Dissociable factors affect speed perception and discrimination.
نویسندگان
چکیده
Factors affecting our judgement of the speed of visual motion were investigated. Two types of judgement were made: perceived speed relative to a standard comparison stimulus, and discrimination between the speeds of similar stimuli. The factors affect ng these two judgements were found to be doubly dissociable, suggesting that they may be constrained by processing at different levels of the visual hierarchy. The results are discussed in terms of the 3-D interpretation of visual image motion, and related to possible neural substrates.
منابع مشابه
ارتباط مهارتهای ادراک بینایی غیروابسته به حرکت با مهارت خواندن در دانشآموزان فلج مغزی اسپاستیک
Objective: Cerebral palsy is one of the most common causes of physical disability in childhood that lead to various difficulties for children. These children may have abnormalities in visual perception. Visual perception plays an important role in learning of basic childhood’s skills. This research was designed to study the relation between each of subtests of visual perception with accur...
متن کاملUnconscious Local Motion Alters Global Image Speed
Accurate motion perception of self and object speed is crucial for successful interaction in the world. The context in which we make such speed judgments has a profound effect on their accuracy. Misperceptions of motion speed caused by the context can have drastic consequences in real world situations, but they also reveal much about the underlying mechanisms of motion perception. Here we show ...
متن کاملNeurophysiology and neuroanatomy of pitch perception: auditory cortex.
We present original results and review literature from the past fifty years that address the role of primate auditory cortex in the following perceptual capacities: (1) the ability to perceive small differences between the pitches of two successive tones; (2) the ability to perceive the sign (i.e., direction) of the pitch difference [higher (+) vs. lower (-)]; and (3) the ability to abstract pi...
متن کاملادراک پیری در سالمندان: یک مطالعه مروری
Objectives: Perception of ageing has been introduced as an independent predictor of functional disability and mortality in older adults. The present study aimed to investigate the perception of aging in the literature and reach a more comprehensive understanding of this concept. Methods & Materials: A comprehensive search of electronic databases of ProQuest, Web of Science, CINAHL,&n...
متن کاملTemporal and non-temporal sensory discrimination and their predictions of capacity- and speed-related aspects of psychometric intelligence
The temporal resolution power hypothesis explains individual differences in psychometric intelligence in terms of temporal acuity of the brain. This approach was supported by high correlations between temporal discrimination and psychometric intelligence. Psychometric intelligence, however, was frequently found to be related to non-temporal discrimination (e.g., frequency, intensity, brightness...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Clinical & experimental ophthalmology
دوره 28 3 شماره
صفحات -
تاریخ انتشار 2000