(1) Animals with medial prefrontal cortex or parietal cortex lesions and sham-operated and non-operated controls were tested for the acquisition of an adjacent arm task that accentuated the importance of egocentric spatial localization and a cheese board task that accentuated the importance of allocentric spatial localization.
(2) This error can be explained on the one hand in terms of response dependence or egocentrism, or on the other hand as due to a lack of adequate spatial cues to allocentric position.
(3) Examples of the presence of properties of ego- and allocentric systems in SMA are given.
(4) A second group of rats was trained on a right-left discrimination (egocentric) and a place-learning task (allocentric).
(5) Both groups were impaired on a spatial landmark test which used luminous stimuli presented in the dark, in positions that varied randomly with respect to the monkey so that only allocentric cues were available.
(6) The data suggest a double dissociation of function between medial prefrontal cortex and parietal cortex in terms of coding of egocentric versus allocentric spatial information.
(7) Three types of neurons were identified by rotating the animals: egocentric and allocentric, and indeterminate.
(8) Of these place related neurons, 21 were also directionally selective with responses described in egocentric or allocentric coordinates or both.
(9) Thus, when an animal is not able to navigate on the basis of an extrapersonal (allocentric) system as a result of drug treatment, it will revert to an egocentric system.
(10) The results indicate that whether an impairment occurs on a task that is thought to test the perception of egocentric space may depend on whether the animal has to notice and attend to a remote cue, and that an attentional disorder may also explain impairments reported on tests of allocentric perception where the critical cue is spatially remote from the response site.
(11) This is in contrast to allocentric localization, where an organism localizes on the basis of cues external to the organism.
(12) The results suggest that these hippocampal neurons may be involved in identification of relations among various kinds of stimuli in different spatial frameworks (egocentric or allocentric) and this identification may be developed from multiple sensory modalities.
(13) The high doses of both CGP compounds as well as dizocilpine produced impairments in the acquisition of an egocentric orientation task and an allocentric reversal task indicated by an increased number of arm entries and re-entries.
(14) The results of this study support the hypothesis that PC plays an important role in the processing of information about space that is allocentric or external to the body.
(15) Two hypotheses have been proposed to account for this goal-invariance property: either (i) the goal is reconstructed and memorized in the stable frame of reference linked to the environment ("allocentric, coordinates") or (ii) the goal is selected and memorized in the sensors-related maps ("egocentric coordinates") and is continuously updated by efferent copies of the motor commands.
(16) Eighty male rats receiving either a unilateral or bilateral lesion of AGm or PPC were examined on an egocentric (adjacent arm) or an allocentric (cheeseboard) maze task.
(17) To test this prediction, two groups of rats were trained on two different egocentric memory tasks and two different allocentric memory tasks.
(18) The results show close relations between the coding of environmental space cues in egocentric and allocentric coordinates, and place related activity in the primate hippocampus.
(19) In contrast, bilateral PPC operates demonstrated a severe deficit in allocentric processing.
(20) Animals were successively trained on navigation in the Morris water maze (allocentric) and delayed spatial alternation in a water T-maze (egocentric).
Selfless
Definition:
(a.) Having no regard to self; unselfish.
Example Sentences:
(1) And we owe [Hickox] better than that and all the people who do this work better than that.” The White House indicated that it was urgently reviewing the federal guidelines for returning healthcare workers, “recognising that these medical professionals’ selfless efforts to fight this disease on the front lines will be critical to bringing this epidemic under control, the only way to eliminate the risk of additional cases here at home”.
(2) For now, Shimizu will not allow the children in her care to be interviewed and brushes off praise for her selflessness.
(3) It was a difficult decision because he has been continuously supportive of the direction that we have wanted to take the club, and he has worked tirelessly and selflessly for Inter, with both belief and passion.
(4) Ted Cruz reaches the dramatic climax of his pitch to voters with a flourish that is as subtle as it is selfless.
(5) SDLP councillor John Boyle said: "This selfless heroine put the lives of her passengers and people living around ahead of herself."
(6) But even more than this bravura dramatic writing, the story of Dr Rieux's selfless struggle with the illness, and the different responses of other citizens, colleagues and chance acquaintances, unfolds an urgent allegory of war.
(7) Announcing his death, his mother Jane said: "My heart is bursting with pride but breaking with pain for my courageous, selfless, inspirational son."
(8) I have never met or spoken with him, and it’s rare in this life to find such a selfless benefactor.
(9) In contrast, Duncan has been praised as the paragon of selfless basketball, sacrificing his numbers for the good of the team.
(10) Usually I send Cousin off on her own, but as it was her birthday, I selflessly went with her and our friend Olga.
(11) Aitken spoke of the army's "core values": selfless commitment, courage, discipline, integrity, loyalty and respect for others.
(12) Announcing Stephen's death, his mother wrote that "her heart is bursting with pride but breaking with pain for my courageous, selfless, inspirational son", and that the "ongoing support and outpouring of love for Stephen will help greatly at this difficult time, in the same way as it helped Stephen throughout his journey".
(13) These achievements are a testament to the courage, selflessness, and teamwork of America's Armed Forces.
(14) • Read Kevin McCarra's match report • Read Scott Murray's minute-by-minute report • Paul Hayward: Barça live the dream and nod off • David Pleat: Walcott's introduction turned the tide • Richard Williams: Fábregas was selfless to a fault "I am not good," he said.
(15) Four necessary constituents of a caring experience among nursing students emerged: Authentic presencing, selfless sharing, fortifying support, and enriching effects.
(16) The transformation is gynaecological, but the expectations are similar – she is selfless, she is a saint.
(17) Certainly, Duncan's selflessness has been on full display throughout these Finals, in which he has mostly been in the background while some of his less celebrated team-mates have shone.
(18) The MEK leadership moved swiftly to distance itself from Saddam Hussein, emphasising its opposition to the Islamic government in Tehran and casting its supporters as selfless and long suffering supporters of freedom and democracy.
(19) He never returned to politics, but on his death in 2006 was widely saluted for his selfless contribution to society.
(20) "They get our derision when they deserve our compassion and a political selflessness we've been unable to muster," it said.