi request reprint Functional communication and executive function in aphasia
    Julius Fridriksson
    Communication Sciences and Disorders, University of South Carolina, Columbia, SC 29208, USA
    Clin Linguist Phon 20:401-10. 2006
    ..Based on these results, it appears that decreased executive functioning ability may coincide with decreased functional communication ability in persons with aphasia...
  36. ncbi request reprint Sentence comprehension and general working memory
    Dana C Moser
    Department of Communication Sciences and Disorders, Arnold School of Pubic Health, University of South Carolina, Columbia, SC 29208, USA
    Clin Linguist Phon 21:147-56. 2007
    ..These results suggest that SP may be supported by a general WM capacity, and therefore, some sentence comprehension difficulties observed in the clinical population may potentially be related to impairment in general WM...
  37. ncbi request reprint Periodicity and frequency coding in human auditory cortex
    Deborah A Hall
    MRC Institute of Hearing Research, University Park, Nottingham, NG7 2RD, UK
    Eur J Neurosci 24:3601-10. 2006
    ....