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Related Concept Videos

Communication01:03

Communication

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Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
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Communication01:28

Communication

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Sharing information, concepts, and emotions to foster mutual understanding is communication. The sender, recipient, and transaction must be considered in this manner. The sender is the person who shares the message, the recipient is the person who receives and understands the message, and the transaction is the method used to deliver the message and the variables that affect the communication's context and surroundings. The nurse-client connection is built on therapeutic communication.
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Neuronal Communication01:28

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Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
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Therapeutic Communication01:30

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Communication is a lifelong learning process. Through therapeutic communication, nurses can collect relevant assessment data, provide education and counseling, and interact during nursing interventions. Sending and receiving messages occur through verbal and nonverbal communication techniques and can happen separately or simultaneously.
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Barriers to Effective Communication II01:21

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The barriers to effective communication also include cultural barriers, semantic barriers, gender barriers, and time constraints.
Cultural barriers:
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Semantic barriers:
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Channels of Non-Verbal Communication01:28

Channels of Non-Verbal Communication

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Non-verbal communication plays a critical role in human interaction, influencing how individuals perceive emotions and psychological states. It operates through four primary channels: facial expressions, eye contact, body language, and touch. These non-verbal cues help convey meaning beyond spoken language and are often culturally influenced.Facial Expressions and Emotional RecognitionFacial expressions are among the most powerful and universal forms of non-verbal communication. Research has...
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Automated Interactive Video Playback for Studies of Animal Communication
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Cortical Areas Interact through a Communication Subspace.

João D Semedo1, Amin Zandvakili2, Christian K Machens3

  • 1Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, PA, USA; Champalimaud Research, Champalimaud Centre for the Unknown, Lisbon, Portugal; Department of Electrical and Computer Engineering, Instituto Superior Técnico, Lisbon, Portugal.

Neuron
|February 17, 2019
PubMed
Summary
This summary is machine-generated.

Brain area V2 selectively communicates with primary visual cortex (V1) through a specific "communication subspace." This finding sheds light on how neural populations route information across distinct brain regions.

Keywords:
area V2corticocorticaldimensionality reductioninter-areal communicationmacaqueneural populationneural variabilityprimary visual cortexvisionvisual cortex

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Area of Science:

  • Neuroscience
  • Computational Neuroscience
  • Systems Neuroscience

Background:

  • Brain functions rely on interactions between multiple distinct neural areas.
  • Understanding communication between neuronal populations in interconnected brain regions is crucial but remains limited.
  • Visual processing in primates exemplifies complex signal relay across cortical areas.

Purpose of the Study:

  • To investigate the relationship between population responses in primary visual cortex (V1) and simultaneously recorded responses in area V2.
  • To elucidate the mechanisms of trial-to-trial fluctuations in neural communication between V1 and V2.

Main Methods:

  • Simultaneous recording of population neural activity in V1 and V2.
  • Application of dimensionality reduction techniques to analyze neural population dynamics.
  • Characterization of communication patterns between distinct cortical areas.

Main Results:

  • V1-V2 interactions are mediated by a distinct 'communication subspace'.
  • V2 population activity fluctuations correlate with a specific subset of V1 population activity patterns.
  • These V1 patterns are distinct from the dominant patterns of shared fluctuations within V1, indicating selective communication.

Conclusions:

  • A communication subspace facilitates selective routing of neural activity between V1 and V2.
  • This subspace represents a population-level mechanism for inter-areal communication.
  • The findings suggest a general principle for how information is transmitted across different brain areas.