More dexterity more space in the motor cortex Eg hands will have more than feet

More dexterity more space in the motor cortex eg

This preview shows page 43 - 55 out of 65 pages.

More dexterity = more space in the motor cortex E.g. hands will have more than feet Mirror neurons Activate when you perform a bx and when you see someone else performing the same behavior
Image of page 43
Frontal Lobe Prefrontal Cortex Front of frontal lobes Complex bx Damage = change in personality, emotion, sense of self, reasoning, planning, impulsivity Remember Phineas Gage? Increased risk for drug addiction -> more damage Broca’s area Language area related to grammar and pronunciation Broca’s Aphasia- expressive aphasia Loss of the ability to produce language (spoken or written). Patient have insight to their problem and are frustrated.
Image of page 44
Broca’s aphasia—Frontal Lobe
Image of page 45
Temporal Lobe Primary Auditory Cortex Chief auditory receptive area Contains Hippocampus Where long term memory is formed Deals with high-level visual processing (faces & scenes) Damage = motion blindness (see stationary objects but can’t perceive motion) Wernicke’s Area Language area related to language comprehension Wernicke’s Aphasia- receptive aphasia Inability to understand language (written or spoken form) They can not use correct words to express thoughts, they think they know what they are saying but a bunch of random words come out.Patient is unaware of his problem.
Image of page 46
Wernicke’s Aphasia – Temporal Lobe
Image of page 47
Image of page 48
Parietal Lobe Primary Somatosensory Cortex Main area for receiving body sensations (temperature, pressure) Integrates info from several senses Processes spatial orientation, some parts of speech, visual perception, and pain and touch sensations Damage = disruption in goal-directed movement Like the motor cortex, space in the cortex is divided by how sensitive the touch is in each area Lips occupy a large area because of greater sensitivity in comparison to back and trunk
Image of page 49
Image of page 50
Occipital Lobe Visual Cortex Primary visual area, receives input from eyes Deals with visual processing (like frontal lobe) Part of the brain where dreams originate Cortical Blindness Loss of vision due to damage of the occipital lobel Eye is healthy, pupils dilate as a reflex Visual Agnosia Inability to identify seen objects Can see it, draw it, describe it, can’t name it ….until they touch it Facial Agnosia Inability to perceive familiar faces ….until person speaks
Image of page 51
The Lobes: A Summary Frontal “the big one” Motor Cortex Prefrontal Cortex (higher mental abilities) Broca’s Area Parietal Somatosensory Cortex Occipital Visual Cortex Temporal Auditory Cortex Hippocampus = memory Higher visual processes Wernicke’s Area
Image of page 52
Subcortex Brain structures below cerebral cortex Control basic life processes (breathing, heartbeat, etc.) Needed for survival Can be divided into the: Parts of the forebrain (limbic system) Midbrain Hindbrain (brain stem)
Image of page 53
The Limbic System (still in the forebrain) One of the first areas of the forebrain to develop Major role in producing emotion and motivated behavior Areas related to seeking pleasure and avoiding pain Where “pleasure/reward pathways” are found Overlap with areas controlling thirst, sex, hunger Commonly abused drugs (e.g. cocaine, meth, heroine,
Image of page 54
Image of page 55

You've reached the end of your free preview.

Want to read all 65 pages?

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes