Learning motion discrimination with suppressed and un-suppressed MT
نویسندگان
چکیده
منابع مشابه
Learning motion discrimination with suppressed and un-suppressed MT
Perceptual learning of motion direction discrimination is generally thought to rely on the middle temporal area of the brain (MT/V5). A recent study investigating learning of motion discrimination when MT was psychophysically suppressed found that learning was possible with suppressed MT, but only when the task was sufficiently easy [Lu, H., Qian, N., Liu, Z. (2004). Learning motion discriminat...
متن کاملLearning motion discrimination with suppressed MT
We studied perceptual learning in motion discrimination when the brain's middle temporal area (MT/V5) was functionally suppressed. This was achieved by using the "paired-dots" motion stimulus where the two dots in a pair always move in counter-phase over a short distance [J. Neurosci. 14 (1994) 7357]. The motion directional signal of the stimulus is therefore always 0 on average. As a result, t...
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The middle temporal area of the extrastriate visual cortex (area MT) is integral to motion perception and is thought to play a key role in the perceptual learning of motion tasks. We have previously found, however, that perceptual learning of a motion discrimination task is possible even when the training stimulus contains locally balanced, motion opponent signals that putatively suppress the r...
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generally found that observers rely on whichever neurons are most informative about the stimulus to perform similar psychophysical tasks [6]. Here we show that the responses of neurons in the middle temporal (MT) area of macaque monkeys provide a simple resolution to this paradox. We find that surroundsuppressed MT neurons integrate motion signals relatively quickly, so that by comparison non-s...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2006
ISSN: 0042-6989
DOI: 10.1016/j.visres.2006.01.005