Perceptual learning in a nonretinotopic frame of reference.

Perceptual learning in a nonretinotopic frame of reference.
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DOI:
10.1177/0956797610376074
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发表时间:
2010-08
影响因子:
8.2
通讯作者:
Herzog MH
Herzog MH
中科院分区:
心理学1区
文献类型:
--
作者:
Otto TU;Oğmen H;Herzog MH

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感知学习是通过实践提高感知的能力。感知学习通常是特定的任务和学习的功能。例如,如果刺激旋转90°或呈现在不同的位置,则特定刺激的性能改善不会转移。这些发现通常被认为是方向特异性的,视网膜定位编码过程在训练过程中发生变化的证据。在这项研究中,我们使用了一种新的掩蔽范式,其中在一个不可见的,斜游标刺激的偏移被认为是在一个对齐的垂直或水平侧翼刺激在不同的位置。我们的研究结果表明,学习是具体的游标偏移的感知方向,但不是其实际的方向和位置。具体的编码过程不能用来解释这种改进。我们认为,知觉学习涉及的变化,nonretinotopic,注意读出过程。
Perceptual learning is the ability to improve perception through practice. Perceptual learning is usually specific for the task and features learned. For example, improvements in performance for a certain stimulus do not transfer if the stimulus is rotated by 90° or is presented at a different location. These findings are usually taken as evidence that orientation-specific, retinotopic encoding processes are changed during training. In this study, we used a novel masking paradigm in which the offset in an invisible, oblique vernier stimulus was perceived in an aligned vertical or horizontal flanking stimulus presented at a different location. Our results show that learning is specific for the perceived orientation of the vernier offset but not for its actual orientation and location. Specific encoding processes cannot be invoked to explain this improvement. We propose that perceptual learning involves changes in nonretinotopic, attentional readout processes.
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发表时间: 2007-02-20
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