Perceptual Learning and Transfer Study of First- and Second-order Motion Direction Discrimination*

Chen, Rong; Qiu, Zhuping; Zhang, Yang; Zhou, Yifeng

doi:10.3724/sp.j.1206.2009.00224

Cited by 6 publications

(34 citation statements)

References 23 publications

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“…Although the focus of Chen et al (2009) on the up-front transformation might seem to be an important difference from the present study, it is difficult to see how it helps to explain the divergence in the results. Suppose that training in the CD motion task increases the sensitivity of the up-front transformation used by the second-order system.…”

Section: Discussioncontrasting

confidence: 82%

“…None of the three previous experiments investigating transfer of learning between Fourier and non-Fourier motion tasks (Chen et al, 2009; Petrov & Hayes, 2010; Zanker, 1999) yielded the clean double dissociation observed in the present study. On the contrary, the finding common to all three of these studies was that skill acquired through training in non-Fourier motion tasks transfers effectively to LD motion tasks; however, skill acquired through training in LD motion tasks fails to transfer to non-Fourier tasks.…”

Section: Discussioncontrasting

confidence: 73%

“…These considerations leave us in doubt as to the source of the difference between the results of Chen et al (2009) and those of the present study.…”

Section: Discussioncontrasting

confidence: 72%

“…The Chen et al (2009) experiment differed from the present experiment in a number of ways. First, Chen et al used drifting sinusoids rather than the global motion displays used here.…”

Section: Discussionmentioning

confidence: 73%

“…Chen et al (2009) used stimuli that seem well-chosen to address the question of transfer between first- and second-order motion systems. 2 Their task required participants to judge the movement direction of a parafoveal, 2-cpd drifting grating.…”

Section: Introductionmentioning

confidence: 99%

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Dissociation of first- and second-order motion systems by perceptual learning

Vaina

Chubb

2012

Atten Percept Psychophys

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Previous studies investigating transfer of perceptual learning between luminance-defined (LD) motion and texture-contrast-defined (CD) motion tasks have found little or no transfer from LD to CD motion tasks but nearly perfect transfer from CD to LD motion tasks. Here, we introduce a paradigm that yields a clean double dissociation: LD training yields no transfer to the CD task, but more interestingly, CD training yields no transfer to the LD task. Participants were trained in two variants of a global motion task. In one (LD) variant, motion was defined by tokens that differed from the background in mean luminance. In the other (CD) variant, motion was defined by tokens that had mean luminance equal to the background but differed from the background in texture contrast. The task was to judge whether the signal tokens were moving to the right or to the left. Task difficulty was varied by manipulating the proportion of tokens that moved coherently across the four frames of the stimulus display. Performance in each of the LD and CD variants of the task was measured as training proceeded. In each task, training produced substantial improvement in performance in the trained task; however, in neither case did this improvement show any significant transfer to the nontrained task.

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Section: Discussioncontrasting

confidence: 82%

Section: Discussioncontrasting

confidence: 73%

“…These considerations leave us in doubt as to the source of the difference between the results of Chen et al (2009) and those of the present study.…”

Section: Discussioncontrasting

confidence: 72%

“…The Chen et al (2009) experiment differed from the present experiment in a number of ways. First, Chen et al used drifting sinusoids rather than the global motion displays used here.…”

Section: Discussionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

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Dissociation of first- and second-order motion systems by perceptual learning

Vaina

Chubb

2012

Atten Percept Psychophys

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The Transfer of Perceptual Learning Between First- and Second-Order Fine Orientation Discriminations

Gong

Liu

Olzak

2023

Lecture Notes on Data Engineering and Communications Technologies

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Asymmetric transfer of perceptual learning of luminance- and contrast-modulated motion

Petrov

Hayes

2010

Journal of Vision

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Perceptual learning was used as a tool for studying motion perception. The pattern of transfer of learning of luminance- (LM) and contrast-modulated (CM) motion is diagnostic of how their respective processing pathways are integrated. Twenty observers practiced fine direction discrimination with either additive (LM) or multiplicative (CM) mixtures of a dynamic noise carrier and a radially isotropic texture modulator. The temporal frequency was 10 Hz, speed was 10 deg/s, and duration was 400 ms, with feedback. Group 1 pre-tested CM for 2 blocks, trained LM for 16 blocks, and post-tested CM for 6 blocks during 6 sessions on separate days. In Group 2, the LM and CM roles were reversed. The d' improved almost twofold in both groups. There seemed to be full transfer from CM to LM but no significant transfer from LM to CM. The pattern of post-switch improvement was asymmetric as well-no further learning during the LM post-test versus rapid relearning during the CM post-test. These strong asymmetries suggest a dual-pathway architecture with Fourier channels sensitive only to LM signals and non-Fourier channels sensitive to both LM and CM. We hypothesize that the channels tuned for the same motion direction but different carriers are integrated using a MAX operation.

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Perceptual Learning and Transfer Study of First- and Second-order Motion Direction Discrimination*

Cited by 6 publications

References 23 publications

Dissociation of first- and second-order motion systems by perceptual learning

Dissociation of first- and second-order motion systems by perceptual learning

The Transfer of Perceptual Learning Between First- and Second-Order Fine Orientation Discriminations

Asymmetric transfer of perceptual learning of luminance- and contrast-modulated motion

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