Navigation Links
Reading hidden intentions in the human brain

By imaging patterns of activity in the brain's prefrontal cortex as subjects concentrated on their choice of two future actions, researchers have been able to distinguish cortical activity patterns that correspond to the subjects' different plans. The findings, reported by a collaborative group led by John-Dylan Haynes of the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, Germany, appear in Current Biology online on February 8th.

Past research had indicated that activity in the area of the prefrontal cortex increases when humans engage in goal-related neural processing, but it has been unclear whether patterns of activity might encode an individual's current intention. The observed goal-related activity might also (or, alternatively) represent other processes, such as preparing for a motor response, accessing memories of past related responses, or bearing in mind the choice of responses available.

To address the question of whether intention might be reflected in prefrontal cortical activity, the researchers in the new work used functional magnetic resonance imaging (fMRI) to assess brain activity while subjects concentrated on their choice of intended mental action, but prior to execution of the action. Specifically, subjects were free to choose between adding or subtracting two numbers and were asked to hold in mind their intention until numbers were presented on a screen, along with a choice of outcomes (one of which was correct for the addition choice, one correct for the subtraction choice). Subjects then selected the correct answer according to their planned task, revealing their intended action.

The researchers found that during the delay between the subjects' choice of task and execution of the task, it was possible to decode from activities in two regions of the prefrontal cortex which of the two actions (addition or subtraction) individuals had chosen to pursue. Different patterns of activity were seen du ring actual execution of the task, showing that regionally distinct neural substrates were involved in task preparation and execution. Decoding of intentions was most robust when activity patterns in the medial prefrontal cortex were taken into account, consistent with the idea that this region of the brain participating in the reflection of an individual on his or her own mental state.


'"/>

Source:Cell Press


Related biology news :

1. Reading Shakespeare has dramatic effect on human brain
2. Finding hidden invaders in a Hawaiian rain forest
3. UCLA cancer researchers shake loose hidden biomarker
4. Measuring hidden parasites in falciparum malaria
5. Envisat and ERS-2 reveal hidden side of Hurricane Rita
6. Computer modeling reveals hidden conversations within cells
7. Viagras hidden help for wildlife
8. Clues to breast cancer hidden inside stem cells
9. Squid skin reveals hidden messages
10. UBC researchers reveal dwarf aquatic plants hidden ancestry
11. Novel technology detects human DNA mutations
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)... , May 16, 2017   Bridge Patient ... organizations, and MD EMR Systems , an ... partner for GE, have established a partnership to ... product and the GE Centricity™ products, including Centricity ... These new integrations will allow ...
(Date:4/19/2017)... April 19, 2017 The global ... landscape is marked by the presence of several large ... held by five major players - 3M Cogent, NEC ... accounted for nearly 61% of the global military biometric ... in the global military biometrics market boast global presence, ...
(Date:4/13/2017)... 13, 2017 UBM,s Advanced Design and Manufacturing ... feature emerging and evolving technology through its 3D Printing ... run alongside the expo portion of the event and ... demonstrations focused on trending topics within 3D printing and ... manufacturing event will take place June 13-15, 2017 at the ...
Breaking Biology News(10 mins):
(Date:5/23/2017)... Canada (PRWEB) , ... May 23, 2017 , ... ... Firmex FileSend, a cloud-based file transfer solution that makes it easy for organizations ... without having to worry about cumbersome FTP software or email file size limitations. ...
(Date:5/23/2017)... ... May 22, 2017 , ... NetDimensions has been ranked ... Research Globe™ for Corporate Learning, 2017. , Aragon Research defines Leaders as organizations ... effectively perform against those strategies. NetDimensions’ ranking as a Leader due to its ...
(Date:5/23/2017)... ... May 23, 2017 , ... Kathy Goin is ... Clinical Operations. She brings years of expertise in establishing and leading clinical operations ... as a licensed occupational therapist, through a variety of leadership roles in Clinical ...
(Date:5/22/2017)... ... May 22, 2017 , ... Stratevi, a boutique firm that partners ... Coast. It has opened an office in downtown Boston at 745 Atlantic Ave. ... more important to generate evidence on the value they provide, not just to patients, ...
Breaking Biology Technology: