Brain regions involved in spatial frequency discrimination: evidence from fMRI

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Human brain regions involved in direction discrimination.

To obtain further evidence for the functional specialization and task-dependent processing in the human visual system, we used positron emission tomography to compare regional cerebral blood flow in two direction discrimination tasks and four control tasks. The stimulus configuration, which was identical in all tasks, included the motion of a random dot pattern, dimming of a fixation point, and...

متن کامل

brain regions involved in swallowing: evidence from stroke patients in a cross-sectional study

background: limited data available about the mechanisms of dysphagia and areas involving swallow after brain damage; accordingly it is hard to predict which cases are more likely to develop swallowing dysfunction based on the neuroimaging. the aim of this study was to investigate the relationship between brain lesions and dysphagia in a sample of acute conscious stroke patients. materials and m...

متن کامل

Brain Regions Involved in Long-term Spatial Memory: fMRI and Behavioural Studies by

In this thesis, I investigated the role of the hippocampus and other brain regions in longterm spatial memory. I used neuroimaging and behavioural techniques to compare spatial representations that are dependent on the hippocampus and those that rely on extra-hippocampal structures. In Experiment 1, I demonstrated that at least some spatial memories that are initially dependent on the hippocamp...

متن کامل

Spatial frequency discrimination in schizophrenia.

Pathways within the visual system can be distinguished on the basis of selectivity for low or high spatial frequencies. Spatial frequency discrimination was evaluated in 17 medicated male patients with schizophrenia and 19 male control subjects. Subjects were required to discriminate whether pairs of high contrast, sinusoidally modulated gratings were the same or different in spatial frequency....

متن کامل

Overlapping and distinct brain regions involved in estimating the spatial position of numerical and non-numerical magnitudes: an fMRI study.

How are numerical and non-numerical magnitudes processed in the brain? Brain imaging research, primarily using comparison paradigms (i.e. judging which of two magnitudes is larger), has provided strong evidence demonstrating that the intraparietal sulcus (IPS) is a key region for processing both numerical (e.g. Arabic numerals, arrays of dots) and non-numerical magnitudes (e.g. height, brightne...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Experimental Brain Research

سال: 2000

ISSN: 0014-4819,1432-1106

DOI: 10.1007/s002210000385