Related Experiment Video
Updated: Jan 22, 2026
07:18
Author Spotlight: Deciphering the Cognitive and Neural Mechanisms of Gesture in Communication
Published on: January 26, 2024
1.3K
Speech-accompanying gestures are not processed by the language-processing mechanisms.
Olessia Jouravlev1, David Zheng2, Zuzanna Balewski3
1Massachusetts Institute of Technology, Cambridge, MA, 02139, USA; Carleton University, Ottawa, ON K1S 5B6, Canada.
Neuropsychologia
|July 6, 2019
Summary
Brain regions for language do not process speech-accompanying gestures without speech. This suggests language regions are selectively activated by linguistic input, not by non-verbal communication signals like gestures.
Area of Science:
- Neuroscience
- Cognitive Science
- Linguistics
Background:
- Speech-accompanying gestures are a key communication channel.
- Previous research suggested gesture processing activates language comprehension brain regions.
- Existing studies had limitations, including reverse inference and group analyses.
Purpose of the Study:
- To investigate whether language brain regions respond to co-speech gestures.
- To overcome limitations of prior studies by using functional magnetic resonance imaging (fMRI) and individual participant analyses.
- To examine a broad range of spontaneously generated co-speech gestures.
Main Methods:
- Used fMRI to examine brain responses to gesture processing.
- Defined language regions functionally in individual participants.
- Compared brain responses to silent gestures versus grooming movements.
Main Results:
- Language regions responded robustly when speech was present, regardless of gestures.
- Language regions showed minimal response to silent videos of gestures or grooming movements.
- Brain regions outside the language network differentiated between gestures and grooming movements.
Conclusions:
- Language-processing regions do not respond to co-speech gestures in the absence of speech.
- These findings suggest language regions are selectively driven by linguistic input.
- Co-speech gestures are processed in brain regions distinct from language comprehension areas.
Keywords:
Co-speech gesturesCommunicationFunctional specificityLanguage networkMultiple demand (MD) networkMore Related Videos
Related Concept Videos
01:29Processes of Self-Presentation
212
Effective self-presentation is a central component of social interaction and identity construction. It relies on the dynamic processes of defining the situation and engaging in self-disclosure. These mechanisms help individuals navigate social context expectations and manage how others perceive them, fostering mutual understanding and relationship development.Defining the SituationSocial situations are shaped by collectively understood frames—a set of widely understood rules or...
212
01:30Information Processing Approach
538
The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is...
538
01:20Parallel Processing
651
The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...
651
01:12Precipitation Processes
5.8K
The experimental conditions in a gravimetric analysis should be optimized to maximize the particle size and purity of the obtained precipitate. Ideally, the concentration of the precipitating reagent should be low with effective stirring to maintain low relative supersaturation for the growth of large crystals. In homogeneous precipitation, the precipitant is slowly generated by a chemical reaction in the solution to avoid local reagent excesses. For example, urea decomposes gradually to...
5.8K
01:21Isothermal Processes
4.9K
A thermodynamic process that occurs at constant temperature is called an isothermal process. Heat slowly flows into the system or out of the system to maintain thermal equilibrium. Processes involving phase changes like water evaporation into steam or freezing water into ice at a constant temperature are examples of Isothermal Processes.
An ideal gas can also undergo isothermal expansion or compression.
For example, consider 1 mole of an ideal gas inside an isolated cylinder at initial volume V...
An ideal gas can also undergo isothermal expansion or compression.
For example, consider 1 mole of an ideal gas inside an isolated cylinder at initial volume V...
4.9K
01:20Work Done in an Adiabatic Process
4.2K
Consider the adiabatic compression of an ideal gas in the cylinder of an automobile diesel engine. The gasoline vapor is injected into the cylinder of an automobile engine when the piston is in its expanded position. The temperature, pressure, and volume of the resulting gas-air mixture are 20 °C, 1.00 x 105 N/m2, and 240 cm3 , respectively. The mixture is then compressed adiabatically to a volume of 40 cm3. Note that, in the actual operation of an automobile engine, the compression is not...
4.2K