scholarly journals Shared space, separate processes: Neural activation patterns for auditory description and visual object naming in healthy adults

2013 ◽  
Vol 35 (6) ◽  
pp. 2507-2520 ◽  
Author(s):  
Marla J. Hamberger ◽  
Christian G. Habeck ◽  
Spiro P. Pantazatos ◽  
Alicia C. Williams ◽  
Joy Hirsch
Keyword(s):  
Healthy Adults ◽  
Visual Object ◽  
Object Naming ◽  
Neural Activation ◽  
Activation Patterns ◽  
Shared Space ◽  
Visual Object Naming

scholarly journals Time-Varying Effective Connectivity during Visual Object Naming as a Function of Semantic Demands

2015 ◽  
Vol 35 (23) ◽  
pp. 8768-8776 ◽  
Author(s):  
C. Poch ◽  
M. I. Garrido ◽  
J. M. Igoa ◽  
M. Belinchon ◽  
I. Garcia-Morales ◽  
...  
Keyword(s):  
Effective Connectivity ◽  
Visual Object ◽  
Object Naming ◽  
Time Varying ◽  
Visual Object Naming

Visual object naming in patients with small lesions centered at the left temporopolar region

2014 ◽  
Vol 221 (1) ◽  
pp. 473-485 ◽  
Author(s):  
Pablo Campo ◽  
Claudia Poch ◽  
Rafael Toledano ◽  
José Manuel Igoa ◽  
Mercedes Belinchón ◽  
...  
Keyword(s):  
Visual Object ◽  
Object Naming ◽  
Visual Object Naming

A visual object naming task standardized for the Croatian language: A tool for research and clinical practice

2013 ◽  
Vol 45 (4) ◽  
pp. 1144-1158 ◽  
Author(s):  
Maja Rogić ◽  
Ana Jerončić ◽  
Marija Bošnjak ◽  
Ana Sedlar ◽  
Darko Hren ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Naming Task ◽  
Visual Object ◽  
Object Naming ◽  
Visual Object Naming

scholarly journals Perseverative and Semantic Influences on Visual Object Naming Errors in Optic Aphasia: A Connectionist Account

1993 ◽  
Vol 5 (1) ◽  
pp. 89-117 ◽  
Author(s):  
David C. Plaut ◽  
Tim Shallice
Keyword(s):  
Visual Information ◽  
Semantic Processing ◽  
Visual Object ◽  
Object Naming ◽  
Neurological Damage ◽  
Short Term ◽  
Small Set ◽  
Deep Dyslexia ◽  
Visual Object Naming ◽  
Processing Of Visual Information

Although perseveration—the inappropriate repetition of previous responses—is quite common among patients with neurological damage, relatively few detailed computational accounts of its various forms have been put forth. A particularly well-documented variety involves the pattern of errors made by “optic aphasic” patients, who have a selective deficit in naming visually presented objects. Based on our previous work in modeling impaired reading via meaning in deep dyslexia, we develop a connectionist simulation of visual object naming. The major extension in the present work is the incorporation of short-term correlational weights that bias the network towards reproducing patterns of activity that have occurred on recently preceding trials. Under damage, the network replicates the complex semantic and perseverative effects found in the optic aphasic error pattern. Further analysis reveals that the perseverative effects are strongest when the lesions are near or within semantics, and are relatively mild when the preceding object evokes no response. Like optic aphasics, the network produces predominantly semantic rather than visual errors because, in contrast to reading, there is some structure in the mapping from visual to semantic representations for objects. Viewed together with the dyslexia simulations, the replication of complex empirical phenomena concerning impaired visual comprehension based on a small set of general connectionist principles strongly suggests that these principles provide important insights into the nature of semantic processing of visual information and its breakdown following brain damage.

High frequency gamma activity in the left hippocampus predicts visual object naming performance

2014 ◽  
Vol 135 ◽  
pp. 104-114 ◽  
Author(s):  
Carlos M. Hamamé ◽  
F.-Xavier Alario ◽  
Anais Llorens ◽  
Catherine Liégeois-Chauvel ◽  
Agnés Trébuchon-Da Fonseca
Keyword(s):  
High Frequency ◽  
Gamma Activity ◽  
Visual Object ◽  
Object Naming ◽  
Left Hippocampus ◽  
Visual Object Naming ◽  
Naming Performance

Functional neuroanatomy of visual object naming: a PET study

1996 ◽  
Vol 234 (2) ◽  
pp. 110-115 ◽  
Author(s):  
Motohiro Kiyosawa ◽  
Chihiro Inoue ◽  
Tsutomu Kawasaki ◽  
Takashi Tokoro ◽  
Kenji Ishii ◽  
...  
Keyword(s):  
Visual Object ◽  
Object Naming ◽  
Functional Neuroanatomy ◽  
Visual Object Naming

Conduction Aphasia with Intact Visual Object Naming

2014 ◽  
Vol 27 (2) ◽  
pp. 96-101 ◽  
Author(s):  
Ajay Kumar Pandey ◽  
Kenneth M. Heilman
Keyword(s):  
Visual Object ◽  
Object Naming ◽  
Conduction Aphasia ◽  
Visual Object Naming
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