modality intensity duration location four attributes of a stimulus
... FIGURE 4 Center/surround organization of receptive fields is common in sensory systems. In this organization, a stimulus in the center of the receptive field produces one effect, usually excitation, whereas a stimulus in the surround area has the opposite effect, usually inhibition. (A) In the soma ...
... FIGURE 4 Center/surround organization of receptive fields is common in sensory systems. In this organization, a stimulus in the center of the receptive field produces one effect, usually excitation, whereas a stimulus in the surround area has the opposite effect, usually inhibition. (A) In the soma ...
Biology 3201
... Membrane is 50 times more permeable to K+ ions causing them to “leak” out. This causes outside of membrane to have an abundance of + charges compared to inside. The inside of the membrane is negative compared to the outside. This is helped by the (-) proteins ...
... Membrane is 50 times more permeable to K+ ions causing them to “leak” out. This causes outside of membrane to have an abundance of + charges compared to inside. The inside of the membrane is negative compared to the outside. This is helped by the (-) proteins ...
Untitled - inetTeacher
... • Messages are sent from the axon terminals of one neuron to the dendrites of other neurons • In order for this process to happen, the message must cross a synapse. • A synapse is a junction between the axon terminals of one neuron and the dendrites of another. • Messages travel in only one directio ...
... • Messages are sent from the axon terminals of one neuron to the dendrites of other neurons • In order for this process to happen, the message must cross a synapse. • A synapse is a junction between the axon terminals of one neuron and the dendrites of another. • Messages travel in only one directio ...
LEVELS OF ORGANIZATION
... The ways in which cells communicate with each other are highly complex and are included in an area of scientific discovery that is rapidly growing; however, they essentially boil down to two basic signal types: electrical signals (changing the MP), or chemical signals that bind to targets on cells. ...
... The ways in which cells communicate with each other are highly complex and are included in an area of scientific discovery that is rapidly growing; however, they essentially boil down to two basic signal types: electrical signals (changing the MP), or chemical signals that bind to targets on cells. ...
General Psychology
... synaptic transmission after high frequency stimulation of the presynaptic neuron. Long-term potentiation LTP remains stable for many weeks ...
... synaptic transmission after high frequency stimulation of the presynaptic neuron. Long-term potentiation LTP remains stable for many weeks ...
The Neuron - Austin Community College
... Can you think of an advantage to having convergent and divergent circuits? Neurotransmitters - Each synapse uses a specific neurotransmitter - Each postsynaptic cell may respond to many different neurotransmitters Common neurotransmitters: Acetylcholine - most common, used in all neuromuscular junct ...
... Can you think of an advantage to having convergent and divergent circuits? Neurotransmitters - Each synapse uses a specific neurotransmitter - Each postsynaptic cell may respond to many different neurotransmitters Common neurotransmitters: Acetylcholine - most common, used in all neuromuscular junct ...
Slide ()
... Responses of neurons in the primary visual cortex of a monkey to visual stimuli. (Adapted, with permission, from Hubel and Wiesel 1977.) A. A diagonal bar of light is moved leftward across the visual field, traversing the receptive fields of a binocularly responsive cell in area 17 of visual cortex. ...
... Responses of neurons in the primary visual cortex of a monkey to visual stimuli. (Adapted, with permission, from Hubel and Wiesel 1977.) A. A diagonal bar of light is moved leftward across the visual field, traversing the receptive fields of a binocularly responsive cell in area 17 of visual cortex. ...
The Nervous System
... more oxygen can enter. Increase bp, stimulate adrenal glands to secrete epinephrine (adrenaline) , and inhibit intestinal contractions slowing digestion. ...
... more oxygen can enter. Increase bp, stimulate adrenal glands to secrete epinephrine (adrenaline) , and inhibit intestinal contractions slowing digestion. ...
Reflex Arc - WordPress.com
... Reflexes are automatic - don’t have to think about them Message doesn’t have to go to brain for response to occur, sent directly to spinal cord Since there is no processing, reactions can be very quick ...
... Reflexes are automatic - don’t have to think about them Message doesn’t have to go to brain for response to occur, sent directly to spinal cord Since there is no processing, reactions can be very quick ...
Neuron Teacher Key 5-17-16
... 2. What are two characteristics that distinguish nerve cells from other cells? Nerve cells are unique in that they transmit signals and utilize chemical communication. _______________________________________________________________________ 3. What is the difference between a nerve cell and a nerve? ...
... 2. What are two characteristics that distinguish nerve cells from other cells? Nerve cells are unique in that they transmit signals and utilize chemical communication. _______________________________________________________________________ 3. What is the difference between a nerve cell and a nerve? ...
Document
... – A synapse is a region where neurons nearly touch – Small gap between neurons is the synaptic cleft – Transmission across a synapse is carried out by neurotransmitters • Sudden rise in calcium in the axon terminal of one neuron • Calcium stimulates synaptic vesicles to merge with the presynaptic me ...
... – A synapse is a region where neurons nearly touch – Small gap between neurons is the synaptic cleft – Transmission across a synapse is carried out by neurotransmitters • Sudden rise in calcium in the axon terminal of one neuron • Calcium stimulates synaptic vesicles to merge with the presynaptic me ...
ADAM Nervous System Ion Channels Use this program only if you
... Use this program only if you need to review the differences between active and passive cell channels and voltage-gated and chemically-gated channels. Membrane Potential 1. What causes the outside surface of the cell membrane to be more positive? 2. The resting membrane potential in a neuron results ...
