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pro vyhledávání: '"Robert D. Rafal"'
Autor:
Robert D. Rafal
Publikováno v:
Journal of Intelligence, Vol 12, Iss 5, p 50 (2024)
In all vertebrates, visual signals from each visual field project to the opposite midbrain tectum (called the superior colliculus in mammals). The tectum/colliculus computes visual salience to select targets for context-contingent visually guided beh
Externí odkaz:
https://doaj.org/article/3675160343cd4638871c6c27f7805a9d
Publikováno v:
Behavioural Neurology, Vol 25, Iss 2, Pp 103-109 (2012)
The current paper describes a rare case of a patient who suffered from unilateral apraxia of eye closure as a result of a bilateral stroke. Interestingly, the patient’s ability to voluntarily close both eyelids (i.e. blinking) was not affected, ind
Externí odkaz:
https://doaj.org/article/74d1a6be5f394cdaa7f343aa01e988ad
Publikováno v:
F1000Research, Vol 2 (2013)
Patients with hemispatial neglect (‘neglect’) following a brain lesion show difficulty responding or orienting to objects and events on the left side of space. Substantial evidence supports the use of a sensorimotor training technique called pris
Externí odkaz:
https://doaj.org/article/0b5565efaae34707b89e423a958c2d4e
Publikováno v:
Cortex. 122:97-107
The suprachiasmatic nucleus of the hypothalamus is the chief circadian pacemaker in the brain, and is entrained to day-night cycles by visual afferents from melanopsin containing retinal ganglion cells via the inferior accessory optic tract. Tracer s
Publikováno v:
European Journal of Neuroscience. 50:3804-3813
Current concepts of the extended amygdala posit that basolateral to central amygdala projections mediate fear‐conditioned autonomic alerting, whereas projections to the bed nucleus of the stria terminalis mediate sustained anxiety. Using diffusion
Publikováno v:
Neuropsychologia. 128:78-86
Probabilistic diffusion tractography was used to provide the first direct evidence for a subcortical pathway from the retina to the amygdala, via the superior colliculus and pulvinar, that transmits visual stimuli signaling threat. A bias to orient t
Autor:
Robert D. Rafal, Kristin Koller
Publikováno v:
Neuropsychologia. 128:276-281
The superior colliculus (SC) plays a critical role in mediating reflexive eye movements. Under optimal conditions, for example including a temporal ‘gap’ of 200 ms after fixation offset and prior to target onset, it is possible to isolate a popul
Publikováno v:
Frontiers in Neurology, Vol 3 (2012)
It is postulated that the decreased walking speed; small, shuffling steps; and ‘freezing’ shown by patients with Parkinson’s disease could stem from an inability to tilt the body forward enough to provide sufficient forward propulsion. In two r
Externí odkaz:
https://doaj.org/article/4afe1ef0f6d84515b61f3f174c8e1d0a
Publikováno v:
Brain and Cognition. 125:32-36
Human history is studded with instances where instinctive motivations take precedence over ethical choices. Nevertheless, the evidence of any linking between motivational states and morality has never been systematically explored. Here we addressed t
Publikováno v:
Journal of Neuropsychology. 13:305-327
Amnesic patients can re-experience emotions elicited by forgotten events, suggesting that brain systems for episodic and emotional memory are independent. However, the range of such emotional memories remains under-investigated (most studies employin