n. 1. Karl S. Lashley ‘s hypothesis that large areas of cerebral cortex have similar potential to perform particular functions, including learning and other complex processes (e.g., maze navigation), so that intact cortical areas may take over functions of damaged or destroyed areas.
What is meant by equipotentiality?
Definition. Equipotentiality – a notion developed by Karl Spencer Lashley (1890–1958) positing that all areas of the brain are equally able to perform a task.
What is the behaviorist principle of equipotentiality?
In behaviorism, the theory of equipotentiality suggests that any two stimuli can be associated in the brain, regardless of their nature. It proposes that all forms of associative learning, both classical (Pavlovian) and operant (Skinnerian) involve the same underlying mechanisms.
What is equipotentiality language?
Hemispheric equipotentiality refers to a supposed equivalence of the two cerebral hemispheres for basic language capacity. … Equipotentiality has taken two different forms: one based on proposals about the anatomical features of the two hemispheres, the other on suppositions about language behavior.
What is mass action psychology?
The mass action hypothesis asserts that the entire cortex participates in every behavior. Thus, removal of any cortical tissue produces a behavioral change that is proportional to the amount of tissue removed.
What is localization of function in psychology?
the concept that specific parts of the cerebral cortex are relatively specialized for particular types of cognitive and behavioral processes. Also called cortical localization.
What is equipotentiality premise?
The premise of equipotentiality, which has been widely adhered to among learning theorists, states that the laws of learning should not vary with the use of particular stimuli, responses, or reinforcements.
What is chaining psychology?
Chaining is an instructional strategy grounded in applied behavior analysis (ABA) theory. Chaining is based on task analysis, in which individual steps are recognized as requirements for task mastery. Chaining breaks a task down into small steps and then teaches each step within the sequence by itself.
What did Lashley develop by purposely damaging the brain?
How did Lashley develop the equipotentiality hypothesis? He trained rats in the correct route through a maze, then deliberately damaged their brains and observed that this did not inhibit their progress through the maze.
Lenneberg (1967) argued that a birth the left and right hemispheres of the brain are equipotential. … In particular, hemispheric specialization takes place during the critical period, and during this time children possesses a degree of flexibility that is lost when the critical period is finished.
What is double dissociation in memory?
a research process for demonstrating the action of two separable psychological or biological systems, such as differentiating between types of memory or the function of brain areas. One experimental variable is found to affect one of the systems, whereas a second variable affects the other.
What is Engram Hypothesis?
An Engram is the hypothesized physical memory trace, either biophysical or biochemical, that that is produced when information is stored in the brain. The exact means, mechanism and location of this type of memory storage continues to be a subject of study and controversy. …