... Use this program only if you need to review the differences between active and passive cell channels and voltage-gated and chemically-gated channels. Membrane Potential 1. What causes the outside surface of the cell membrane to be more positive? 2. The resting membrane potential in a neuron results ...
Ch. 3 S. 1
... hand, yawns, or thinks about a friend, neurotransmitters are involved. Some diseases and psychological disorders may also be caused by the presence of too much or too little of various neurotransmitters. Researchers have identified dozens of neurotransmitters and their functions. Examples: noradrena ...
... hand, yawns, or thinks about a friend, neurotransmitters are involved. Some diseases and psychological disorders may also be caused by the presence of too much or too little of various neurotransmitters. Researchers have identified dozens of neurotransmitters and their functions. Examples: noradrena ...
36.1: The Nervous System
... Analyze how nerve impulses travel within the nervous system. Interpret the functions of the major parts of the nervous system. Compare voluntary responses and involuntary ...
... Analyze how nerve impulses travel within the nervous system. Interpret the functions of the major parts of the nervous system. Compare voluntary responses and involuntary ...
Neuron-target interaction 1. Synapse formation between presynaptic
... Neuron-target interaction 1. Synapse formation between presynaptic and postsynaptic cells synaptogenesis in neuromuscular junction (NMJ) Central synapses form in a similar manner as in NMJ. synapse elimination- A large number of synapses eliminated. Proposed model: Active axon triggers the generatio ...
... Neuron-target interaction 1. Synapse formation between presynaptic and postsynaptic cells synaptogenesis in neuromuscular junction (NMJ) Central synapses form in a similar manner as in NMJ. synapse elimination- A large number of synapses eliminated. Proposed model: Active axon triggers the generatio ...
Nervous Systems
... • Action potentials do not travel between different neurons • Yet, it is still necessary to send the “signal” from one neuron to the next • To do this, there has to be a way to send a signal across the space that exists between one neuron and another (synaptic cleft or gap ...
... • Action potentials do not travel between different neurons • Yet, it is still necessary to send the “signal” from one neuron to the next • To do this, there has to be a way to send a signal across the space that exists between one neuron and another (synaptic cleft or gap ...
Characterization of the Bed Nucleus of the Stria Terminalis
... The bed nucleus of the stria terminalis (BNST) is part of the extended amygdala which receives heavy projections from the basolateral amygdala and other areas, and projects to hypothalamic and brainstem target areas that mediate autonomic and behavioral responses to aversive or threatening stimuli. ...
... The bed nucleus of the stria terminalis (BNST) is part of the extended amygdala which receives heavy projections from the basolateral amygdala and other areas, and projects to hypothalamic and brainstem target areas that mediate autonomic and behavioral responses to aversive or threatening stimuli. ...
Sushi and the science of synapses
... them in the form of short protrusions called dendritic spines. The nerves are the brain’s interface with its environment. When something “out there” touches an arm, for instance, “ion channels” in sensory nerves in the skin at that point are activated. This causes a change in the electrical potentia ...
... them in the form of short protrusions called dendritic spines. The nerves are the brain’s interface with its environment. When something “out there” touches an arm, for instance, “ion channels” in sensory nerves in the skin at that point are activated. This causes a change in the electrical potentia ...
Developer Notes
... relatively large and do not pass through cell membranes easily. The positive ions are much smaller and easier to move! Since there is a separation of charges, there is a difference in electric potential (a voltage!). Think about it! Work has to be done to separate the charges, thus increasing potent ...
... relatively large and do not pass through cell membranes easily. The positive ions are much smaller and easier to move! Since there is a separation of charges, there is a difference in electric potential (a voltage!). Think about it! Work has to be done to separate the charges, thus increasing potent ...
Biology and Behavior
... Communication between Neurons (chemical) • Axon terminals release neurotransmitter • Neurotransmitter enters synaptic gap • Neurotransmitter binds to receptor site that it fits • Reuptake: surplus neurotransmitter reabsorbed by sending neuron ...
... Communication between Neurons (chemical) • Axon terminals release neurotransmitter • Neurotransmitter enters synaptic gap • Neurotransmitter binds to receptor site that it fits • Reuptake: surplus neurotransmitter reabsorbed by sending neuron ...
Chapter 2
... 22. Molly is sitting on the bank of a stream when she feels something slippery on her foot. This information is most likely processed by Molly’s (p 42). 23. Molly is sitting on the bank of a stream when she feels something slippery on her foot. She looks down and sees a salamander crawling over her ...
... 22. Molly is sitting on the bank of a stream when she feels something slippery on her foot. This information is most likely processed by Molly’s (p 42). 23. Molly is sitting on the bank of a stream when she feels something slippery on her foot. She looks down and sees a salamander crawling over her ...
Nervous System - University of Nevada, Las Vegas
... – Motor (efferent) — carry impulses away from the CNS – Interneurons (association neurons) — shuttle signals through CNS pathways ...
... – Motor (efferent) — carry impulses away from the CNS – Interneurons (association neurons) — shuttle signals through CNS pathways ...
action potential
... another cell is called a postsynaptic cell. If the postsynaptic cell is another neuron then the synapse is normally made with a dendrite or the cell body of a postsynaptic neuron. In the most common synapse there is a tiny space, called the synaptic cleft, this separates the axon terminals from the ...
... another cell is called a postsynaptic cell. If the postsynaptic cell is another neuron then the synapse is normally made with a dendrite or the cell body of a postsynaptic neuron. In the most common synapse there is a tiny space, called the synaptic cleft, this separates the axon terminals from the ...