Brain mechanisms underlying visual perception and visual mental imagery of Chinese pseudo-characters: An event-related potential study

2007 ◽  
Vol 1184 ◽  
pp. 202-209 ◽  
Author(s):  
Jiang Qiu ◽  
Hong Li ◽  
Qiang Liu ◽  
Qinglin Zhang
Keyword(s):  
Visual Perception ◽  
Mental Imagery ◽  
Event Related Potential ◽  
Visual Mental Imagery ◽  
Potential Study

scholarly journals Vocal threat enhances visual perception as a function of attention and sex

2019 ◽  
Vol 14 (7) ◽  
pp. 727-735 ◽  
Author(s):  
Annett Schirmer ◽  
Maria Wijaya ◽  
Esther Wu ◽  
Trevor B Penney
Keyword(s):  
Visual Perception ◽  
Dual Task ◽  
Visual Processing ◽  
Event Related Potential ◽  
Visual Task ◽  
Single Task ◽  
Potential Study ◽  
Visual Enhancement ◽  
Task Block ◽  
Task Irrelevant

Abstract This pre-registered event-related potential study explored how vocal emotions shape visual perception as a function of attention and listener sex. Visual task displays occurred in silence or with a neutral or an angry voice. Voices were task-irrelevant in a single-task block, but had to be categorized by speaker sex in a dual-task block. In the single task, angry voices increased the occipital N2 component relative to neutral voices in women, but not men. In the dual task, angry voices relative to neutral voices increased occipital N1 and N2 components, as well as accuracy, in women and marginally decreased accuracy in men. Thus, in women, vocal anger produced a strong, multifaceted visual enhancement comprising attention-dependent and attention-independent processes, whereas in men, it produced a small, behavior-focused visual processing impairment that was strictly attention-dependent. In sum, these data indicate that attention and listener sex critically modulate whether and how vocal emotions shape visual perception.

scholarly journals Fear selectively modulates visual mental imagery and visual perception

2010 ◽  
Vol 63 (5) ◽  
pp. 833-839 ◽  
Author(s):  
Grégoire Borst ◽  
Stephen M. Kosslyn
Keyword(s):  
Visual Perception ◽  
Mental Imagery ◽  
Visual Mental Imagery

PET studies of visual mental imagery and visual perception

NeuroImage ◽  
1996 ◽  
Vol 3 (3) ◽  
pp. S211 ◽  
Author(s):  
S.M. Kosslyn ◽  
W.L. Thompson ◽  
N.M. Alpert
Keyword(s):  
Visual Perception ◽  
Mental Imagery ◽  
Visual Mental Imagery

Brain areas underlying visual mental imagery and visual perception: an fMRI study

2004 ◽  
Vol 20 (2) ◽  
pp. 226-241 ◽  
Author(s):  
Giorgio Ganis ◽  
William L Thompson ◽  
Stephen M Kosslyn
Keyword(s):  
Visual Perception ◽  
Mental Imagery ◽  
Brain Areas ◽  
Visual Mental Imagery ◽  
Fmri Study

Mental images: Always present, never there

2005 ◽  
Vol 28 (6) ◽  
pp. 769-770 ◽  
Author(s):  
Fred W. Mast
Keyword(s):  
Visual Perception ◽  
Mental Imagery ◽  
Cognitive Processes ◽  
Visual Hallucinations ◽  
Mental Images ◽  
Visual Mental Imagery ◽  
Shed Light

Recent research on visual mental imagery plays an important role for the study of visual hallucinations. Not only are mental images involved in various cognitive processes, but they also share many processes with visual perception. However, we rarely confuse mental images with percepts, and recent neuroimaging studies shed light on the mechanisms that are differently activated in imagery and perception.

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