cog quiz 3

Sensation

involves bringing in information through the five senses

apperceptive agnosia

is a failure in recognition that is due to a failure of perception.

perception

is how our brains make sense of that information.

Dorsal streams of visual processing (what/where

(or, "where pathway") is involved with processing the object's spatial location relative to the viewer and with speech repetition. The dorsal stream is proposed to be involved in the guidance of actions and recognizing where objects are in space. Also known as the parietal stream, the "where" stream, or the "how" stream, this pathway stretches from the primary visual cortex (V1) in the occipital lobe forward into the parietal lobe. It is interconnected with the parallel ventral stream (the "what" stream) which runs downward from V1 into the temporal lobe.

associative agnosia

where perception occurs but recognition still does not occur

bottom-up processing

which is the process of the senses providing information about the environment up to the brain.

ventral streams of visual processing (what/where)

The ventral stream (also known as the "what pathway") is involved with object and visual identification and recognition Damage to the ventral stream can cause inability to recognize faces or interpret facial expression The ventral stream is associated with object recognition and form representation. Also described as the "what" stream, it has strong connections to the medial temporal lobe (which stores long-term memories), the limbic system (which controls emotions), and the dorsal stream (which deals with object locations and motion).

object agnosia

Visual object agnosia is an impairment in recognition of visually presented objects. It is not due to a deficit in vision (acuity, visual field, and scanning), language, memory, or low intellect. Visual object agnosia is associated with a breakdown of object-selective responses in the lateral occipital cortex.

prosopagnosia

an inability to recognize the faces of familiar people, typically as a result of damage to the brain. LIke Marky Bark

Top-down processing

refers to how our brains make use of information that has already been brought into the brain by one or more of the sensory systems. Top-down processing is a cognitive process that initiates with our thoughts, which flow down to lower-level functions, such as the senses.