What is the dual stream model for speech processing?
The dual-stream model of speech processing suggests that there are two possible sources of predictive coding in speech perception: the motor speech system and the lexical-conceptual system.
What is dual stream conceptualization of brain processing?
The Dual Stream model of speech/language processing holds that there are two functionally distinct computational/neural networks that process speech/language information, one that interfaces sensory/phonological networks with conceptual-semantic systems, and one that interfaces sensory/phonological networks with motor- …
What is the main difference between Broca’s and Wernicke’s aphasia?
People with Wernicke’s aphasia are often unaware of their spoken mistakes. Another hallmark of this type of aphasia is difficulty understanding speech. The most common type of nonfluent aphasia is Broca’s aphasia (see figure). People with Broca’s aphasia have damage that primarily affects the frontal lobe of the brain.
What is the relationship between Wernicke’s area and Broca’s area?
Wernicke’s area is a critical language area in the posterior superior temporal lobe connects to Broca’s area via a neural pathway. Wernicke’s area is primarily involved in the comprehension. Historically, this area has been associated with language processing, whether it is written or spoken.
What are the four 4 types of attention?
There are four different types of attention: selective, or a focus on one thing at a time; divided, or a focus on two events at once; sustained, or a focus for a long period of time; and executive, or a focus on completing steps to achieve a goal.
What is an example of alternating attention?
You may use alternating attention when reading a recipe (learning) and then performing the tasks of recipe (doing). It could also be alternating between unrelated tasks such as cooking while helping your child with her homework.
What is Broca and Wernicke area?
Broca’s and Wernicke’s areas are cortical areas specialized for production and comprehension, respectively, of human language. Broca’s area is found in the left inferior frontal gyrus and Wernicke’s area is located in the left posterior superior temporal gyrus.
What is the dual stream concept in psychology?
The dual stream concept, functionally speaking, holds of sign language as well. It holds of all of sensory processing for that matter (see Milner and Goodale’s work in the visual domain).
Is there a large-scale anatomical division between motor and lexical speech processing?
Several dual route models of human speech processing have been proposed suggesting a large-scale anatomical division between cortical regions that support motor-phonological aspects vs. lexical-semantic aspects of speech processing.
Is there a division between the two processing routes of speech processing?
As such, our findings show a division between two processing routes that underlie human speech processing and provide an empirical foundation for studying potential computational differences that distinguish between the two routes. Keywords: aphasia; speech comprehension; speech processing; speech production; voxel-based lesion-symptom mapping.
Does the sensory system model make sense for speech/language processing?
In other words, not only does the model make sense for speech/language processing, it appears to be a “general principle of sensory system organization” (Hickok & Poeppel, 2007, p. 401) and it has stood the test of time. So, all that remains is to work out the details of these networks.