scholarly journals Angle discrimination depends on the shape of the triangle

2004 ◽  
Vol 4 (8) ◽  
pp. 660-660
Author(s):  
G. J. Kennedy ◽  
H. S. Orbach ◽  
G. Loffler
Keyword(s):  
Angle Discrimination

Acuity of horizontal angle discrimination by the echolocating bat,Eptesicus fuscus

1983 ◽  
Vol 153 (3) ◽  
pp. 321-330 ◽  
Author(s):  
J. A. Simmons ◽  
S. A. Kick ◽  
B. D. Lawrence ◽  
C. Hale ◽  
C. Bard ◽  
...  
Keyword(s):  
Eptesicus Fuscus ◽  
Horizontal Angle ◽  
Angle Discrimination

Angle discrimination based pointing and tracking for free-space communication links

2004 ◽  
Author(s):  
Narasimha S. Prasad ◽  
Patrick T. Kratovil ◽  
Charles Bjork ◽  
Neil J. Vallestero
Keyword(s):  
Free Space ◽  
Space Communication ◽  
Communication Links ◽  
Angle Discrimination ◽  
Free Space Communication

scholarly journals Tactile angle discriminability improvement: roles of training time intervals and different types of training tasks

2019 ◽  
Vol 122 (5) ◽  
pp. 1918-1927
Author(s):  
Wu Wang ◽  
Jiajia Yang ◽  
Yinghua Yu ◽  
Qiong Wu ◽  
Jiabin Yu ◽  
...  
Keyword(s):  
Perceptual Learning ◽  
Task Performance ◽  
Early Stage ◽  
Interval Training ◽  
Training Group ◽  
Orientation Discrimination ◽  
Time Interval ◽  
Time Intervals ◽  
Training Time ◽  
Angle Discrimination

Perceptual learning, which is not limited to sensory modalities such as vision and touch, emerges within a training session and between training sessions and is accompanied by the remodeling of neural connections in the cortex. However, limited knowledge exists regarding perceptual learning between training sessions. Although tactile studies have paid attention to between-session learning effects, there have been few studies asking fundamental questions regarding whether the time interval between training sessions affects tactile perceptual learning and generalization across tactile tasks. We investigated the effects of different training time intervals on the consecutive performance of a tactile angle discrimination (AD) task and a tactile orientation discrimination (OD) task training on tactile angle discriminability. The results indicated that in the short-interval training group, AD task performance significantly improved in the early stage of learning and nearly plateaued in the later stage, whereas in the long-interval training group, significant improvement was delayed and then also nearly plateaued in the later stage; additionally, improved OD task performance resulted in improved AD task performance. These findings suggest that training time interval affects the early stage of learning but not the later stage and that generalization occurs between different types of tactile tasks. NEW & NOTEWORTHY Perceptual learning, which constitutes important foundations of complicated cognitive processes, is learning better perception skills. We demonstrate that training time interval can affect the early stage of learning but not the later stage. Moreover, a tactile orientation discrimination training task can also improve tactile angle discrimination performance. These findings may expand the characteristics of between-session learning and help understand the mechanism of the generalization across tactile tasks.

Raised-Angle Discrimination under Passive Finger Movement

Perception ◽  
10.1068/p6264 ◽  
2010 ◽  
Vol 39 (7) ◽  
pp. 993-1006 ◽  
Author(s):  
Jinglong Wu ◽  
Jiajia Yang ◽  
Takashi Ogasa
Keyword(s):  
Finger Movement ◽  
Angle Discrimination

scholarly journals A jump to the left and a step to the right: A test of two accounts of peak shift

2019 ◽  
Vol 70 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Nicole J. Gallaghar ◽  
Steve Provost ◽  
Lewis A. Bizo
Keyword(s):  
Temporal Discrimination ◽  
Peak Shift ◽  
Adaptation Level ◽  
Hands On ◽  
Line Angle ◽  
Generalization Gradients ◽  
The Right ◽  
The Impact ◽  
Compound Cue ◽  
Angle Discrimination

Abstract“Peak Shift” usually occurs following intradimensional-discrimination training and involves a shift of the peak of the generalization gradient away from the original discriminative stimulus (S+) in a direction away from an S-. Two theoretical accounts of peak shift, the gradient interaction theory (GIT) and adaptation level theory (ALT), were compared. The effects of asymmetric test stimuli and the impact of instructions to participants for them to treat stimuli as members of categories on generalization gradients were investigated. In Experiment 1, the relation between peak shifts obtained when an extended asymmetric set of test stimuli was employed and the occurrence of categorization of the stimuli involved was investigated in four separate conditions. Two involved temporal discrimination, one involved line-angle discrimination, and one involved a compound line-angle and temporal cue discrimination. If participants treated the stimuli as belonging to discrete categories, such as hands-on a clock, rather than as being on continuous dimensions then responding to the compound cue was expected to result in attenuation of blocking of a peak shift. However, the peak shift obtained to the three cue types were the same. In Experiment 2, an independent group of participants was given explicit instructions to treat the line angles as if they were the hands of a clock face and this eliminated peak shift. The results from the present experiments support an ALT interpretation, although the peak shifts were significantly smaller in magnitude than predicted by this account.

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