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Test Yourself 2.1 - Cognitive Psychology: Goldstein

memorize.ai (lvl 286)

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Section 1

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How is neural representation for memory different from representation for perception? How is it similar?

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6 years ago

Date created

Mar 1, 2020

Cards (7)

Section 1

(7 cards)

How is neural representation for memory different from representation for perception? How is it similar?

Front

The neural firing of neurons associated with experiencing a perception is associated with what is happening within the moment, whereas memory in remembering. They believe that it occurs from storing certain nerve patterns within the brain that fire when we perceive a memory. They both use the same electrical impulces but one is past and the other is present.

Back

Describe the idea of levels of analysis. How does this relate to answering the question "Why study cognitive neuroscience?"

Front

L of A; Multiple ways to study a single topic or idea. There is so much more that goes into each cognitive action that we, as humans, take. Simple tasks involve not just the task but the thought, electrical and chemical impulses, memory, recollection, ect. Cognitive neuroscience looks at a single part of the multiple ways we could look at an action, behavior, or thought.

Back

How has the question of how different perceptions can be represented by neurons been answered? Consider both research involving recording from a single neurons and ideas about sensory coding.

Front

Different perceptions have been explained by the particular selection of each neuron firing and hierarchical processing. Single neurons may respond to only particular stimuli. However sometimes it take large or small groups of neurons to fire an action potential into usable information within the brain

Back

How are action potentials recorded from a neuron? What do these signals look like, and what is the relation between action potentials and stimulus intensity?

Front

The neurotransmitters send the message from neuron to neuron. These signals the release the neurotransmitter are called action potentials. Which are electrical impulses that are roughly +40mv. This is a continuous charge down the axon. For a more intense action potential you were have a greater occurrence of them not a higher voltage.

Back

How did early brain researchers describe the brain in terms of a nerve net? How does the idea of individual neurons differ from the idea of a nerve net?

Front

They believed a nerve net to be contiguous pathways. It seemed like a highway, no stops, or subsections. Cajal developed the neuron doctrine and provided the information the "nerve net" was not continuous but made up of individual neurons.

Back

Describe the nature of a neuron. Describe the synapse and neural circuits.

Front

A neuron is composed of the dendrites (receiving), the cell body (soma) (keeps us basic cell function), and the axon (outgoing). Through action potentials the neuron sends information down the axon to the terminal button, where neurotransmitters are let into the synaptic gap. The connections and messages sent between neurons creates neural circuits

Back

Describe the research that led Cajal to propose the neuron doctrine.

Front

It was in the different way that he stained the cells. They were able to stain the whole neuron seeing that the brain was not a continuous system. He used baby animals so the brain was less dense then that of an adult

Back