Conscious perception in patients with prefrontal damage
| Autor: | Gonzalo Olivares, Ana B. Chica, Estrella Ródenas, Mónica Triviño, Heriberto Busquier, Itsaso Colás |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male Consciousness Conscious perception Cognitive Neuroscience media_common.quotation_subject Prefrontal Cortex Experimental and Cognitive Psychology Sensory system Neuropsychological Tests 050105 experimental psychology Neurosurgical Procedures 03 medical and health sciences Behavioral Neuroscience 0302 clinical medicine Perception Brain Injuries Traumatic Neural Pathways medicine Meningeal Neoplasms Humans 0501 psychology and cognitive sciences In patient Attention media_common Aged Prefrontal lobe Neural correlates of consciousness 05 social sciences Superior longitudinal fasciculus Middle Aged Stroke medicine.anatomical_structure Case-Control Studies Sensory Thresholds Visual Perception Female Psychology Meningioma Neuroscience 030217 neurology & neurosurgery |
| Zdroj: | Neuropsychologia. 129 |
| ISSN: | 1873-3514 |
| Popis: | We are conscious and verbally report some of the information reaching our senses, although a big amount of information is processed unconsciously. There is no agreement about the neural correlates of consciousness, with low-level theories proposing that neural processing on primary sensory brain regions is the most important neural correlate of consciousness, while high-level theories propose that activity within the fronto-parietal network is the key component of conscious processing (Block, 2009). Contrary to the proposal of high-level theories, patients with prefrontal lobe damage do not present clinical symptoms associated to consciousness deficits. In the present study, we explored the conscious perception of near-threshold stimuli in a group of patients with right prefrontal damage and a group of matched healthy controls. Results demonstrated that perceptual contrast to perceive the near-threshold targets was related to damage to the right dorsolateral prefrontal cortex, and with reduced integrity of the ventral branch of the right superior longitudinal fascicule (SLF III). These results suggest a causal role of the prefrontal lobe in conscious processing. |
| Databáze: | OpenAIRE |
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