The Relationship Between Visual Perception and Visual Mental Imagery: A Reappraisal of the Neuropsychological Evidence

  title={The Relationship Between Visual Perception and Visual Mental Imagery: A Reappraisal of the Neuropsychological Evidence},
  author={Paolo Bartolomeo},

Figures from this paper

The neural correlates of visual mental imagery: An ongoing debate
Interaction between visual perception and mental representations of imagery and memory in the early visual areas
While VSTM and mental imagery share neural resources, their neural mechanisms are partly dissociable at the level of early visual cortex, a differential effect was found for the subjective strength of the representations.
Disentangling visual imagery and perception of real-world objects
Visual and Motor Mental Imagery After Brain Damage
This chapter presents evidence from brain-damaged patients relevant to the debate concerning the neural underpinnings of visual and motor mental imagery capacities, and indicates that such a close correspondence only exists for motor imagery.
Contribution of right hemisphere to visual imagery: A visual working memory impairment?
It is hypothesized that a patient, IM, who suffered from an acute ischemic stroke who appeared to demonstrate relatively isolated impairment in visual imagery has a visual working memory deficit that impairs her ability to generate full visual representations of objects given their names, individual feature, or partial representations.
Effects of peripheral and central visual impairment on mental imagery capacity
Colour, Face, and Visuospatial Imagery Abilities in Low-Vision Individuals with Visual Field Deficits
It is suggested that visual memory is not definitively established, but rather needs perceptual practice to be maintained, and that visual mental imagery may involve some of the attentional–exploratory mechanisms that are employed in visual behaviour.
Unconscious Imagination and the Mental Imagery Debate
A modification of Kosslyn’s model of imagery is proposed that accommodates unconscious imagination and possible explanations of the quasi-pictorial phenomenology of conscious visual imagery are explored in light of the fact that its underlying neural substrates and mechanisms typically are distinct from those of visual experience.


Dissociation between mental imagery and object recognition in a brain-damaged patient
It is concluded that rich internal representations can be activated to support visual imagery even when they cannot support visually mediated perception of objects.
Is visual imagery really visual? Overlooked evidence from neuropsychology.
  • M. Farah
  • Psychology, Art
    Psychological review
  • 1988
Previously overlooked neuropsychological evidence on the relation between imagery and perception is reviewed, and its relative immunity to the foregoing alternative explanations is discussed.
Intact visual imagery and impaired visual perception in a patient with visual agnosia.
A model in which imagery and perception are strongly associated but are also functionally specialized is proposed, in which C.K. was able to draw objects in considerable detail from memory, and his knowledge of the visual appearance of objects was preserved on a variety of mental imagery tasks.
Preserved visual imagery in visual form agnosia
Topographical representations of mental images in primary visual cortex
Findings resolve a debate in the literature about whether imagery activates early visual cortex and indicate that visual mental imagery involves 'depictive' representations, not solely language-like descriptions12–14.
Motor and Visual Imagery as Two Complementary but Neurally Dissociable Mental Processes
This work investigates the performance, by normal individual and subjects with a selective impairment in either motor or visual imagery, of an imagery task involving a mental rotation, and highlights the distinct but complementary contribution of covert motor and visual processes during mental rotation.
Cortical blindness and visual imagery
Investigations of three patients with cortical blindness provide strong evidence that primary visual cortices are not essential for the mediation of visual images recalled from memory.
Preserved Visual Imagery and Categorization in a Case of Associative Visual Agnosia
A patient with associative visual agnosia secondary to a penetrating bitemporooccipital lesion remained able to draw complex objects from memory but could not subsequently recognize his sketches, infering a preserved ability to derive internal visual images from semantic memory.