Visual Perception and Visual Imagery Essay

The human brain is capable of perceiving and interpreting information or stimuli received through the sense organs (i.e., eyes, ears, nose, mouth, and skin) (Weiten, 1998). This ability to perceive and interpret stimulus allows the human being to make meaningful sense of the world and environment around them. However, even as the human being is able to perceive and interpret stimuli information through all sense organs, stimuli is most often or primarily interpreted using the visual (eyes) and auditory (ears) sense organs (Anderson, 2009). However, for the purpose of this paper, the visual information process will be examined.

Mental Imagery plays a role in our lives, it helps us plan for the future and make decisions. Although there are some people who never experience mental imagery. There are many

Many times, we don't realize when see something with our eyes that our brain stores that information away... rather we were aware of what we saw or not. Often our brain stores and processes that imagery in a subconscious format after the fact. This can have some interesting spiritual implications.

(1) The first question is dealing with the causal or functional role of phenomenal qualities: Under the assumption that seeing is based on cortical information-processing, the question arises, whether the phenomenal qualities of visual perceptions have a function with regard to this processing, in the sense that the intentional content of visual perceptions depends not only on their intentional, but also on their phenomenal qualities. Is it true, as among other authors Frank Jackson and Steven Pinker claim, that phenomenal qualities are only epiphenomena, not having any function for information-processing? (1)

Unit 8 Answer: Before answering this question, I will first define conscious awareness and neural circuit; conscious awareness is known as the “individual awareness of your unique thoughts, memories, feelings, sensations and environment” (Cherry, n.d.) while neural circuits are neural ensembles that process specific kinds of information such as visual or sensiorimotor input (Purves, 2001). As we have learned in previous chapters, neural mechanisms of conscious visual perception (the ventral stream) are not necessarily the same as those that mediate the visual control of behaviour (the dorsal stream). There are typically two hypotheses of how neural processing occurs consciously and unconsciously: response-chunking hypothesis and shifting control

Powell (1986) conducted a study in which individuals viewed a photo or slide. Individuals were required to scan images and decide on an image for the entire display (Powell, 1986). Objects were pointed to, and subjects were asked to identify its location (Powell, 1986). The subject was asked to close his or her eyes and were shown another image. The subjects were to decide if the object was in the correct position (Powell, 1986). The subjects would hear one of the objects and was required to focus on the object while keeping the entire image in his or her mind (Powell, 1986). When the next object was identified, the subjects were to move from the first object to the second watching a black dot moving in a straight line (Powell, 1986).

Another visual condition that has intrigued the neurologist for over a century is a condition called visual neglect. After having a stroke in her parietal lobes in her brain, Peggy Palmer had normal vision, which should allow her to draw a copy an image without difficulty. When Peggy was asked to draw a copy of a daisy, they found that she only would draw the right half of the daisies image. She didn’t realize this until the it was told to her, then she could see that she in fact was missing the entire left half of the daisy. Dr. Ramachandran explains that as we see an object, the visual input will split into two different pathways. One is the “how?” and the other is the “what?”. The “how” deals with the area of the brain that mainly controls

The way a human eye and brain works together to produce visual data understandable to the

Holmes and Collins suggested that to maximise functional equivalence, the physical nature of imagery should closely mirror performance outcomes,

The phenomenon of blindsight has far reaching implications regarding consciousness, awareness and the "I" function. These studies demonstrate that receiving and interpreting visual inputs is independent of our awareness of that input. Does this imply that there is a separate mechanism of "consciousness" which can be disengaged from our senses? Marcel proposes that this loss of visual consciousness results from the

The question posed needs you look at the two different disciplines these the cognitive psychologist perceptive, and the other be biological psychologist. Both disciplines study the brain. It soon becomes apparent that both disciplines cross, join and merge at some point. Both use brain imagining techniques to study the brain and both research into what section of the brain is responsible for actions and behaviours. This essay is based on the loose discussion of what these techniques can tell researchers about the brain and memory. How brain imagery techniques are used to provide evidence on what area and part of that area of the brain are involved in the memory process. From both cognitive and biological perceptive.

3. Barry, A. M. S. 1997. Visual intelligence: Perception, image, and manipulation in visual communication, Albany: State University of New York Press.

Perception is defined as how you look at others and the world around you. Being able to select, organize and intercept information starts the perceptual process. Perception affects the way people communicate with others. An individual’s pattern of thinking can affect their perception of others. Most people communicate best with people of similar cultures.