Often, after a brain injury, a person’s cognitive, or thinking, abilities change because of the changes the brain has undergone. Teens with a brain injury often have problems in three main areas:

Mental Power
  • Low energy level and problems with concentration
  • Low energy can interfere with Goal Setting
Cognitive Abilities
  • Loss of skills or knowledge in specific areas such as reading, writing, or language comprehension
  • Loss of skills and knowledge can delay educational goals, but Planning and Organization can help
Executive Functioning
  • Problems with the internal coach that helps with organizational skills, planning, self- monitoring, and awareness
  • May lead to problems with Self-Regulation of Behavior


Some abilities are simple and can quickly return after a brain injury; for example, knowing your birthday. Other skills require more complicated connections among different parts of the brain; these abilities come back more slowly. Some very complex skills, such as the quick decision-making needed to do competitive debate, may never recover completely after a brain injury.


More information on possible cognitive changes following brain injury:

Organization: It is common after a brain injury to have difficulty organizing behavior or thoughts. It may be hard to pay attention to what is going on around you, to plan what you need to do, and to follow through with plans that you make. Often, teens with a brain injury appear fine until they face new or complex tasks requiring good organization.

Attention: After a brain injury, teens often have difficulty screening out distracting sounds and focusing their attention on what they're doing. It may be hard to figure out what to focus on and what to ignore. Teens with a brain injury often have difficulty paying attention to boring or hard tasks, and have trouble switching between tasks or doing more than one thing at a time.

Memory: A brain injury often hurts the ability to remember new information. Teens may have trouble easily taking in, remembering, and using new information.

Perception: Perception involves the ability to sort, prioritize, and generalize information. Often, pieces of a puzzle may be understood, but putting them together is difficult. While you may still hear and see as well as before the injury, you may have trouble making sense of complex or poorly organized information.

Reasoning and Judgement: Reasoning, problem solving, and judgment affect your schoolwork, behavior, and social life. When reasoning is impaired, teens may make poor decisions and have trouble with real world problem solving.

Speech and Language Abilities: A brain injury can change your ability to understand language. You may have difficulty understanding long, complicated sentences, questions, and abstract vocabulary. It might also be harder for you to put your thoughts and feelings into words at times of stress, confusion, or tiredness.

Possible changes you might notice:

  • Changes in how your voice sounds
  • Flat or monotone voice with little expression
  • Difficulty figuring out the main point of a conversation
  • Difficulty remembering spoken directions or information without a visual cue
  • Trouble putting thoughts and feelings into words or organizing what to say
  • Problems with word retrieval, or finding the right word

Source: Jeanne E. Dise-Lewis, Ph.D, et. al (2002). BrainSTARS. Washington, D.C.: US Department of Education.


Brain Injury and Developmental Stages

Sometimes after a brain injury, it is hard to tell whether changes are normal or are a result of the brain injury. You may be unsure of when you are back to “normal” or what normal is anymore.

Click the buttons below for some basic information on abilities for teens in certain age groups. Keep in mind that these lists are based on averages and you might have been different from these guidelines even before the injury.

Developmental Stage: Ages 12–16

Developmental achievements:

  • Ability to think about many aspects of a problem at the same time
  • Development of abstract reasoning
  • Ability to plan, organize, and carry out complex projects
  • Ability to learn new information independently
  • Maturing social skills, including friendships based on shared interests

Brain injury at this stage typically causes:

  • Difficulty learning new information, especially abstract information
  • Rigid, inflexible thinking
  • Uncertainty about self and abilities
  • Difficulty managing frustrations
  • Withdrawing from friends and limiting social time

Interventions:

  • Make accommodations necessary for school and social success
  • Increase structure in the home
  • Limit homework assignments
  • Increase communication between home and school about homework, tests, and upcoming topics
  • Make sure you are clear on roles and responsibilities at home

Developmental Stage: Ages 16–19

Developmental achievements:

  • Complex reasoning and judgment
  • Ability to create and accomplish goals independently
  • Solid sense of personal identity and relatively stable personality
  • Development of vocational plans and goals
  • Sophisticated social skills

Brain injury at this stage typically causes:

  • Difficulty attending to complex situations
  • Poor decision-making and judgment
  • Difficulty with spontaneous behavior
  • Poor organizational skills
  • Social awkwardness

Interventions:

  • Recognize the rippling effects of the injury on personal, emotional, and social life
  • Identify roles and responsibilities within your competence 
  • Clarify the nature of learning difficulties
  • Reduce course load, tailoring coursework to student’s strengths
  • Provide a counselor or other professional at school for you to check in with on a daily basis

Source: Jeanne E. Dise-Lewis, Ph.D, et. al (2002). BrainSTARS. Washington, D.C.: US Department of Education.