Visual Search Bottom-Up or Top-Down

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

Visual search: bottom-up or top-down?

The aim of the experiments in this paper was to explore the relationship between top-down and bottom-up processes in visual search. Employing behavioral techniques, we first consider the possible role of the magnocellular visual pathway in visual search, and find that visual search does not necessarily depend on processing by this visual sub-system. We next use functional imaging (positron emis...

متن کامل

Efficient visual search without top-down or bottom-up guidance.

Two types of mechanisms have dominated theoretical accounts of efficient visual search. The first are bottom-up processes related to the characteristics of retinotopic feature maps. The second are top-down mechanisms related to feature selection. To expose the potential involvement of other mechanisms, we introduce a new search paradigm whereby a target is defined only in a context-dependent ma...

متن کامل

Bottom-up and top-down control in visual search.

Previous research suggests that the allocation of attention is largely controlled either in a stimulus-driven or in a goal-driven manner. To date, few studies have systematically manipulated variables affecting stimulus-driven and goal-driven selection independently in order to investigate how both manners of control interrelate and affect performance in visual search. In the present study obse...

متن کامل

Visual Attention: Bottom-Up Versus Top-Down

Visual attention is attracted by salient stimuli that 'pop out' from their surroundings. Attention can also be voluntarily directed to objects of current importance to the observer. What happens in the brain when these two processes interact?

متن کامل

Top-Down, Bottom-Up, or Both

Operations strategy is formed via complex processes that transpire in multiple directions at multiple organizational levels. While most previous studies focus on the “macro-level” process of strategy formation from the dominant top-down perspective, this study investigates the “micro-level” process of strategy formation that governs interactions among competitive priorities, objectives, and act...

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: Frontiers in Bioscience

سال: 2000

ISSN: 1093-9946,1093-4715

DOI: 10.2741/a503