intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/lecture-25.pdf ·...

18

Click here to load reader

Upload: phamnguyet

Post on 04-Aug-2018

212 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Intentionality

John Searle

1 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 2: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

What is Intentionality?– Feature of consciousness/ property of

consciousness

– Directedness/ aboutness/ of-ness

– Belief, Desire, intention, etc.

2 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 3: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Intentionality & Experience

– Rohan desires to have a high profile job– Rohan believes that high profile job are

available in the market and he intends to work hard.

– Rohan’s desire will be fulfilled iff he works hard and secures good grade in the final exam.

3 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 4: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

II Directedness– Teacher says that – Rohan is doing well in the calss– Rohan is happy about his performance in the

class and exam.

– Rohan gets good grade and the high profiled job.

4 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 5: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

III. unintentional states– Rohan says that he is feeling sad. – Rohan does not know why this sadness.– Is Rohan dipressed?– Is he anxious of getting a well-paid job?

– Evidence of Undirected mental states

5 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 6: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Thought and Action– Intending and intention are just one form of

intentionality (1983: 3)– Intending is an intentional act

– Doing (drinking/ writing) – Desiring or expecting (mental act)

6 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 7: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Intentionality and Representation – Intentional state (directed) object/ SAF– Speech act (represent) object/ SAF in the

world

– Intentional states are representational states

– Is intentionality necessarily linguistic?

7 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 8: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Intentional expression– Our bay daughter often cries for food– Ladoo my friend’s pet keeps waiting till my

friend arrives

– Language/ meaning is derived from intentionality not conversely.

8 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 9: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Speech as expression – Speech act: Illocutionary force– F(P)– Representative content → Direction of Fit– Psychological Mode→ Condition of

Satisfaction– Pm(Rc)

9 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 10: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Direction of fit– Assertives: R

RCP is there in the class.– i) Mind→ to →the world – Ii) World→ to→ the mind

10 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 11: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Condition of satisfaction– Illocutionary act and intentional sincerity– Internal – Saying and Meaning must go together

11 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 12: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Concept of Representation – Cognitive Science and AI

– “I am most emphatically not saying that a belief is a kind of picture, not am I endorsing Tractatus account of meaning nor I am saying that belief re-presents something.” (1983: 9)

12 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 13: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Searle on Representions– Not syntactical– Syntax will be causally determined – Syntax in the computational process is

observer relative

– For Searle, MR are related to feeling, experience, understanding, etc.

13 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 14: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

Content – Content is revealed in different modes of

intentionality working together.– Perception: seeing, experiencing,

believing, hoping, ….

– Understanding and imagination are higher order consciousness.

14 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 15: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

15 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 16: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

16 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 17: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

17 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay

Page 18: Intentionality - nptel.ac.innptel.ac.in/courses/109101004/downloads/Lecture-25.pdf · Intentionality John Searle Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT

18 Prof. Ranjan K Panda, Department of Humanities & Social Science, IIT Bombay